IGO cxxxiii. ORCHiDEiE (rolfe). [Lislrostachys. 



longer than the lower. Racemes numerous, sometimes a little fas- 

 cicled, slender, many-flowered, 3-6 in. long. Bracts ovate, amplexi- 

 caul, obtuse, i-lh lin. long. Sepals and petals lanceolate, acuminate, 

 subequal, 3-4 lin. long. Lip obovate, cuspidate, as long as the sepals 

 but broader ; margin minutely fimbriate ; spur pendulous, 4 lin. long, 

 slender, a little stouter near the apex, subacute. Column stout ; 

 -stipites slender; pollinia obovate ; gland rounded. — Angrcecum acutum, 

 Ridl. in Bolet. Soc. Brot. v. 199, t. C. fig. b. 



I^ower Guinea. St. Thomas, Nova Moka, 2200 feet., Quintas, 3 ! 



Allied to L. aahantensis, Reich, f., but differs from all its allies in the shape and 

 details of the lip. 



23. L. subclavata, Rolfe. Plant caulescent. Leaves sessile, oblong, 

 4 in. long, \\ in. broad; base oblique, cordate on one side; apex 

 unequally and obtusely bilobed. Racemes a little longer than the 

 leaves, 16-20-flowered. Bracts minute. Pedicels 3 lin. long. Sepals 

 lanceolate, acute. Petals similar to but a little shorter than the sepals. 

 Lip broadly elliptic-ovate, acute, 3 lin. long ; margin denticulate ; 

 spur subclavate, 3 lin. long. Column short and stout. — Angrcecum 

 subclcivatum, Rolfe in Bolet. Soc, Brot. ix. 140. 



Iiower Grulnea. St. Thomas, Quintas ! 



Allied to L. ashantensls, Reichb. f. The flowers are in a young state. 



24. L. bidens, Rolje. Stems long and climbing, with strong 

 roots. Leaves oblong or ovate-oblong, obliquely and unequally bilobed, 

 with subacute or obtuse lobes, 2J-4J in. long, |-1 J in. broad. Racemes 

 slender, 3 ^-6 J in. long, many-flowered. Bracts broadly triangular 

 ovate, obtuse, |-| lin. long. Pedicels l|-2 lin. long. Flowers white. 

 Sepals lanceolate or elliptic-oblong, acute or subobtuse, 2 lin. long. 

 Petals a little smaller than the sepals. Lip broadly oblong or quadrate- 

 oblong, shortly trilobed at the apex, 2 J-2 J lin. long ; side lobes rounded ; 

 front lobe cuspidate and smaller ; spur about as long as the lip, clavate 

 or subclavate. Column stout, J lin. long. — Limodorum bidens^ Afzel. 

 ex Sw. in Yet. Acad. Handl. Stockh. 1800, 243 (name only) ; Pers. Syn. 

 ii. 521. 



Upper Guinea. Sierra Leone : near Wilberforce, 250 ft., on rocky banks by 

 stream side, Johnston, 101 1 and without locality, AfzeUus ! Gold Coast : Cape Coast 

 Castle, Vogel ! Cameroons : Barorabi, Freuss, 335 ! Bipinde, Zenker, 1062 ! Efulen, 

 Bates, 354 ! 



25. la. monodon, Reichb. f. in Walp. Ann. vi. 908. Stems not 

 seen. Leaves ovate-oblong, shortly and obliquely bilobed, 3 in. long. 

 1 in. broad. Racemes 3 in. long, many-flowered. Bracts broadly 

 ovate, apiculate, amplexicaul, h lin. long. Pedicels 2 hn. long. Flowers 

 reddish. Sepals and petals ovate-oblong, subacute, 2 lin. long. Lip 

 suborbicular, subconcave, 2 lin. long, with a short, blunt tooth near the 

 base ; spur slightly curved, subclavate, 3 lin. long. Column stout, 

 J lin. long ; pollinia on distinct, slender stipites ; rostellum subulate. 



