Epidendrece.} CXLVIII. ORCHIDE^. (J. D. Hooker.) 669 



tell urn, sessile or stipitate. Anther posticous. Pollinia granular. 

 Terrestrial herbs. 



KEY TO THE GENERA. 



TBIBE I. Epidendreao. 



Subtribe 1. MALAXED (and LIPARIDE^;, Gen. PI.), 



1. OBEEONIA. Epiphytic. Leaves distichous, fleshy, laterally compressed, 

 nerveless. Flowers very minute, in cylindric spikes or racemes'; column very 

 short. 



2. MICROSTYLIS. Terrestrial. Leaves membranous, base sheathing. ' Flowers 

 small. Column very short. 



3. LIPARIS. Terrestrial or epiphytic. Leaves membranous or coriaceous, base 

 sheathing. Flowers small or medium-sized. Column long. 



4. PLATYCLINIS. Epiphytic; pseudobulb 1 -leaved Flowers small; bracts 

 rigid, glumaceous, ribbed, margins convolute. Column long or short with long or 

 short membranous side arms. 



5. TIPUTAKIA. Terrestrial; pseudobulb 1 -leaved. Lip with a long spur. 



6. OREOECHIS. Terrestrial, 1-leaved. Sepals and petals suberect. Column 

 long. 



7. COEALLOEHIZA. Leafless. Boot coralloid. . Sepals and petals suberect. 

 Column long. 



Subtribe 2. DENDROBIE^E. 



* Inflorescence lateral on a leafy or leafless ( stem, or terminal, or from 

 the top of a ~L-%-leaved pseudobulb. 



8. DENDEOBFUM. Lip adnate to the produced foot of the column, contracted at 

 the- base or clawed, base erect and incumbent on the column, nat mobile. 



! * Inflorescence distinct from the pseudobulb. 



0. BULBOPHYLLUM. Eacemes or spikes elongate, rarely 1-fld. or umbelliform. 

 usually subequal, free. Lip jointed on the foot of the column and mobile. 



UNIPIA. Characters of Bulbophyllum, but anther turned away, from the 

 linn and dehiscing upwards. Flower spicate, coriaceous, concealed by the 

 con: ;ive bracts. 



11. CIRRHOPETALTTM. Flowers umbellate. Lateral sepals longer than the dorsal, 

 placed under the mobile lip or connate. 



12. TKIAS. Scape 1-fld. Sepals spreading equally. Anther produced into a 

 long appendage. Very small herbs, pseudobulbs 1-leaved. 



13. DKYMODA. Scape 1-fld. Lateral sepals far removed from the dorsal. 

 Pollinia connate in pairs. Pseudobulb small, 1-leaved; leaf caducousT 



14. MONOMERIA. Raceme long, lax-fld. ; flowers large. Lateral sepals broad, 

 far removed from the dorsal. Pseudobulb 1 -leaved ; leaf narrow, petioled, 

 coriaceous. 



15. DENDEOCHTLTJM. Flowers small, racemose. Sepals equal, spreading. 

 Pseudobulb 0, or on a rigid creeping stem ; leaf narrow. 



16. PANISEA. Scape slender, few-fld. Sepals snbeqnal. Lip very narrow, 

 with a long sigmoid claw. Pollinia 4, distinct. Pseudobulb narrow, crowded, 

 1-leaved. 



' 17. ACEOCHJENE. Scape loosely many-fld. Mentum saccate. Petals fimbriato. 

 Lip jointed on the base of the column. Pollinia 2, globose, connected by a gruuuiar 

 .appendage. 



