Tribe III
NEOTTIEAE. Anther one, posterior, operculate, or erect and persistent; cells distinct, parallel; pollinia granular, powdery, or sectile. Stems without pseudo-bulbs. There are six sub-tribes of Neottieae, and eighty-one genera, nearly all of which are rhizomatose terrestrial plants--Vanilla is sub-epiphytic. They have erect, simple stems, which are leafy at the base, or are quite leafless. Neottieae are represented in both hemispheres, a considerable number being extra-tropical. Examples are: Anaectochilus, Pogonia, Sobralia, Vanilla.