Lissochilus. | CXXXIII, ORCHIDE (ROLFE). 
Disc of lip one-keeled above the 
middle . e 
Expanded flowers 1 in. diam, 
Dise of lip with 3-5 obscurely 
crenulate keels - 
Disc of lip with 1-3 thickened 
keels 
Spur about 1 lin. long, Jess than a 
fourth as long as the side lobes. 
Side lobes of lip 3 lin. broad; 
front lobe scarcely convex 
- 58. 
a biel. 
53005 L 
. Krebsii. 
. Rueppellii. 
. shirensis. 
near the base . . 61. L. ruwenzoriensis. 
Side lobes of lip 2 lin. broad ; 
front lobe very convex near 
the base. 
Sepals acute e S . 62. L. oliverianus. 
Sepals obtuse . ` . 63. E. Kikir. 
tł Expanded flowers 3 in. diam, . 64. L. micranthus. 
Spur reflexed at the apex . 65. L. Stuhlmanni. 
+tSepals about half as long as the petals. 
Spur under 3 lin. long. 
Lip pandurate-oblongor obscurely trilobed. 
Lip 6-7 lin. long; disc scarcely gib- 
bous. 
Front lobe of lip obtuse. 
Leaves 3-1 in. broad. 
Front lobe of lip half as broad as 
the petals. 
Disc of lip with 9 thick keels 66. L, calopterus. 
Dise of lip with 5-7 smooth 
keels . . 67. L. Volkensii. 
Front lobe of lip not half as 
broad as the petals . . 68. L. Taylori. 
Leaves 3—5 lin. broad . . 69. L. graniticus. 
Front lobe of lip acute or sub- 
acute. 
Front lobe of lip oblong, with 
many keels 5 . 70. L. Mechowii. 
Front lobe of lip ligulate, with 
5 lamelle . . 71, L. orthoplectrus, 
Lip 8-11 lin. long; dise distinctly gib- 
bous . ` 2 S . 72. L. Wakefieldii. 
Lip distinctly trilobed. 
Side lobes of lip 2 lin. long S . 73. L. brevisepalus, 
Side lobes of lip 3 lin. long a , 74, L. Rendlei. 
Spur 3 lin. or more long. 
Side lobes of lip under 2 lin. long. 
Gibbosity of front lobe of lip regularly 
curved (Angolan species) e ag 
Gibbosity of front lobe of lip very ob- 
lique (Zambesi species) DL 
Side lobes of lip 3 lin. or more long. 
Sepals acute. 
Front lobe of lip very strongly gib- 
bous, 
. aurantiacus. 
L. Holubi. 
