Listrostachys. | CXXXIII. ORCHIDEE (ROLFE). 165 
long. Lip broadly oblong, obtuse, 3 lin. long. Spur 34 lin. long, 
slender at the base, suddenly bent and obliquely inflated into an ovate- 
oblong, subacute sac. Column stout, 1 lin. long. 
Mozamb. Dist. German East Africa: Usambara, at Magila, banging from a 
tree over a waterfall, in a dark forest, Kirk ! 
In the shape of the spur this much resembles the preceding, but it is very different 
in other respects, 
39. L. urostachya, Kränzl. in Engl. Pf. Ost-Afr. C. 158, 
Stems rather stout. Leaves about 7 lin. distant, linear-oblong, 
obtuse, obscurely bilobed, 4-43 in. long. Spikes elongate, with a few 
scales at the base, the upper part developed gradually after the lower 
flowers expand. Bracts triangular, retuse, shorter than the ovary. 
Flowers amongst the smallest in the genus, verticillate. Sepals and 
petals rounded, obtuse, concave. Lip broadly ovate, obtuse; spur 
filiform, slightly curved, stoutish, much longer than the ovary.—Krinzl. 
in Engl. Jahrb. xxii. 29. 
Mozamb. Dist. German East Africa: Usambara, Holst, 4001. 
Only known to me from the original description, but said to differ from L. pertusa, 
Reichb, f., in the length of the internodes and spur. 
40. L. Virgula, Rolfe. Stems ascending, straight, 10 in. long, 
many-leaved. Leaves linear, chartaceous; apex unequally bilobed. 
Racemes much shorter, few-flowered ; rhachis very flexuous. Bracts 
minute, triangular, acute. Flowers scarcely 1 lin, diam. Dorsal sepal 
ovate, cucullate ; lateral much larger than the dorsal, triangular, pro- 
duced behind into a small, obtuse, chin-like process. Petals linear- 
oblong, acute. Lip minute, triangular, cucullate ; base funnel-shaped, 
gradually extending into a curved, fairly stout spur, 5 lin. long. 
Column stout; rostellum 2-armed; pollinia not seen.—Angrecum 
Virgula, Kränzl. in Engl. Pü. Ost-Afr. C. 157; Kränzl. in Engl. 
Jahrb. xxii. 27. 
Nile Land, British East Africa: Ruwenzori, 8200 ft., Stuhlmann, 2336. 
Only known to me from the original description, but said to somewhat resemble 
L. subulata, Reichb. f. in habit, 
41. L. graminifolia, Kränzl. in Eng. PA. Ost-Afr. C. 158. Stems 
short, thick, fusiform. Leaves very narrowly linear, 10 in. long, 1-1} 
n. broad. Racemes flexuous, few-flowered. Bracts minute, triangular. 
Flowers white, 11 lin. diam. Sepals narrow, very acuminate from an 
ovate base. Petals similar to, but only half as large as, the sepals. 
Lip like the sepals, but a little broader; spur very slender, filiform, 
elongate, five times as long as the sepals. Column short ; rostellum 
deflexed, dilated at the apex into a shield-like surface; gland large, 
Scutelliform ; stipites 2.—Kriinzl. in Engl. Jahrb. xxii. 29. 
Mozamb. Dist. German East Africa: Usambara ; Mbaludorf, on trees, 5900 ft., 
Holst, 2607, 
Only known to me from the original description, but remarkable for the shape of 
the rostellum. 
