CXXVII. ORCHIDE^. 1515 



Tribe I. Epidendreae. ^^nt/ter 1, opercular, usually deciduous, cells parallel distinct. 



Pollen-masses wci.vy, I to i in each cell, free, or those of each cell held together at the base 



liy a visced appendage, not attached by their bases or by a caudicle to the rostellmn (in some 

 •Calogynete the long bases of the pollen-masses resemble caudicles). 



SuBTRiBE 1. nialaxese and (Xiiparideae, Gen. PI.) — Stems simple leafy, rarely leafless, 

 with often a, pseudo-bulbous base. Inflorescence terminal. Flowers small or minute. Anther 

 ■erect or inclined, us^ially persistent, not incumbent. Pollen-masses i (or 8), subequal, close 

 together, jisualhj free (iHthoitt a viscid appendage). 



Epiphytes. Leaves distichous, fleshy, laterally compressed, nerveless- 

 Flowers very minute in cylindrical spikss ot racemes. Column very short 1. Obeeonia. 



Terrestrial. Leaves membranous, base sheathing. Flowers small. 



Column very short 2. Miceostylts. 



Terrestrial or ejjiphytic. "Leaves membranous or coriaceous, base sheathing. 



Flowers small or medium-Sized. Column long 3. Lipakis. 



SuBTEiBE 2. Dendrobies. — Inflorescence terminal, lateral, or on. a leafless scape. 

 Pollen-masses 4, rarely 2, 1-seriate, parallel, no appendage {except in Osyrioera.) 



Labellum with a broad erect base usually expanded into lateral lobes. 



Stems or psuedo-bulbs bearing both leaves and peduncles (except the 



sect. Rhizohium) 4. Dendeobium. 



Labellum distinctly unguiculate, not lobed. Leaves (on pseudo-bulbs) and 



peduncles from distinct nodes of the rhizome . 5. BuLBOPHrLLUii. 



Flowers umbellate. Lateral sepals longer than the dorsal, placed under 



the mobile lip or connate 6. Cirehopetalum. 



'Sspals subequal, lateral ones connate far up. Labellum ventricose near 



the bise. Anther with appendage 7. Osyeicera. 



SuBTRiBE 3. Erieae. — Inflorescence lateral, or on a leafless scape. Pollen-masses 8 

 ■subequal, appendage none or obscure. 



.Peduncles from 1 to many-flowered, axillary or subterminal or on a leafy stem 

 or on a pseudo-bulb. Column short, produced into a foot. Habit very 

 various . . . 8. Eria. 



Peduncles late;al or from a leafless rootstock, flowers minute. Column 



very short, produced into a foot. Stem short, leaves distichous .... 9. Phreatia. 



:Scape distinct from 1 to 2-leaved pseudo-bulb. Sepals spreading. Column 

 elongated, foot none. Capsule ereet or nodding. ' Leaves elongate 

 plaited 10. Spathoglottis. 



SuBTHiBE 4. Bletiese. — Inflorescence usually lateral. Pollen-masses 8, usually in 2 

 ■series, parallel, ascending, connected by a glandular appendage. 



Flowers large racemous. Sepals free. Labellum spurred, lateral lobes 

 embracing the long column which is not produced into a foot. Leaves 

 often large plaited 11. Phaius. 



SuBTRiBE 5. Caelog'ynese. — Inflorescence terminal. Pollen-masses 8 or 4, subequal, 

 ■connected by viscus or an appenda.ge [in Calanthe, tlie pollen-masses are appendaged, but the 

 ■appendage is an undeveloped portion of the pollen itself, and is not derived from the 

 rostellum.) 



-Pseudo-bulbs 2-leaved, solitary or superposed. Labellum saccate. Column 

 "' short, broadly 2-winged ; pollen-masses 4. Peduncle sheathed . . .12. Pholidota. 

 'Terrestrial ha'bs. Leaves plicate, produced after the racemose flowers. 



Labellum usually spurred, claw connate into a tube with the column . 13. Calanthh. 



Tribe II. Vandeae. — Anther 1 ; posticous, opercular, resting on the rostellum, cells usually 

 'Confluent. Pollen-masses .waxy, usually 2 or i in superposed pairs, attached singly or in pairs 

 ■to a gland or process of the rostellum which is carried away with them when they are removed. 



SuBTEiBE 1. Eulophieae. — Leaves on pseudo-bulbs, plaited and nerved. Scape leafy 

 ■or not. Labellum spurred. 



Scape usually leafless. Petals like the dorsal sepal. Labellum gibbous or 

 saccate, rarely spurred. Gland of the rostellum usually produced into a 

 stipes 14. Eulophia. 



SuBTBiBE 2. Cymbidieae. — Leaves on pseudo-bulbs, plaited and nerved. Scape leafy 

 ■or leafless. Labellum not spurred. Column notproduced into afoot. 



Sepals and petals subequal, spreading. Lobes of the labellum embracing 

 the unwinged column. Pollen-masses with a transverse granular 

 appendage. Leafy stems short, pseudo-bulbous 15. Cyjibidium. 



