44- ORCHID ACE AE I57 



Leaves with conduplicate praefoliation (i.e. folded together along the mid- 

 rib in the bud, their edges being applied to each other without over- 

 lapping). Mostly epiphytic herbs 73 



66. Pollen-masses 2 — 4, without appendages, attached to the glands of the 



lostellum by a stalk produced from the latter. Leaves usually jointed. 



[Tribe CYRTOPODIEAE.] 67 



Pollen-masses 8, appendaged, without a stalk produced from the rostellum. 

 Leaves usuall}^ continuous. [Tribe PHAIEAE.] 71 



67. Lip produced into a spur or pouch at the base 68 



Lip without a spur or pouch 69 



68. Sepals narrower and less coloured than the petals, usually reflected. Petals 



erect or spreading. — Species 90. Tropical and South Africa. Some 



are used as ornamental plants Lissochilus R. Br. 



Sepals and petals equal or nearly so, spreading. — Species 130. Tropical 

 and South Africa. Some species yield medicaments (salep) and mucilage 

 or serve as ornamental plants. (Including Cyrtopera Lindl. and Ortho- 

 chilus Höchst.) Eulophia R. Br. 



69. Column with 2 basal lobes projecting upon the base of the lip. — Species 4. 



East Africa Pterogiossaspis Reichb. fil. 



Column without appendages 70 



70. Lip and lateral sepals inserted on the foot of the column, the former with 



a narrow, the latter with a broad base. — Species i. Madagascar. 



Eulophiella Rolfe 

 Lip inserted on the foot of the column, the lateral sepals on the margin 

 of the ovary, both with a narrow base. — Species i. Madagascar and 

 Mascarene Islands. The pseudobulbs yield mucilage. 



Cyrtopodium R. Br. 



71. Leaves jointed at the upper end of the sheath. Inflorescence 2 — 3-flowered. 



Lip slightly saccate. Colum rather long, with short, roundish wings. 

 Pollen-masses affixed to a single appendage. — - Species 2. West Africa. 

 Used as ornamental plants. (Under Pachystoma Reichb. fil.) 



Ancistrochilus Rolfe 



Leaves not jointed. Inflorescence usually many-flowered. Lip clasping 



the column or adnate to it, usually spurred 72 



72. Lip adnate to the column ; blade spreading, 3 — 4-lobed. Column short. — 



Species 9. Tropical and South Africa. Some are used as ornamental 



plants Calanthe R. Br. 



Lip free, clasping the column or broadly conca\'e at the base. Colunm 

 slender. — Species 7. Madagascar and neighbouring islands. West 

 Africa. Some are used as ornamental plants or yield dye-stuffs. 



Phaius Lour. 



73. (65.) Leafy stems with indeterminate apical growth ; side-shoots weakly 



developed or wanting. Inflorescences or solitary flowers axillary. 

 Epiphytes without pseudobulbs. Lip continuous with the base of the 

 column. [Tribe SARCANTHEAE, subtribe aeridinae.] . . 74 



