Biology:Coeliopsidinae

Short description: Subtribe of orchids

Coeliopsidinae
Coeliopsis hyacinthosma
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Orchidaceae
Subfamily:	Epidendroideae
Tribe:	Cymbidieae
Subtribe:	Coeliopsidinae Szlach.
Type genus
Coeliopsis

Coeliopsidinae is an orchid subtribe in the tribe Cymbidieae. The three members of this subtribe have traditionally been lumped in with Stanhopeinae, but obvious morphological traits and new molecular analysis by Whitten et al. in 2000 confirmed the group reclassified by Szlachetko (1995).

These genera have smooth, unribbed, ovoid pseudobulbs with 3-4 large and thin plicate leaves. The inflorescences are thick and bear globose flowers with thick, fleshy sepals and petals, presence of a column foot and mentum. Roots have prominent root hairs.

Most distinct is the viscidia that are button-shaped and sclerified with short stipes. The three genera all have elongated Maxillaria-type dust seeds and not Stanhopea-type balloon seeds.

Like Stanhopeinae the members of this group are pollinated by male euglossine bees. The sticky viscidia of this group are adapted to attachment on the smooth surface of the scutum of the male bees. (Peristeria elata, the pollinia attaches to the bee's head; in Coeliopsis, on the frons of the bee's head; Williams, 1982.)

Stanhopeinae and Coeliopsidinae are now considered closely related sister subtribes.

Genera

Image	Genus	Species
	Coeliopsis Rchb.f. (1872)	Coeliopsis hyacinthosma
	Lycomormium Rchb.f. 1852	Lycomormium ecuadorense H.R.Sweet - Ecuador Lycomormium elatum C.Schweinf. - Peru Lycomormium fiskei H.R.Sweet - Ecuador, Peru Lycomormium schmidtii A.Fernández - Colombia Lycomormium squalidum (Poepp. & Endl.) Rchb.f. - Ecuador, Peru, Colombia
	Peristeria Hook. 1836	Peristeria aspersa Rolfe 1890 Peristeria cerina Lindl. 1837 Peristeria cochlearis Garay 1972 Peristeria elata Hook. 1831 Peristeria ephippium Rchb.f. 1883 Peristeria esperanzae P.Ortiz 2008 Peristeria guttata Knowles & Westc. 1838 Peristeria leucoxantha Garay 1954 Peristeria lindenii Rolfe 1891 Peristeria oscarii-rodrigoi Archila, Szlach. & Kolan. 2015 Peristeria pendula Hook. 1836 Peristeria selligera Rchb.f. 1887 Peristeria serroniana (Barb.Rodr.) Garay 1954

References

• W. Mark Whitten, Norris H. Williams and Mark W. Chase (2000). "Subtribal and generic relationships of Maxillarieae (Orchidaceae) with emphasis on Stanhopeinae: combined molecular evidence". American Journal of Botany (American Journal of Botany, Vol. 87, No. 12) 87 (12): 1842–1856. doi:10.2307/2656837. PMID 11118422. 

Wikidata ☰ Q3682264 entry