Listrostachys.'] cxxxiii. ORCHiDEiF. (rolfe). 163 



0-12 in. long, many-flowered. Bracts ochreate, very short, broad, 

 truncate, almost obsolete. Pedicels 2 lin. long. Flowers yellow. 

 Sepals and petals oblong, obtuse, fleshy, 1| iin. long. Lip broadly 

 oblong ; apex tridentate or obtuse, fleshy ; spur curved, slender at the 

 base, 5 lin. long ; apex clavately inflated. Column very stout, J lin. 

 long ; stipites " linear, didymous." — Angr cecum vagans, Lindl. in Journ. 

 Linn. Soc. vi. 135. 



Itovrer Cruinea. Princes Island, Barter^ 1988 ! 



According to Barter, it covers many of the small islets which abound near the 

 shore, and has yellow and insignificant flowers. 



Allied to L. vesicata, Reichb. f., but the leaves are very different. Lindley 

 describes the lip as like the sepals and petals, but I find it broader and tridentate. 



33. Ij. thomensiSy Rolfe. Acaulescent. Leaves linear, 5-6 in. 

 long, 5-7 lin. broad. Racemes pendulous, 1 ft. long, many-flowered. 

 Bracts broadly ovate, H lin. long. Pedicels 3 lin. long. Dorsal sepal 

 elliptic-oblong, obtuse, 2 J lin. long; lateral oblong, subacute. Petals 

 linear, obtuse. Lip ovate, obtuse, 2 lin. long ; spur subclavate, slightly 

 curved, 4 lin. long. Column short ; pollen not seen. Capsule 

 pedicelled, triquetrous, curved, 4-5 lin. long. — Angrcecum thomense^ Bolfe 

 in Bolet. Soc. Brot. ix. 141. 



ILower Guinea. St. Thomas, Quintas ! 

 Allied to L. Iclinenmonea^ Reichb. f. 



34. L. ichneumonea, Reichb. f. in Gard. Chron. 1887, ii. 681 



{in note). Stems short, thick. Leaves oblong-lanceolate, coriaceous, 

 0-12 in. long, 1-1 J in. broad ; apex suboblique and subobtuse. 

 Racemes pendulous, slender, IJ-lJ ft. long, many-flowered. Bracts 

 broadly ovate, apiculate, f lin. long. Pedicels 2 lin. long. Sepals 

 ovate-oblong, subobtuse. Petals linear-oblong, subobtuse or apiculate, 

 2 J lin. long. Lip oblong, 2^ lin. long; apex shortly trilobed; front 

 lobe, oblong, obtuse ; side lobes broad, 3-toothed or somewhat truncate ; 

 spur curved, 8 lin. long, basal half slender, apical half inflated, clavate- 

 oblong, laterally compressed. Column stout, 3 lin. long ; pollinia with 

 2 slender stipites attached to a single gland. — Angrcecum ichneu- 

 ■moneum, Lindl. in Journ. Linn. Soc. vi. 136; Reichb. f. in Gard. 

 Chron. 1887, ii. 081. 



ITpper Guinea. Niger Delta : Banks of the Nun River, Mann^ 520 ! 



35. I*, vesicata, i?ezc^t6./. in Flora^ 18G5, 190. Stems very short. 

 Leaves elongate-linear, a little attenuate and subobtuse, subcuneate 

 below, 0-11 in. long, 5-10 lin. broad. Racemes slender, pendulous, 

 6-1 1 in. long, many-flowered. Bracts opposite, \ lin. long, each pair 

 united into a single, ochreate, truncate, amplexicaul body. Pedicels 

 2 lin. long. Flowers green, opposite. Sepals ovate, apiculate, \\ lin. 

 long, fleshy; dorsal broadly cucullate. Petals ovate-oblong, apicu- 

 late, fleshy, smaller than the sepals. Lip oblong or lineai-oblong, 

 subobtuse, fleshy, base broader and subauriculate, 1^ lin. long; spur 

 curved, slender at the base, apex obovoidly inflated, subcompressed, 



