150 OXXXIII. ORCHIDEÆ (ROLFE). [Angræcum. 
46. A. cæspitosum, Folfe. Stems very short, leafless, with tufts 
of long flexuous roots. Racemes very short, tufted, 2 in. long, several- 
flowered. Bracts small, triangular-ovate, acute, } lin. long. Pedicels 
4-5 lin. long. Sepals ovate, subobtuse, membranous, with a green 
keeled middle nerve, 13-2 lin. long. Petals similar but not keeled. 
Lip with a spreading, ovate, subacute limb, 1—14 lin. long; spur linear, 
somewhat broader below, 44 lin. long. Column stout 14 lin. long. 
Capsule fusiform-oblong, slenderly pedicelled, 7—8 lin. long. 
Upper Guinea. Cameroons: Efulen, on twigs of a fallen tree in the forest, 
Bates, 353! 
Allied to the Madagascar A. Gilpine, Reichb. f. and S. Moore. 
47. A.megalorrhizum, Reich). f. Otia Bot. Hamb. ii. 117. Plant 
leafless. Stem very short. Roots very long, branched and verrucose, 
sometimes over 1 ft. long. Racemes fascicled, slender, 3-5 in. long. 
Bracts triangular, acute, 3 lin. long. Pedicels 14 lin. long. Sepals and 
petals oblong-lanceolate, subacute, 24 lin. long. Lip 24 lin. long, ovate, 
subobtuse or apiculate, slightly crenulate, narrowed at the base ; spur 
narrowly conical, slightly curved, 14-2 lin. long ; apex slender. Column 
nearly 1 lin. long, with deflexed, subulate rostellum. Capsule elliptic- 
oblong, 2 in. long. 
Mozamb. Dist. British Central Africa: Shire Valley, Waller! Shibisa (Chik- 
wawa), Shire River, Kirk! Nyasaland, Buchanan, 1262! 
48. A. aphyllum, Zhou. Orch. Iles Afr. t. 73. Stem tall and 
climbing, leafless, with numerous long flexuous roots. Racemes numerous, 
3—1 in. long, many-flowered. Bracts triangular-ovate from a broader 
base, subacute, }—} lin. long. Pedicels slender, 24-3 lin. long. Flowers 
white, becoming reddish in drying. Sepals and petals elliptical-oblong, 
subobtuse, 1} lin. long. Lip with a spreading triangular-oblong, sub- 
obtuse, concave limb, 2 lin. long; spur 24 lin. long, strongly curved, 
narrowed to the middle, broader at the apex. Column stout, 1 lin. long. 
Capsule elliptic-oblong, slenderly pedicelled, 24 lin. long.—S. Moore 
in Baker, Fl. Maurit. 358. Gussonia aphylla, A. Rich. Orch. Maurit. 
76, t. 11, fig. 1; Ridl. in Journ. Linn. Soc. xxi. 492. Saccolabium 
aphyllum, Lindl. Gen. & Sp. Orch. 223. Mystacidium aphyllum, 
Durand & Schinz, Conspect. Fl. Afr. v. 51. 
Wile Land. British East Africa: Mombasa, Kirk! Giryama and Shimba 
Hills, Taylor ! 
Also found in Mauritius and Madagascar. 
18. LISTROSTACHYS, Reichb. f. in Bot. Zeit. 1852, 930. 
Sepals and petals subequal, free, spreading or subconnivent. Lip 
affixed to the base of the column and continuous with it, produced at 
the base into a long or sometimes very long spur ; side lobes small, or 
obsolete, at the sides of the spur; limb spreading or erect, entire oF 
obscurely trilobed. Column very short, broad, concave in front, without 
