orchideje. (S. Moore.) 
329 
Labellum large, deeply lobed or incised, with, a long 
clavate spur. Stigmatic lobes projecting down- 
wards at the base of the cplumn 3. Habenaria. 
Labellum small ; spur short. Stigmatic lobes on 
the inner side of the arms of the anther, confluent 
with the column 4. Peristylus. 
Arms of the anther parallel ; stigmatic lobes on their 
outer side. 
Anther-arms elongate, terete; rostellum projecting 
between them, thick and fleshy 5. Cynorchis. 
Anther-arms short, flat ; rostellum linear, mem- 
branous 6. Amphorchis. 
Arms of the anther parallel ; stigmatic lobes at the front 
of the upper part of the column 7. Arnottla. 
Tribe II. Operculat^e. Anther on the top or back of the 
column ; cap lid-like, persistent or cast off by removal of the pollen- 
masses. 
Sub-tribe I. Neottie.®. Anther-cap persistent; pollen-masses 
granular or powdery. Terrestrial herbs. 
Labellum with calli on the inner face. Column 
elongate 8. Platylepis. 
Labellum without calli. Column short t 9. Goodyera. 
Sub-tribe II. Etjoperculat.e. Anther-cap cast off by removal of 
the pulverulent mealy or waxy pollen-masses. Terrestrial, epiphytic, 
or saxicolous. 
Section a. Arethusea;. Pollen-masses pulverulent or mealy, with- 
out any prolongations. Terrestrials. 
Small, slender, leafless, 1 -flowered. Labellum convolute 
round the column 10. Aplostellis. 
Section / 3 . Malaxideje. Pollen-masses waxy, without any pro- 
longations. Epiphytic, rarely terrestrial. 
Stem erect or ascending. Column not produced at base. 
Leaves distichous. Labellum free from the column . . .11. Oberonia. 
Leaves not distichous. Labellum adnate to the lower part 
of the column 12. Liparis. 
Stem horizontal, creeping. Labellum tongue-like, adnate to 
the produced base of the column 13. Bulbophyllum. 
Section y. Epidendre^e. Pollen-masses waxy, with tail-like pro- 
longations, free or united together into a caudicle or caudicles, but 
without a viscid gland. Epiphytes or terrestrials. 
Labellum convolute round the column. Pollen-masses 
8, the tails united to form a short broad 
caudicle 14. Phajus. 
