Disperis
| Disperis | |
|---|---|
| |
| Disperis capensis | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Orchidoideae |
| Tribe: | Orchideae |
| Subtribe: | Brownleeinae |
| Genus: | Disperis Sw. |
| Subgenera | |
| |
| Range of genus | |
Disperis is a
.Etymology
The genus name Disperis derives from the
ancient greek δίς (dís), meaning "twice", and πήρα (pḗra), meaning "bag", "pouch",[2][3] because of to the pouches formed by the lateral sepals.[4]
Range and variation
Disperis consists of two
distinguished by an entire lip appendage. Most of its species are from southern Africa. A few are from East Africa and Madagascar. Subgenus Dryorkis has about 48 species and is distinguished by a 2-lobed lip appendage. It is found throughout tropical Africa as well as Madagascar and nearby islands, and it has one widespread species in tropical Asia
.
Pollination
Like
s.s. in order to attract these pollinators
.
Relationships
In the Genera Orchidacearum
molecular phylogeny studies challenged this taxonomic view. Analysis of the nuclear ribosomal ITS first suggested the polyphyly of Coryciinae as Disperis did not branch with Corycium and Pterygodium.[8] Moreover, Disperis appeared more closely related to Brownleea than to the subtribe Coryciinae, though this affinity did not receive strong statistical support.[6] In a classification of orchids that was published in 2015, Disperis was transferred to the subtribe Brownleeinae.[1] Brownleea and Disperis have a similar pollen structure and an upright labellum that lies over the front of the stigma. A median sepal spur is found in all six species of Brownleea and in many species of Disperis.[6]
References
- ^ a b Mark W. Chase, Kenneth M. Cameron, John V. Freudenstein, Alec M. Pridgeon, Gerardo A. Salazar, Cássio van den Berg, and André Schuiteman. 2015. "An updated classification of Orchidaceae". Botanical Journal of the Linnean Society 177(2):151-174. (See External links below).
- OCLC 461974285.
- ^ Bailly, Anatole. "Greek-french dictionary online". www.tabularium.be. Retrieved 2017-01-24.
- ISBN 978-0-8493-2676-9(vol. II).
- ^ Hubert Kurzweil and John C. Manning. 2005. "A synopsis of the genus Disperis Sw. (Orchidaceae)". Adansonia 27(2):155-207.
- ^ .
- ISBN 978-0-19-850710-9. (See External links below).
- ^ Emmanuel J. P. Douzery, Alec M. Pridgeon, Paul Kores, H. P. Linder, Hubert Kurzweil, and Mark W. Chase. 1999. "Molecular phylogenetics of Diseae (Orchidaceae): a contribution from nuclear ribosomal ITS sequences". American Journal of Botany 86(6):887-899. PDF[dead link]
External links
- An updated classification of Orchidaceae (2015) At: Botanical Journal of the Linnean Society At: Wiley Online Library
- synopsis of Disperis At Adansonia 27(2) At Adansonia At journals At home page of the Muséum national d'Histoire naturelle
- page 14 In: Genera Orchidacearum volume 2 At: Genera Orchidacearum At: Google Books
Media related to Disperis at Wikimedia Commons
Data related to Disperis at Wikispecies
