1C8 cxxxiii. ORCHiDE/K (rolfe). [Listrostockys . 



49. L. forcipata, Krdnzl. in Engl. Jahrh. xix. 254. Plant very- 

 small. Rootlets numerous, much longer than the very short stem. 

 Leaves ensiform, narrowly compressed, acute, straight or slightly curved, 

 4 in. long, 5 lin. broad. Racemes much shorter than the leaves, few- 

 fiowered, apparently secund. Bracts triangular, acute ; base more or 

 less clasping the slender pedicel and three or four times as short as it. 

 Flowers J in. long, 2 J lin. broad. Dorsal sepal oblong ; lateral obovate ; 

 all very obtuse. Limb of the lip nearly obsolete, so that nothing 

 remains but the large, infundibuliform spur, which is entire at the 

 mouth, attenuate below, and contracted, then expanding into a deeply 

 bifid or forcipate apex. Column broadly margined, nearly cucullate ; 

 anther flat ; apex much produced ; stipites free ; gland elongate, 

 rectangular ; rostellum broad, retuse. 



Upper Guinea. Cameroons : Primaeval forests West of Buea, 4200 ft., 

 Preiiss. 



Said to be one qi the smallest species of the genus, much resembling a small 

 Oncidium iridifolium, Lindl., in habit. I have not seen it. 



50. L. dactyloceraSy Reichh.f.in Floi^a, 18G5, 190. Plant about 

 ?) in. high. Stems short, stout, 1-1 J in. long, o-4-leaved. Leaves 

 equitant, ensiform, very fleshy, subobtuse or scarcely apiculate, 1 J in. 

 long. Racemes capitate ; rhachis very short. Bracts ovate or ovate- 

 oblong, subobtuse or apiculate, 1-1 J lin. long. Pedicels slender, 4-0 

 lin. long. Sepals and petals broadly oblong or suborbicular, membranous, 

 subequal, Ij-lf lin. long. Lip with a short, broad claw, 1 lin. long; 

 limb ovate, obtuse, crenulate, 1^ lin. long ; spur narrowly infundibuli- 

 form-oblong, slightly narrowed above the middle, '3|-4 lin. long ; apex 

 slightly broader, subcompressed and obscurely tridenticulate. Column 

 stout, J lin. long; rostellum subulate, deflexed into the spur, longer 

 than the column ; pollinia with distinct, slender, curved stipites, 1 lin. 

 long. 



IiO-wer Guinea. Angola : Pungo Andongo ; near the large waterfall of the 

 river Cuanza, between Quisonde and Condo, and in the Island of Calemba, Welwitsch, 

 G77! 



A very distinct species, much like a Saccolahitim in the flowers, but the pollen is 

 that of a Listrosiacliys. 



51. L. subulata, Reichh. f. ex Krdnzl. in Engl. Jahrh. xxii. 28 

 (in note). Stems slender, more or less curved, 3-12 in. long. Leaves 

 terete, subulate, slender, acute, lJ-5 in. long; sheaths transversely 

 rugose. Bracts ovate, subobtuse, | lin. long. Pedicels Ih lin. long. 

 Flowers few and fasciculate or solitary, white. Sepals elliptic-oblong, 

 subobtuse, 1 J lin. long. Petals lanceolate-oblong, subobtuse, as long as 

 the sepals. Lip broadly ovate, concave, subobtuse or apiculate, 2 lin. 

 long ; spur falcate-incurved, subclavate, 2 lin. long. Column very short ; 

 pollinia subsessile, separately attached to a broad gland. — Angrcecum 

 s?cbitlatum, Lindl. in Hook. Comp. Bot. Mag. ii. 20G. 



Upper Guinea. Sierra Leone : Samu, on old trees in mangrove swamps, Scoif- 

 Elliot, 4334! and without precise locality, Afzelitis ! Loddiges ! Niger Delta: Nun 



