Drosera sect. Erythrorhiza
Encyclopedia
Drosera sect. Erythrorhiza is a section
of 14 species of tuber
ous species in the genus Drosera. It represents a natural group of all the rosetted
tuberous Drosera. Most species are endemic to Western Australia
, but D. aberrans
, D. praefolia
, D. schmutzii
, and D. whittakeri
are also found in eastern Australia.
The section was first formally described by Jules Émile Planchon
in 1848 as series
Erythrorhizae. Ludwig Diels
reclassified the genus in his 1906 monograph
of the family, recognizing this section, now spelled Erythrorhiza, within subgenus Ergaleium.
Section (botany)
In botany, a section is a taxonomic rank below the genus, but above the species. The subgenus, if present, is higher than the section, and the rank of series, if present, is below the section. Sections are typically used to help organise very large genera, which may have hundreds of species...
of 14 species of tuber
Tuber
Tubers are various types of modified plant structures that are enlarged to store nutrients. They are used by plants to survive the winter or dry months and provide energy and nutrients for regrowth during the next growing season and they are a means of asexual reproduction...
ous species in the genus Drosera. It represents a natural group of all the rosetted
Rosette (botany)
In botany, a rosette is a circular arrangement of leaves, with all the leaves at a single height.Though rosettes usually sit near the soil, their structure is an example of a modified stem.-Function:...
tuberous Drosera. Most species are endemic to 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...
, but D. aberrans
Drosera aberrans
Drosera aberrans is a perennial tuberous species in the genus Drosera that is native to New South Wales, South Australia, and Victoria. It grows in a rosette 3 to 5 cm in diameter with green, orange-yellow, or red leaves. It is native to southern inland South Australia, southern and central...
, D. praefolia
Drosera praefolia
Drosera praefolia is a perennial tuberous species in the genus Drosera that is endemic to South Australia. It grows in a rosette 4 to 6 cm in diameter with green or sometimes red leaves. It is native to south-east South Australia from the southern Fleurieu Peninsula south to Kangaroo Island....
, D. schmutzii
Drosera schmutzii
Drosera schmutzii is a perennial tuberous species in the genus Drosera that is native to New South Wales, South Australia, and Victoria. It grows in a rosette 3 to 4 cm in diameter with green to red leaves. It is entirely endemic to Kangaroo Island in South Australia and occurs mostly in the...
, and D. whittakeri
Drosera whittakeri
Drosera whittakeri is a sundew that is native to South Australia.-Description:Plants are 4 to 8 cm in diameter, with broadly spathulate leaves arranged in a rosette. These may be green, orange-yellow or red in colour and are 10 to 15 mm long and 9 to 13 mm wide...
are also found in eastern Australia.
The section was first formally described by Jules Émile Planchon
Jules Émile Planchon
Jules Émile Planchon was a French botanist born in Ganges, Hérault.-Biography:After receiving his Doctorate of Science at the University of Montpellier in 1844, he worked for a while at the Royal Botanical Gardens in London, and for a few years was a teacher in Nancy and Ghent...
in 1848 as series
Series (botany)
Series is a low-level taxonomic rank below that of section but above that of species.In botany, a series is a subdivision of a genus...
Erythrorhizae. Ludwig Diels
Ludwig Diels
Dr. Friedrich Ludwig Emil Diels , was a German botanist.Diels was born in Hamburg, the son of the classical scholar Hermann Alexander Diels. From 1900 to 1902 he traveled together with Ernst Pritzel through South Africa, Java, Australia and New Zealand. Shortly before the first world war he...
reclassified the genus in his 1906 monograph
Monograph
A monograph is a work of writing upon a single subject, usually by a single author.It is often a scholarly essay or learned treatise, and may be released in the manner of a book or journal article. It is by definition a single document that forms a complete text in itself...
of the family, recognizing this section, now spelled Erythrorhiza, within subgenus Ergaleium.