140 CXXXIII. ORCHIDEX (ROLFE). [ Angrecum. 
tipped with light buff. Lip lanceolate-oblong, acute ; margin and apex 
slightly reflexed, a little broader than the petals; spur slightly curved, 
gradually tapering to the apex, 9-10 lin. long. Column clavate, 2} lin. 
long, white; wings very short, broad, and truncate; rostellum curved, 
slender, capitate ; stipes of pollinia very slender.—4A. elegans, Rolfe in 
Bolet. Soc. Brot. ix. 140, 
Lower Guinea. St. Thomas, Henriques, garden specimen ! 
Originally flowered in the Coimbra Botanic Garden in 1889. It is about half the 
size of A. bilobum, Lindl. 
15. A. arachnopus, Reichb. f. in Bonplandia, 1854, 93. Racemes 
over 1 ft. long, filiform, few-flowered, subflexuous. Sepals and petals 
linear-lanceolate, acuminate. Lip about as long as the petals; spur 
filiform, twice as long as the pedicels. Column slender; stigma central, 
limb underneath the stigma entire; anther obtuse, conical, limb of 
androclinium subentire-— Walp. Ann. vi. 905. 
Upper Guinea. Gold Coast, Schiller, garden specimen. 
Flowered in the collection of Consul Schiller in 1854, Only known to me from 
the original description, in which it is said to be allied to 4. bilobum, Lindl., but to be 
twice as slender. 
16. A. gracillimum, Kränzl. in Engl. Jahrb. xvii. 59, t. 5, 
figs. B-H. Roots long and slender. Stems very short, about 5-leaved. 
Leaves obovate-oblong, 34-5 in. long; base attenuate; apex minutely 
and unequally bidenticulate. Racemes pendulous, very slender, 1-1} ft. 
long, few-flowered. Bracts small. Pedicels slender, 1} in. long. Sepals 
linear—lanceolate, very acuminate, 2 in. long, spreading. Petals slightly 
narrower than the sepals, in other respects similar. Lip like the 
petals but subcordate at the base, 14 in. long; spur very slender, clavate 
at the apex, 8 in. long. Column very slender, subclavate at the apex, 
apiculate, 10 lin. long ; rostellum produced into a subulate tooth. 
Upper Guinea. Cameroon Mountains, in the primeval forest west of Barombi- 
ba-Mbu, Preuss, 459. 
Remarkable for its very long, slender column. The pollinia were missing from the 
specimen described and figured. 
17. A. rhodostictum, Kränzl. in Notizdl. K. Bot. Gart. Berlin, 
1896, 154. Stems short, with numerous roots, 6-leaved. Leaves 
linear-lanceolate, 2-5 in. long, 2-5 lin. broad, apex very unequally 
lobed. Racemes arching or pendulous, 1 ft. long, many-flowered. 
Bracts ovate-oblong, obtuse, 14-24 lin. long. Pedicels 6-8 lin. long. 
Flowers white. Dorsal sepal elliptic-oblong, apiculate, 5—6 lin. long; 
lateral oblong, apiculate, 6 lin. long. Petals obovate, elliptic, apicu- 
late, 6 lin. long. Lip broadly rhomboid-elliptic, apiculate, 8-9 lin. 
long; spur curved, slender below, slightly thickened above, 11-1} in. 
long. Column stout, 14 lin. long. 
irda Guinea. Cameroon Mountains, Yaunde, 2600 ft., Zenker & Staudt, 
dot. 
Nile Land. Somaliland: between Alghe and Oi, Ruspoli-Riva, 1360. 
