288 
ORCHIDE^E. 
Tr. II. LIMODOREsE. Pollen-masses granular : granules in 
only a slight state of cohesion. Anthers free. 
* Stigma rostellated. 
7. Goodyera. Perianth ringent. Lip saccate at the base, 
entire, included. Stigma subcordate. Rostellum erect, bi- 
partite, with a large squarish appendage between its slender 
segments. 
8. Spiranthes. Perianth ringent. Lip channeled, clawed, 
fringed. Stigma roundish. Rostellum straight, bifid with 
an elongate linear appendage between its points. 
9. Listera. Perianth ringent. Lip deflexed, 2-lobed. Stigma 
transverse. Rostellum elongated, entire, acute, with a mi- 
nute globose appendage at its somewhat reflexed apex. 
Column very short. 
10. Neottia. Perianth hooded. Lip deflexed, 2-lobed, sac- 
cate at the base. Stigma transverse. Rostellum flat, broad, 
prominent, entire, without an appendage. Column elongated. 
11. Epipactis. Perianth patent. Lip interrupted, the basal 
division concave, terminal one larger with 2 projecting plates 
at its base above. Stigma nearly square. Rostellum short, 
terminated by a globose appendage. Anth. terminal, erect, 
sessile, 2-celled : cells without septa. Column short. Ger- 
men straight, on a twisted stalk. 
** Stigma without a rostellum. 
12. Cephalanthera. Perianth converging (in C. rubra spread- 
ing). Lip interrupted, the basal division saccate, jointed to 
the recurved terminal one. Stigma transverse. Rostellum 0. 
Anth. terminal, erect, moveable, shortly and thickly stalked, 
2-celled : cells with imperfect septa, Column elongated. 
Germen sessile, twisted. 
Tr. III. MALAXIDEjE. Pollen cohering in granules or masses 
which are definite in number and at length waxy and con- 
fluent. Anther free. 
13. Corallorrhiza. Perianth converging. Lip with 2 pro- 
minent longitudinal ridges at the base, 3-lobed, lateral lobes 
small, middle lobe large slightly emarginate. Spur short or 
obsolete. Stigma triangular. Rostellum obsolete but with 
a large globose appendage. Anth. terminal, 2-celled, open- 
ing transversely. Column elongated. Germen slightly 
stalked, straight. 
14. Malaxis. Perianth patent. Lip posterior, erect, entire, 
similar to the pet., smaller than the sepals. Spur 0. Stigma 
rhomboidal. Rostellum short, entire, acute. Anth. terminal, 
