a: 
6a. 
i 
8a. 
9a. 
10. 
10a. 
Lateral sepals with column-foot do not form an observable 
mentum; column-foot very short, subequal in length to 
COMIN? HP PandUrate: 240064544400 vne dels 4. Lyroglossa 
Lateral sepals with free part of column-foot form either a 
mentum or a tubular, spur-like extension; column-foot 
much longer than column; lip never pandurate ....... 6 
Stigmata bilobed, more or less separated from one another 
by terminal edge of a distinct fold running full length on 
PACS OP COMIN ie eyes tea wa bean es ene Rea ee 7 
Stigmata confluent, semicircular on top of terete column 
P Seeetininb tard cea nls peewee na ew eee ie ee 5. Sacoila 
Lateral sepals with column-foot form a short, protruding 
CHIN: NEVEr SPUL-IKE 2.2 d6ssseececwewawes 6. Pteroglossa 
Lateral sepals with free part of column-foot form a pendu- 
lous, spur-like process .................. 7. Eltroplectris 
Stigmata 2, lateral on both sides of rostellum, large saddle- 
shaped, surpassing the foveate-truncate rostellum in height; 
petals free from dorsal sepal; lip with a deeply biparted, 
coarsely lacerate, terminal lobe; flowers always resupinate, 
i.e., the lip is uppermost in position ..................0. 
patee dai aeian ved ee bar hexsn eee aae en 8. Pseudocranichis 
Stigmata 2, always beneath the terminal rostellum; petals 
agglutinate with dorsal sepal; lip always without a coarsely 
lacerate terminal lobe; flowers resupinate, i.e., the lip is in 
lowermost position; this position may be obtained either 
through twisting of the ovary, arching of the inflorescence, 
or through the pendulous habit of the plant .......... 9 
All three sepals connate basally, forming a distinct tube- 
like, often cylindrical nectary ..............c0.c eee. 10 
Dorsal sepal free from, or rarely connate a negligible dis- 
tance with lateral sepals, never forming a cylindrical nec- 
tary, in exceptional cases, it may be likened to a shallow 
OP ican aee ener ter sslece cece hr asdoer head aw aw iees 17 
Column free from sepaline tube; rostellum elongate, 
oblong-linear; claw of lip short, free from sepaline tube 
Se et ere eee a ere Fee eee ern eS 9. Cyclopogon 
Column partially adnate to dorsal sepal; rostellum short, 
triangular in outline; lip either sessile or with a long claw 
which is adnate to sepaline tube .................... 1] 
291 
