Hemipilia pinguicula
Genus of flowering plants
From Wikipedia, the free encyclopedia
Hemipilia pinguicula is a species of flowering plant in the family Orchidaceae. It is native to south-eastern China (north-eastern Zhejiang).[1]
| Hemipilia pinguicula | |
|---|---|
| |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Orchidoideae |
| Subtribe: | Orchidinae |
| Genus: | Hemipilia X.H.Jin, Lu Q.Huang, W.T.Jin & X.G.Xiang |
| Species: | H. pinguicula |
| Binomial name | |
| Hemipilia pinguicula (Rchb.f. & S.Moore) Y.Tang & H.Peng | |
| Synonyms | |
| |
Description
Hemipilia pinguicula grows from an ovoid shaped tuber. It has a single stem leaf, situated near the base of the stem. The inflorescence consists of a single relatively large flower, rose-red to purple in colour, with a three-lobed lip (labellum). The upper sepal and the lateral petals are grouped to form a hood. The flower has a conical spur, longer than the lip. There are two stigmas that extend under the short rostellum.[2]
Taxonomy
The species was first described in 1878 as Gymnadenia pinguicula. It was later transferred again to Habenaria and then Amitostigma.[1] A molecular phylogenetic study in 2014, found that species of Amitostigma, Neottianthe and Ponerorchis were mixed together in a single clade, making none of the three genera monophyletic as then circumscribed. Amitostigma and Neottianthe were subsumed into Ponerorchis, with Amitostigma pinguicula becoming Ponerorchis pinguicula.[3] Later studies suggested that Ponerorchis pinguicula lay outside the main clade consisting of Hemipilia, Ponerorchis, Sirindhornia, and Tsaiorchis, and a new genus, Shizhenia, was created for it.[2][4] After some adjustment of the generic boundaries, the genus Shizhenia was synonymized with the genus Hemipilia.