Coeliopsidinae is an
orchid
Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant.
Along with the Asteraceae, they are one of the two largest families of flowerin ...
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
pseudobulb
The pseudobulb is a storage organ found in many epiphytic and terrestrial sympodial orchids. It is derived from a thickening of the part of a stem between leaf nodes and may be composed of just one internode or several, termed heteroblastic and ...
s with 3-4 large and thin plicate leaves. The inflorescences are thick and bear globose flowers with thick, fleshy
sepal
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coine ...
s 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
The tribe (biology), tribe Euglossini, in the subfamily Apinae, commonly known as orchid bees or euglossine bees, are the only group of Pollen basket, corbiculate bees whose non-parasitic members do not all possess Eusociality, eusocial behavior. ...
bees. The sticky viscidia of this group are adapted to attachment on the smooth surface of the
scutum
The ''scutum'' (; plural ''scuta'') was a type of shield used among Italic peoples in antiquity, most notably by the army of ancient Rome starting about the fourth century BC.
The Romans adopted it when they switched from the military formati ...
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
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Coeliopsis''
*''
Lycomormium''
*''
Peristeria''
References
*
{{Taxonbar, from=Q3682264
Orchid subtribes