Oxalidales
Encyclopedia
The Oxalidales are an order
of flowering plant
s, included within the rosid subgroup of eudicots
. The following families are typically placed here:
The Cephalotaceae family contains a single species, a pitcher plant
found in Southwest Australia
.
Under the Cronquist system
, most of the above families were placed in the Rosales
. The Oxalidaceae were placed in the Geraniales
, and the Elaeocarpaceae split between the Malvales
and Polygalales, in the latter case being treated as the Tremandraceae
.
Order (biology)
In scientific classification used in biology, the order is# a taxonomic rank used in the classification of organisms. Other well-known ranks are life, domain, kingdom, phylum, class, family, genus, and species, with order fitting in between class and family...
of flowering plant
Flowering plant
The flowering plants , also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies...
s, included within the rosid subgroup of eudicots
Eudicots
Eudicots and Eudicotyledons are botanical terms introduced by Doyle & Hotton to refer to a monophyletic group of flowering plants that had been called tricolpates or non-Magnoliid dicots by previous authors...
. The following families are typically placed here:
- Family BrunelliaBrunelliaBrunellia is a genus of trees in the family Brunelliaceae. It consists of 62 species which grow in the mountainous regions from southern Mexico to Bolivia...
ceae - Family CephalotaceaeCephalotusCephalotus is a genus which contains one species, Cephalotus follicularis, a small carnivorous pitcher plant. The pit-fall traps of the modified leaves have inspired the common names for this plant, which include Albany Pitcher Plant, Western Australian Pitcher Plant, fly-catcher plant or...
(Cephalotus follicularis) - Family ConnaraceaeConnaraceaeThe Connaraceae is a family of 16 genera and about 350 species.-Genera:* Agelaea* Burttia* Cnestidium* Cnestis* Connarus* Ellipanthus* Hemandradenia* Jollydora* Manotes* Pseudoconnarus* Rourea...
- Family CunoniaceaeCunoniaceaeThe Cunoniaceae is a family of 26 genera and about 350 species of woody plants in the Antarctic flora, with many laurifolia species with glossy leaves endemic to laurel forest habitat. The family is native to Australia, New Caledonia, New Guinea, New Zealand, southern South America, the Mascarene...
- Family ElaeocarpaceaeElaeocarpaceaeElaeaocarpaceae is a family of flowering plants. The family approximately contains 605 species of trees and shrubs in 12 genera. The largest genera are Elaeocarpus, with about 350 species, and Sloanea, with about 150....
- Family HuaceaeHuaceaeHuaceae is a family of plant in the rosids group, which has been classed in the orders Malpighiales, Malvales, and Violales or in its own order Huales. The APG II system places it in the clade eurosids I, whereas the APG III system of 2009 placed it within the Oxalidales. It contains the following...
- Family OxalidaceaeOxalidaceaeThe Oxalidaceae, or wood sorrel family, are a small family of eight genera of herbaceous plants, shrubs and small trees, with the great majority of the 900 species in the genus Oxalis...
(wood sorrel family)
The Cephalotaceae family contains a single species, a pitcher plant
Pitcher plant
Pitcher plants are carnivorous plants whose prey-trapping mechanism features a deep cavity filled with liquid known as a pitfall trap. It has been widely assumed that the various sorts of pitfall trap evolved from rolled leaves, with selection pressure favouring more deeply cupped leaves over...
found in Southwest Australia
Southwest Australia
Southwest Australia is a biodiversity hotspot that includes the Mediterranean forests, woodlands, and scrub ecoregions of Western Australia. The region has a wet-winter, dry-summer Mediterranean climate, one of five such regions in the world...
.
Under the Cronquist system
Cronquist system
The Cronquist system is a taxonomic classification system of flowering plants. It was developed by Arthur Cronquist in his texts An Integrated System of Classification of Flowering Plants and The Evolution and Classification of Flowering Plants .Cronquist's system places flowering plants into two...
, most of the above families were placed in the Rosales
Rosales
Rosales is an order of flowering plants. It is one of the four orders in the nitrogen fixing clade of the fabids and is sister to a clade consisting of Fagales and Cucurbitales. It contains about 7700 species, distributed into about 260 genera. Rosales comprises nine families, the type family...
. The Oxalidaceae were placed in the Geraniales
Geraniales
Geraniales are a small order of flowering plants, included within the rosid subgroup of dicotyledons. The largest family in the order is Geraniaceae with over 800 species. In addition, the order includes some small families, contributing together another less than 40 species...
, and the Elaeocarpaceae split between the Malvales
Malvales
Malvales are an order of flowering plants. As circumscribed by APG II-system, it includes about 6000 species within nine families. The order is placed in the eurosids II, which are part of the eudicots....
and Polygalales, in the latter case being treated as the Tremandraceae
Tremandraceae
Tremandraceae R. Br. ex DC. is the name of a defunct family of flowering plants. It contained three genera: Platytheca, Tetratheca, and Tremandra. In 2006, a molecular phylogenetic study showed that Tremandraceae is embedded in Elaeocarpaceae...
.