Flora of North America species comparison

velamentous.

slender or pseudobulbous, clustered or distant along rhizome.

1–several, conduplicate, thin [fleshy], leathery.

terminal, simple or paniculate racemes with ± secund branches;

peduncle enclosed by scarious sheaths.

few to many, mostly not resupinate, generally small;

dorsal sepal free;

lateral sepals adnate to column foot forming mentum;

petals smaller than sepals, free;

lip 3-lobed [simple], adnate to and articulate with column foot, forming part of mentum;

disc usually callose, pubescent;

column semiterete, short;

foot distinct;

stigmas confluent, transverse under rostellum, viscidium ovate to elliptic;

anther terminal, incumbent, operculate;

pollinia 4, globose or ellipsoid, hard, waxy, attached to single short stipe.

capsules.