Listrostachys. | CXXXIII. ORCHIDE (ROLFE). 159 
Only known to me from the original description, but apparently allied to the 
preceding. 
19. L. ashantensis, Keichb. f. in Walp. Ann. vi. 908. Stems tall, 
climbing, leafy, with stout roots. Leaves oblong or ovate-oblong, 
3-3% in. long, 10-13 lin. broad; apex very oblique but scarcely 
bilobed. Racemes axillary, slender, many-flowered, 3ł—4 in. long. 
Bracts broadly ovate, apiculate, amplexicaul, reflexed, 1 lin. long. 
Pedicels 2 lin. long. Flowers orange-buff. Sepals oblong-lanceolate, 
subobtuse, 24 lin. long. Petals smaller and narrower than the sepals. 
Lip broadly subpandurate, obtuse or apiculate, 2 lin. long; margins | 
crenulate and reflexed; spur subclavate, 3 lin. long, slightly curved 
and somewhat compressed. Column stout, ł lin. long; pollinia with 
2 clavate stipites and a small oblong gland; rostellum rostrate.— 
Angrecum ashantense, Lindl. in Bot. Reg. 1843, Misc. 56. 
Upper Guinea. Ashanti : cultivated specimen, Loddiges ! : 
Originally flowered with Messrs. Loddiges, in 1843. The sepals and petals are 
not galeate, as described by Lindley. 
20. L. Papagayi, Reichb. f. in Flora, 1865, 189. Stems tall, 
climbing, leafy. Leaves oblong or oblong-lanceolate, 34-5 in. long, 
}-1} in. broad ; apex oblique, more or less bidentate. Racemes axillary, 
slender, 34-4 in. long, many-flowered. Bracts broadly ovate, apiculate, 
ochreate at the base, 3 lin. long. Pedicels 2 lin. long. Sepals and 
petals lanceolate-subacute, 24 lin. long. Lip subpandurate-oblong, 
obtuse or apiculate, crenulate-undulate in front, 2} lin. long; spur 
ee slender, slightly curved, 44 lin. long. Column stout, } lin. 
ong. 
Lower Guinea. Princes Island: shady rocks on the peak of Papagayo, 3000 ft., 
Welwitsch, 629! Mann, 1148! 
Near L. ashantensis, Reichb. f., but differs in its narrow segments and long spur, 
Welwitsch notes the stems as “ pendulous, very slender, 10-12 ft. long.” 
21. L. Bakeri, Durand & Schinz, Conspect. Fl. Afr. e 48, 
Racemes slender, nodding, 5-6 in. long. Bracts very small, ochreate, 
obtuse. Pedicels 2 lin. long. Flowers 3-3} lin. diam. Lateral sepals 
slightly oblique, acute. Petals slightly smaller than the sepals, spread- 
ing; margin entire, not denticulate. Lip cordate-ovate, truncate- 
emarginate, 2 lin. long, slightly broader, denticulate at the sides ? disc 
with a small, recurved tooth at the base; spur descending, straight, 
compressed, obtuse, nearly twice as long as the lip, constricted at the 
base. Column short : rostellum long, linear.—Angrecum Bakeri, 
Kränzl. in Mitth. Deutsch. Schutzgeb. ii. (1889) 159. 
Upper Guinea. Cameroons, Braun. 
Allied to L. ashantensis, Reichb. f., but differs amongst other characters in the 
shape of the lip. I have not seen it. 
22. L. acuta, Rolfe. Plant caulescent. Stem elongate. Roots 
long, stout. Leaves oblong or ovate-oblong, shortly and obliquely 
bilobed, obtuse, 3-4 in. long, 7-12 lin. broad; upper lobe 4-5 lin. 
