Lissochilus. | CXXXIII. ORCHIDEÆ (ROLFE). 79 
Nile Land, British East Africa: Niamniam, North of the Ibba River, Schwein- 
furth, 3983! 
18. L. latus, Rolfe. Racemes 6-8 in. long, many-flowered ; base 
of scape not seen. Bracts ovate-lanceolate, acute, 3—5 lin. long. Pedicels 
3-1} in. long. Sepals oblong, obtuse, 8—9 lin. long. Petals broadly 
subspathulate, obtuse, 8-9 lin. long. Lip pandurate, oblong, 9—10 lin. 
long; side lobes short, broadly rounded; front lobe quadrate, obtuse 
or emarginate, undulate; dise with 3 crenulate keels, becoming elevated 
lamelle in front, and the lateral also broad and thick behind ; spur 
conical-saccate, 3-34 lin. long. Column clavate, 5 lin. long. 
Mozamb. Dist. British Central Africa: Lake Moero, Carson, 28! 
19. L. Wilsoni, Xolfe. Scapes 1-1} ft. high, slender, with a few 
short sheaths, Bracts ovate or ovate-oblong, acute, 2—3 lin. long. 
Pedicels 8-10 lin. long. Flowers white and pink. Sepals narrowly 
subspathulate, obtuse, 8—9 lin. long; lateral nearly free trom the foot 
of the column. Petals elliptical, obtuse, 7—8 lin. long. Lip pandurate- 
oblong, obtuse, undulate ; disc verrucose or villous-scaberulous in front ; 
ted broadly saccate, 1} lin. long. Column clavate, 4—5 lin. long ; foot 
short. 
Nile Land, British East Africa: Usongora, swampy plains, Wilson, 23! 
20. L. Millsoni, Rolfe. Scape 2-24 ft. high, with a few sheaths 
below ` racemes 6-8 lin. long, lax. Bracts linear-lanceolate, acuminate, 
4-11 lin. long. Pedicels 8-11 lin. long. Sepals lanceolate or oblong- 
lanceolate, acute, 11-13 lin. long. Petals oblong or elliptical-oblong, 
obtuse, or subacute, 10-11 lin. long. Lip trilobed or subentire, 
11-13 lin. long; side lobes narrowly oblong, obtuse, erect; front lobe 
suborbicular, obtuse, undulate ; dise with 3—5 slender keels behind and 
about 9 stouter crenulate ones on the front lobe; spur conical, obtuse, 
13-2 lin. long. Column clavate, 4—5 lin. long; foot half as long as the 
column. 
Upper Guinea. Western Lagos: Ilorin, on savannahs, Rowland! Yoruba, 
Ayorun, Millson, 86! 
Lower Guinea? Upper Congo, Dybowski ! 
21. L. purpuratus, Lindl. in Journ. Linn. Soc. vi. 133 (331 by 
error). ‘Tubers like kidney potatoes, in chains nearly a yard long.” 
(Barter.) Leaves elongate-linear, acute, 1-1} ft. long, 3-5 lin. broad. 
Scapes 3-44 ft. high, with several short sheaths below; racemes 
9-12 in. long, many-flowered. Bracts subulate-lanceolate, long 
acuminate, 3-1 in. long. Pedicels }-1} in. long. Flowers rose or 
flesh-coloured, with a purple lip. Sepals oblong, acute or subobtuse, 
a little undulate, 9-12 lin. long; dorsal a little shorter than the 
lateral. Petals ovate-oblong, obtuse, a little undulate, 9-12 lin. 
long, nearly twice as broad as the sepals. Lip trilobed, 10-12 lin. 
long; side lobes broadly rounded; front lobe ovate-oblong, obtuse ; 
disc with two prominent or muricate-tuberculate keels in the 
