DR. LINDLEY ON WEST AFRICAN TROPICAL ORCHIDS. 331 
GALEANDRA, Lindley. 
1. G. Gracixis, Lincl. Gen. & Sp. Orch. p. 187.—G. extinctoria, Ib. 
* Growing on the ground. R. Bagroo, April 1861.” (903) Mann. 
Exactly like our garden plant. G. extinétoria was described 
from an imperfect specimen, and must be cancelled. 
2. [G. LONGIBRACTEATA ; scapo valido medio vaginato, racemo laxo 
multifloro, bracteis linearibus acuminatis ovario æqualibus, sepalis 
petalisque lanceolatis secundis, labello trilobo basi verrucis 2 oblongis 
parallelis aucto: laciniis rotundatis lateralibus planis intermedia crispa 
venis quinque cristatis una parva adjecta utrinque ad isthmum. 
Sierra Leone, Whitfield. 
Leaves unknown. Stem 2 feet high. Near Galeandra euglossa, 
Rchb. f., the lip of which has acute lobes, and neither warts nor 
crested veins.] 
LissocHinvs, A. Br. 
1. L. LONGIFOLIUS, Bentham in Niger Flora, p. 530. 
* Flowers yellow. Stems 6 feet high, with a spongy creeping rhizome. 
Swamps, Nupe. (1486) Barter. Also Grand Bassi, Ansell. 
2. L. RosEvus, Lindl. in Bot. Reg. 1843, Misc. 37 ; 1844, t. 12. 
* Seven feet high, with pseudobulbous roots. Flowers reddish purple. 
Base of labellum streaked with orange." Margin of a swampy ravine, 
Loin Nupe, (1481; also 80 with no locality) Barter ; side of a rivulet 
near Pare, (3429) Id. 
3. L. ARENARIUS ; foliis hysteranthiis anguste ensiformibus, scapo gra- . 
cili laxe vaginato, bracteis setaceo-acuminatis ovario brevioribus, 
sepalis lanceolatis acutis carinatis reflexis, petalis subrotundis mem- 
branaceis, labello subquadrato medio constricto sacco supra basin 
conico, lamellis 2 cuneatis ad ostium sacci linea elevata interjecta. 
* Flowers purple. Base of labellum lined with orange. Flower-stems 
appear after the first. rains, in April; leaves later. Tuber large and 
flattened.” Savannahs in a sandy soil, abundant. (1488) Barter. 
A noble species, with the stature and appearance of Bletia vere- 
cunda. Petals full 2 inch long. 
4. L. PURPURATUS; foliis hysteranthiis, scapo stricto multifloro, brac- 
teis setaceo-acuminatis ovarii longitudine patentissimis, sepalis ob- 
longis acutis, petalis conformibus obtusis, labelli hypochilio rotundo 
epichilio angustiore repando undulato caleare brevi conico : lineis 3 
tuberculatis lateralibus basi appendiculatis, anthera apiculata. 
* Terrestrial; flower-spikes 3 to 4 fect high, appearing before the leaves. 
