Banksia lemanniana
Encyclopedia
Banksia lemanniana, commonly known as the Yellow lantern Banksia or Lemann's Banksia, is a species of woody shrub in the genus Banksia
of the family Proteaceae
. It generally grows as an open shrub or small tree to 5 m (15 ft) high with stiff serrated leaves, and unusually hanging inflorescences. Flowering occurs over summer, the greenish buds developing into oval flower spikes before turning grey and developing the characteristic large woody follicles. It occurs within and just east of the Fitzgerald River National Park
on the south coast of Western Australia
.
First described by Carl Meissner
in 1856, it was named in honour of Charles Morgan Lemann. It is one of three or four related species all with pendent inflorescences. No subspecies are recognised. Banksia lemanniana is classified as Not Threatened under the Wildlife Conservation Act of Western Australia
. Unlike many Western Australian banksias, it appears to have some resistance to dieback from the soil-borne water mould
Phytophthora cinnamomi
.
or more oval (cuneate to obovate) and measure 3 to 9 cm (1.2–3.6 in) in length by 1.2–3.5 cm (0.5–1.5 in) wide. The leaf margins are serrated, with many teeth measuring 0.1 to 0.3 cm each. Flowering typically occurs between October and January. The cylindrical inflorescence
s hang down from branchlets and measure 5–11 cm (2–4.4 in) in length and 8-10 cm (3-4 in) in diameter. They are green-yellow in colour and smell of honey, while the buds are an attractive chocolate brown in colour until the yellow bud push through. The inflorescences turn grey as they age, and the old flowers remain as up to 20 large woody follicles
develop. Oval in shape, wrinkled in texture and covered with fine hair, they can reach 4.5 cm (1.8 in) long, 3 cm (1.2 in) high, and 3 cm (1.2 in) wide. Seedlings have cuneate (wedges shaped) cotyledons which measure 1.2-1.5 cm long and 1.5-1.8 cm wide. They are dull green, sometimes with a reddish tinge, and the margin of the wedge may be crenulated. The hypocotyl is red and measures 1-2 cm (0.4-0.8 in) high and 0.25-0.3 cm wide.
in 1856, from a collection by James Drummond
in early 1847. Its specific name is for English botanist Charles Morgan Lemann. It has been misspelt "lehmanniana" after being mistakenly attributed to the German botanist Johann Lehmann
.
George placed B. lemanniana in B. subg. Banksia
because its inflorescence is a typical Banksia flower spike; in B. sect. Banksia
because of its straight style
s; and B. ser. Tetragonae
because of its pendulous inflorescences and tetragonal limbs. He considered it closely related to B. aculeata
and B. caleyi
, which are smaller, more compact, shrubs with red or pink tinged inflorescences.
In 1996, Kevin Thiele
and Pauline Ladiges published the results of a cladistic
analysis of morphological
characters of Banksia. They retained George's subgenera and many of his series, but discarded his sections. George's B. ser. Tetragonae was found to be monophyletic, and therefore retained; and their analysis of the relationships within the series supported the placement of B. lemanniana as sister to the pair of species B. aculeata and B. caleyi.
B. lemanniana's placement in Thiele and Ladiges' arrangement
may be summarised as follows:
The arrangement of Thiele and Ladiges was not accepted by George, and was discarded in his 1999 revision.
Under George's 1999 arrangement
, B. aculeata's placement was as follows:
Since 1998, Austin Mast
has been publishing results of ongoing cladistic analyses of DNA sequence
data for the subtribe Banksiinae. His analyses suggest a phylogeny that is rather different to previous taxonomic arrangements, but support the placement of the three species in a clade corresponding closely with B. ser. Tetragonae.
Early in 2007 Mast and Thiele initiated a rearrangement by transferring Dryandra to Banksia, and publishing B. subg. Spathulatae for the species having spoon-shaped cotyledon
s; in this way they also redefined the autonym
B. subg. Banksia
. They foreshadowed publishing a full arrangement once DNA sampling of Dryandra was complete; in the meantime, if Mast and Thiele's nomenclatural changes are taken as an interim arrangement, then B. lemanniana is placed in B. subg. Banksia.
. Outside the park, it reaches the Ravensthorpe Range to the northeast and the rabbit proof fence to the east, as well as isolated populations westwards as far as Pallinup estuary. It is found on the tops and slopes of hills as well as flatter areas on rocky or lateritic
soil, as well as sand, in mallee scrubland
or heath
. It is not threatened as much of its range lies within a National Park, and it is not a species collected for the cut flower industry.
(Phylidonyris novaehollandiae), Red Wattlebird
(Anthochaera carunculata), native and European honey bees, wasps and ants. The upside down flower spikes drip nectar onto the ground or lower leaves, suggesting pollination by nonflying mammals which are attracted to the scent.
Banksia lemanniana is killed by fire and regenerates from seed. It is unclear how quickly seedlings take to reach flowering in the wild, but cultivated records suggest around five or six years. If fire occurs too frequently, plants are burned before reaching maturity or before they have produced sufficient seed to ensure regeneration of the population. This may cause a population decline or even local extinction. Too long a time between fires also causes population decline, as more plants die of natural attrition without releasing their seed, resulting in seed wastage.
Banksia lemanniana has been shown to have a low to moderate susceptibility to dieback from the soil-borne water mould
Phytophthora cinnamomi
, unlike many Western Australian banksias. A study on cultivated plants in South Australia inoculated with P. cinnamomi and P. citricola
found B. lemanniana to have an overall low susceptibility overall to both organisms, although 2 to 3 week old seedlings appeared more vulnerable than 10 month old ones.
Banksia
Banksia is a genus of around 170 species in the plant family Proteaceae. These Australian wildflowers and popular garden plants are easily recognised by their characteristic flower spikes and fruiting "cones" and heads. When it comes to size, banksias range from prostrate woody shrubs to trees up...
of the family Proteaceae
Proteaceae
Proteaceae is a family of flowering plants distributed in the Southern Hemisphere. The family comprises about 80 genera with about 1600 species. Together with the Platanaceae and Nelumbonaceae they make up the order Proteales. Well known genera include Protea, Banksia, Embothrium, Grevillea,...
. It generally grows as an open shrub or small tree to 5 m (15 ft) high with stiff serrated leaves, and unusually hanging inflorescences. Flowering occurs over summer, the greenish buds developing into oval flower spikes before turning grey and developing the characteristic large woody follicles. It occurs within and just east of the Fitzgerald River National Park
Fitzgerald River National Park
Fitzgerald River National Park is a national park in Western Australia , southeast of Perth, in the Shire of Ravensthorpe and the Shire of Jerramungup....
on the south coast of Western Australia
Western Australia
Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...
.
First described by Carl Meissner
Carl Meissner
Carl Daniel Friedrich Meissner was a Swiss botanist.Born in Bern, Switzerland on 1 November 1800, he was christened Meisner but later changed the spelling of his name to Meissner. For most of his 40 year career he was Professor of Botany at University of Basel...
in 1856, it was named in honour of Charles Morgan Lemann. It is one of three or four related species all with pendent inflorescences. No subspecies are recognised. Banksia lemanniana is classified as Not Threatened under the Wildlife Conservation Act of Western Australia
Wildlife Conservation Act 1950
The Wildlife Conservation Act 1950 is an act of the Western Australian Parliament that provides the statute relating to conservation and legal protection of flora and fauna....
. Unlike many Western Australian banksias, it appears to have some resistance to dieback from the soil-borne water mould
Water mould
Oömycota or oömycetes form a distinct phylogenetic lineage of fungus-like eukaryotic microorganisms . They are filamentous, microscopic, absorptive organisms that reproduce both sexually and asexually...
Phytophthora cinnamomi
Phytophthora cinnamomi
Phytophthora cinnamomi is a soil-borne water mould that produces an infection which causes a condition in plants called root rot or dieback. The plant pathogen is one of the world's most invasive species and is present in over 70 countries from around the world.- Life cycle and effects on plants :P...
.
Description
Banksia lemanniana grows as an open shrub or, less commonly, a small tree to 5 m (15 ft) in height, with a spreading habit. The trunk has thin grey bark and can reach a diameter of 15 cm (6 in). The new growth is finely hairy and predominantly seen in summer, before losing its hair and becoming glabrous (smooth) over two years. The stiff leaves are narrowly wedge-shapedLeaf shape
In botany, leaf shape is characterised with the following terms :* Acicular : Slender and pointed, needle-like* Acuminate : Tapering to a long point...
or more oval (cuneate to obovate) and measure 3 to 9 cm (1.2–3.6 in) in length by 1.2–3.5 cm (0.5–1.5 in) wide. The leaf margins are serrated, with many teeth measuring 0.1 to 0.3 cm each. Flowering typically occurs between October and January. The cylindrical inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
s hang down from branchlets and measure 5–11 cm (2–4.4 in) in length and 8-10 cm (3-4 in) in diameter. They are green-yellow in colour and smell of honey, while the buds are an attractive chocolate brown in colour until the yellow bud push through. The inflorescences turn grey as they age, and the old flowers remain as up to 20 large woody follicles
Follicle (fruit)
In botany, a follicle is a dry unilocular many-seeded fruit formed from one carpel and dehiscing by the ventral suture in order to release seeds, such as in larkspur, magnolia, banksia, peony and milkweed....
develop. Oval in shape, wrinkled in texture and covered with fine hair, they can reach 4.5 cm (1.8 in) long, 3 cm (1.2 in) high, and 3 cm (1.2 in) wide. Seedlings have cuneate (wedges shaped) cotyledons which measure 1.2-1.5 cm long and 1.5-1.8 cm wide. They are dull green, sometimes with a reddish tinge, and the margin of the wedge may be crenulated. The hypocotyl is red and measures 1-2 cm (0.4-0.8 in) high and 0.25-0.3 cm wide.
Taxonomy
Banksia lemanniana was formally described by Carl MeissnerCarl Meissner
Carl Daniel Friedrich Meissner was a Swiss botanist.Born in Bern, Switzerland on 1 November 1800, he was christened Meisner but later changed the spelling of his name to Meissner. For most of his 40 year career he was Professor of Botany at University of Basel...
in 1856, from a collection by James Drummond
James Drummond
James Drummond may refer to:*James Drummond, 1st Baron Maderty*James Drummond , Bishop of Brechin*James Drummond , Scottish-born botanist and naturalist, early settler in Western Australia....
in early 1847. Its specific name is for English botanist Charles Morgan Lemann. It has been misspelt "lehmanniana" after being mistakenly attributed to the German botanist Johann Lehmann
Johann Georg Christian Lehmann
Johann Georg Christian Lehmann was a German botanist.Born at Haselau, near Uetersen, Holstein, Lehmann studied medicine in Copenhagen and Göttingen, obtained a doctorate in medicine in 1813 and a doctorate in philosophy from he University of Jena in 1814...
.
George placed B. lemanniana in B. subg. Banksia
Banksia subg. Banksia
Banksia subg. Banksia is a valid botanic name for a subgenus of Banksia. As an autonym, it necessarily contains the type species of Banksia, B. serrata . Within this constraint, however, there have been various circumscriptions.-Banksia verae:B. subg...
because its inflorescence is a typical Banksia flower spike; in B. sect. Banksia
Banksia sect. Banksia
Banksia sect. Banksia is one of four sections of Banksia subgenus Banksia. It contains those species of subgenus Banksia with straight or sometimes curved but not hooked styles. These species all have cylindrical inflorescences and usually exhibit a bottom-up sequence of flower anthesis...
because of its straight style
Gynoecium
Gynoecium is most commonly used as a collective term for all carpels in a flower. A carpel is the ovule and seed producing reproductive organ in flowering plants. Carpels are derived from ovule-bearing leaves which evolved to form a closed structure containing the ovules...
s; and B. ser. Tetragonae
Banksia ser. Tetragonae
Banksia ser. Tetragonae is a taxonomic series in the genus Banksia. It consists of three closely related species of erect shrub with pendulous inflorescences in section Banksia. These are B. lemanniana , B. caleyi and B. aculeata ....
because of its pendulous inflorescences and tetragonal limbs. He considered it closely related to B. aculeata
Banksia aculeata
Banksia aculeata, commonly known as Prickly Banksia, is a species of shrub native to the Stirling Range in southwest Western Australia. One of three closely related species all of which have distinctive upside down lantern-like inflorescences, it bears pinkish blooms in early summer. The leaves...
and B. caleyi
Banksia caleyi
Banksia caleyi, commonly known as the red lantern banksia or Cayley's banksia, is a species of shrub in the plant genus Banksia. It occurs in southern Western Australia south and east of the Stirling Ranges through to around Jerramungup...
, which are smaller, more compact, shrubs with red or pink tinged inflorescences.
In 1996, Kevin Thiele
Kevin Thiele
Kevin R. Thiele is curator of the Western Australian Herbarium. His research interests include the systematics of the plant families Proteaceae, Rhamnaceae and Violaceae, and the conservation ecology of grassy woodland ecosystems...
and Pauline Ladiges published the results of a cladistic
Cladistics
Cladistics is a method of classifying species of organisms into groups called clades, which consist of an ancestor organism and all its descendants . For example, birds, dinosaurs, crocodiles, and all descendants of their most recent common ancestor form a clade...
analysis of morphological
Morphology (biology)
In biology, morphology is a branch of bioscience dealing with the study of the form and structure of organisms and their specific structural features....
characters of Banksia. They retained George's subgenera and many of his series, but discarded his sections. George's B. ser. Tetragonae was found to be monophyletic, and therefore retained; and their analysis of the relationships within the series supported the placement of B. lemanniana as sister to the pair of species B. aculeata and B. caleyi.
B. lemanniana's placement in Thiele and Ladiges' arrangement
Thiele and Ladiges' taxonomic arrangement of Banksia
Kevin Thiele and Pauline Ladiges' taxonomic arrangement of Banksia, published in 1996, was a novel taxonomic arrangement that was intended to align the taxonomy of Banksia more closely with the phylogeny that they had inferred from their cladistic analysis of the genus...
may be summarised as follows:
- BanksiaBanksiaBanksia is a genus of around 170 species in the plant family Proteaceae. These Australian wildflowers and popular garden plants are easily recognised by their characteristic flower spikes and fruiting "cones" and heads. When it comes to size, banksias range from prostrate woody shrubs to trees up...
- B. subg. IsostylisBanksia subg. IsostylisBanksia subg. Isostylis is a subgenus of Banksia. It contains three closely related species, all of which occur only in Southwest Western Australia. Members of subgenus Isostylis have dome-shaped flower heads that are superficially similar to those of B. ser...
(3 species) - B. elegansBanksia elegansThe Elegant Banksia is a species of shrub or small tree in the plant genus Banksia. It occurs only over a 65 square kilometre area north and west of Eneabba, Western Australia.-Ecology:...
(incertae sedis) - B. subg. BanksiaBanksia subg. BanksiaBanksia subg. Banksia is a valid botanic name for a subgenus of Banksia. As an autonym, it necessarily contains the type species of Banksia, B. serrata . Within this constraint, however, there have been various circumscriptions.-Banksia verae:B. subg...
- B. ser. TetragonaeBanksia ser. TetragonaeBanksia ser. Tetragonae is a taxonomic series in the genus Banksia. It consists of three closely related species of erect shrub with pendulous inflorescences in section Banksia. These are B. lemanniana , B. caleyi and B. aculeata ....
- B. elderianaBanksia elderianaThe Swordfish Banksia , commonly known as the swordfish banksia or palm banksia, is a species of shrub in the plant genus Banksia. It occurs in two disjunct areas in the Goldfields-Esperance region of Western Australia...
- B. lemanniana
- B. caleyiBanksia caleyiBanksia caleyi, commonly known as the red lantern banksia or Cayley's banksia, is a species of shrub in the plant genus Banksia. It occurs in southern Western Australia south and east of the Stirling Ranges through to around Jerramungup...
- B. aculeataBanksia aculeataBanksia aculeata, commonly known as Prickly Banksia, is a species of shrub native to the Stirling Range in southwest Western Australia. One of three closely related species all of which have distinctive upside down lantern-like inflorescences, it bears pinkish blooms in early summer. The leaves...
- B. elderiana
- B. ser. Lindleyanae (1 species)
- B. ser. BanksiaBanksia ser. BanksiaBanksia ser. Banksia is avalid botanic name for a series of Banksia. As an autonym, it necessarily contains the type species of Banksia, B. serrata . Within this constraint, however, there have been various circumscriptions.-According to Bentham:Banksia ser. Banksia originated in 1870 as...
(2 subseries, 12 species) - B. baueriBanksia baueriThe Woolly Banksia is a species of shrub in the plant genus Banksia. It occurs in southwest Western Australia north and east of Albany. It has a distinctively large and hairy looking inflorescence which can be 300 mm or more long and up to 200 mm in diameter.It is placed alone in series...
(incertae sedis) - B. lullfitziiBanksia lullfitziiBanksia lullfitzii is a species of shrub in the plant genus Banksia. A many-branched, spreading bush with golden-orange flowers, it occurs in scattered populations over a large area of the eastern goldfields of Western Australia...
(incertae sedis) - B. attenuataBanksia attenuataBanksia attenuata, commonly known as the candlestick banksia or slender banksia, is a species of plant in the proteaceae family. Commonly a tree, it reaches 10 m high, but is often a shrub in dryer areas 0.4 to 2 m high...
(incertae sedis) - B. ashbyiBanksia ashbyiThe Ashby's Banksia is a species of shrub in the plant genus Banksia. It occurs in heath and spinifex country along the coast of Western Australia between Geraldton and Exmouth.-Description:...
(incertae sedis) - B. coccineaBanksia coccineaBanksia coccinea, commonly known as the Scarlet Banksia, Waratah Banksia or Albany Banksia, is an erect shrub or small tree in the plant genus Banksia...
(incertae sedis) - B. ser. ProstrataeBanksia ser. ProstrataeBanksia ser. Prostratae is a taxonomic series in the genus Banksia. It consists of six closely related species in section Banksia, all endemic to Western Australia, with a prostrate habit.Banksia ser...
(8 species) - B. ser. CyrtostylisBanksia ser. CyrtostylisBanksia ser. Cyrtostylis is a valid botanic name for a taxonomic series within the plant genus Banksia. First published at sectional rank by George Bentham in 1870, it was demoted to a series by Alex George in 1981. The name has had three circumscriptions.-According to Bentham:Bentham published B....
(4 species) - B. ser. OchraceaeBanksia ser. OchraceaeBanksia ser. Ochraceae is a valid botanic name for a taxonomic series within the plant genus Banksia. It was published by Kevin Thiele in 1996, but discarded by Alex George in 1999.-Cladistics:...
(3 species, 2 subspecies) - B. ser. GrandesBanksia ser. GrandesBanksia ser. Grandes is a taxonomic series in the genus Banksia. It consists of two closely related species in section Banksia, both endemic to Western Australia. These are B. grandis and B. solandri ....
(2 species) - B. ser. SalicinaeBanksia ser. SalicinaeBanksia ser. Salicinae is a valid botanic name for a series of Banksia. First published by Carl Meissner in 1856, the name has had three circumscriptions.-According to Meissner:...
(2 series, 11 species, 4 subspecies) - B. ser. SpicigeraeBanksia ser. SpicigeraeBanksia ser. Spicigerae is a taxonomic series in the genus Banksia. It consists of the seven species in section Oncostylis that have cylindrical inflorescences. These range in form from small shrubs to tall trees. The leaves grow in either an alternate or whorled pattern, with various shape forms...
(3 series, 7 species, 6 varieties) - B. ser. QuercinaeBanksia ser. QuercinaeBanksia ser. Quercinae is avalid botanic name for a series of Banksia. First published by Carl Meissner in 1856, the name has had three circumscriptions.-According to Meissner:...
(2 species) - B. ser. DryandroideaeBanksia ser. DryandroideaeBanksia ser. Dryandroideae is a valid botanic name for a taxonomic series in the plant genus Banksia. First published by Carl Meissner in 1856, the name has had two circumscriptions. As presently circumscribed it is monotypic, containing only B. dryandroides.-According to Meissner:B. ser...
(1 species) - B. ser. AbietinaeBanksia ser. AbietinaeBanksia ser. Abietinae is avalid botanic name for a series of Banksia. First published by Carl Meissner in 1856, the name has had three circumscriptions.-According to Meissner:...
(4 subseries, 15 species, 8 varieties)
- B. ser. Tetragonae
- B. subg. Isostylis
The arrangement of Thiele and Ladiges was not accepted by George, and was discarded in his 1999 revision.
Under George's 1999 arrangement
George's taxonomic arrangement of Banksia
Alex George's taxonomic arrangement of Banksia was the first modern-day arrangement for that genus. First published in 1981 in the classic monograph The genus Banksia L.f. , it superseded the arrangement of George Bentham, which had stood for over a hundred years. It was overturned in 1996 by Kevin...
, B. aculeata's placement was as follows:
- BanksiaBanksiaBanksia is a genus of around 170 species in the plant family Proteaceae. These Australian wildflowers and popular garden plants are easily recognised by their characteristic flower spikes and fruiting "cones" and heads. When it comes to size, banksias range from prostrate woody shrubs to trees up...
- B. subg. BanksiaBanksia subg. BanksiaBanksia subg. Banksia is a valid botanic name for a subgenus of Banksia. As an autonym, it necessarily contains the type species of Banksia, B. serrata . Within this constraint, however, there have been various circumscriptions.-Banksia verae:B. subg...
- B. sect. BanksiaBanksia sect. BanksiaBanksia sect. Banksia is one of four sections of Banksia subgenus Banksia. It contains those species of subgenus Banksia with straight or sometimes curved but not hooked styles. These species all have cylindrical inflorescences and usually exhibit a bottom-up sequence of flower anthesis...
- B. ser. SalicinaeBanksia ser. SalicinaeBanksia ser. Salicinae is a valid botanic name for a series of Banksia. First published by Carl Meissner in 1856, the name has had three circumscriptions.-According to Meissner:...
(11 species, 7 subspecies) - B. ser. GrandesBanksia ser. GrandesBanksia ser. Grandes is a taxonomic series in the genus Banksia. It consists of two closely related species in section Banksia, both endemic to Western Australia. These are B. grandis and B. solandri ....
(2 species) - B. ser. BanksiaBanksia ser. BanksiaBanksia ser. Banksia is avalid botanic name for a series of Banksia. As an autonym, it necessarily contains the type species of Banksia, B. serrata . Within this constraint, however, there have been various circumscriptions.-According to Bentham:Banksia ser. Banksia originated in 1870 as...
(8 species) - B. ser. CrocinaeBanksia ser. CrocinaeBanksia ser. Crocinae is a taxonomic series in the genus Banksia. It consists of four closely related species, all of which are endemic to Western Australia; namely B. prionotes , B. burdettii , B. hookeriana and B. victoriae...
(4 species) - B. ser. ProstrataeBanksia ser. ProstrataeBanksia ser. Prostratae is a taxonomic series in the genus Banksia. It consists of six closely related species in section Banksia, all endemic to Western Australia, with a prostrate habit.Banksia ser...
(6 species, 3 varieties) - B. ser. CyrtostylisBanksia ser. CyrtostylisBanksia ser. Cyrtostylis is a valid botanic name for a taxonomic series within the plant genus Banksia. First published at sectional rank by George Bentham in 1870, it was demoted to a series by Alex George in 1981. The name has had three circumscriptions.-According to Bentham:Bentham published B....
(13 species) - B. ser. TetragonaeBanksia ser. TetragonaeBanksia ser. Tetragonae is a taxonomic series in the genus Banksia. It consists of three closely related species of erect shrub with pendulous inflorescences in section Banksia. These are B. lemanniana , B. caleyi and B. aculeata ....
- B. lemanniana
- B. caleyiBanksia caleyiBanksia caleyi, commonly known as the red lantern banksia or Cayley's banksia, is a species of shrub in the plant genus Banksia. It occurs in southern Western Australia south and east of the Stirling Ranges through to around Jerramungup...
- B. aculeataBanksia aculeataBanksia aculeata, commonly known as Prickly Banksia, is a species of shrub native to the Stirling Range in southwest Western Australia. One of three closely related species all of which have distinctive upside down lantern-like inflorescences, it bears pinkish blooms in early summer. The leaves...
- B. ser. Bauerinae (1 species)
- B. ser. QuercinaeBanksia ser. QuercinaeBanksia ser. Quercinae is avalid botanic name for a series of Banksia. First published by Carl Meissner in 1856, the name has had three circumscriptions.-According to Meissner:...
(2 species)
- B. ser. Salicinae
- B. sect. Coccinea (1 species)
- B. sect. OncostylisBanksia sect. OncostylisBanksia sect. Oncostylis is one of four sections of subgenus Banksia subg. Banksia. It contains those Banksia species with hooked pistils. All of the species in Oncostylis also exhibit a top-down sequence of flower anthesis, except for Banksia nutans which is bottom-up.Banksia sect...
(4 series, 22 species, 4 subspecies, 11 varieties)
- B. sect. Banksia
- B. subg. IsostylisBanksia subg. IsostylisBanksia subg. Isostylis is a subgenus of Banksia. It contains three closely related species, all of which occur only in Southwest Western Australia. Members of subgenus Isostylis have dome-shaped flower heads that are superficially similar to those of B. ser...
(3 species)
- B. subg. Banksia
Since 1998, Austin Mast
Austin Mast
Austin R. Mast is a research botanist. Born in 1972, he obtained a Ph.D. from the University of Wisconsin–Madison in 2000. He is currently an associate professor within the Department of Biological Science at Florida State University , and has been director of FSU's since August 2003.One of his...
has been publishing results of ongoing cladistic analyses of DNA sequence
DNA sequence
The sequence or primary structure of a nucleic acid is the composition of atoms that make up the nucleic acid and the chemical bonds that bond those atoms. Because nucleic acids, such as DNA and RNA, are unbranched polymers, this specification is equivalent to specifying the sequence of...
data for the subtribe Banksiinae. His analyses suggest a phylogeny that is rather different to previous taxonomic arrangements, but support the placement of the three species in a clade corresponding closely with B. ser. Tetragonae.
Early in 2007 Mast and Thiele initiated a rearrangement by transferring Dryandra to Banksia, and publishing B. subg. Spathulatae for the species having spoon-shaped cotyledon
Cotyledon
A cotyledon , is a significant part of the embryo within the seed of a plant. Upon germination, the cotyledon may become the embryonic first leaves of a seedling. The number of cotyledons present is one characteristic used by botanists to classify the flowering plants...
s; in this way they also redefined the autonym
Autonym (botany)
In botanical nomenclature, autonyms are automatically created names, as regulated by the International Code of Botanical Nomenclature . Autonyms are cited without an author. Relevant provisions are in articles 6.8, 22.1-3 and 26.1-3....
B. subg. Banksia
Banksia subg. Banksia
Banksia subg. Banksia is a valid botanic name for a subgenus of Banksia. As an autonym, it necessarily contains the type species of Banksia, B. serrata . Within this constraint, however, there have been various circumscriptions.-Banksia verae:B. subg...
. They foreshadowed publishing a full arrangement once DNA sampling of Dryandra was complete; in the meantime, if Mast and Thiele's nomenclatural changes are taken as an interim arrangement, then B. lemanniana is placed in B. subg. Banksia.
Distribution and habitat
Banksia lemanniana is found near the southern coast of Western Australia, most of its population lying protected within Fitzgerald River National ParkFitzgerald River National Park
Fitzgerald River National Park is a national park in Western Australia , southeast of Perth, in the Shire of Ravensthorpe and the Shire of Jerramungup....
. Outside the park, it reaches the Ravensthorpe Range to the northeast and the rabbit proof fence to the east, as well as isolated populations westwards as far as Pallinup estuary. It is found on the tops and slopes of hills as well as flatter areas on rocky or lateritic
Laterite
Laterites are soil types rich in iron and aluminium, formed in hot and wet tropical areas. Nearly all laterites are rusty-red because of iron oxides. They develop by intensive and long-lasting weathering of the underlying parent rock...
soil, as well as sand, in mallee scrubland
Mallee Woodlands and Shrublands
Mallee Woodlands and Shrublands is a Major Vegetation Group which occurs in semi-arid areas of southern Australia. The vegetation is dominated by mallee eucalypts which are rarely over 6 metres high...
or heath
Heath (habitat)
A heath or heathland is a dwarf-shrub habitat found on mainly low quality acidic soils, characterised by open, low growing woody vegetation, often dominated by plants of the Ericaceae. There are some clear differences between heath and moorland...
. It is not threatened as much of its range lies within a National Park, and it is not a species collected for the cut flower industry.
Ecology
A variety of pollinators have been recorded visiting the flower spikes, including New Holland HoneyeaterNew Holland Honeyeater
The New Holland Honeyeater is a honeyeater species found throughout southern Australia. It was among the first birds to be scientifically described in Australia, and was initially named Certhia novaehollandiae...
(Phylidonyris novaehollandiae), Red Wattlebird
Red Wattlebird
The Red Wattlebird , also known as Barkingbird or Gillbird, is a honeyeater; a group of birds found mainly in Australia and New Guinea which have highly developed brush-tipped tongues adapted for nectar feeding...
(Anthochaera carunculata), native and European honey bees, wasps and ants. The upside down flower spikes drip nectar onto the ground or lower leaves, suggesting pollination by nonflying mammals which are attracted to the scent.
Banksia lemanniana is killed by fire and regenerates from seed. It is unclear how quickly seedlings take to reach flowering in the wild, but cultivated records suggest around five or six years. If fire occurs too frequently, plants are burned before reaching maturity or before they have produced sufficient seed to ensure regeneration of the population. This may cause a population decline or even local extinction. Too long a time between fires also causes population decline, as more plants die of natural attrition without releasing their seed, resulting in seed wastage.
Banksia lemanniana has been shown to have a low to moderate susceptibility to dieback from the soil-borne water mould
Water mould
Oömycota or oömycetes form a distinct phylogenetic lineage of fungus-like eukaryotic microorganisms . They are filamentous, microscopic, absorptive organisms that reproduce both sexually and asexually...
Phytophthora cinnamomi
Phytophthora cinnamomi
Phytophthora cinnamomi is a soil-borne water mould that produces an infection which causes a condition in plants called root rot or dieback. The plant pathogen is one of the world's most invasive species and is present in over 70 countries from around the world.- Life cycle and effects on plants :P...
, unlike many Western Australian banksias. A study on cultivated plants in South Australia inoculated with P. cinnamomi and P. citricola
Phytophthora citricola
Phytophthora citricola is a plant pathogen. It was first described by Sawada in 1927 when it was isolated from orange trees in present-day Taiwan. It has since been found causing disease on a wide variety of plants and is considered to be cosmopolitan....
found B. lemanniana to have an overall low susceptibility overall to both organisms, although 2 to 3 week old seedlings appeared more vulnerable than 10 month old ones.