Platylepis. | CXXXIII. ORCHIDEZ (ROLFE). 185 
24-3 lin. long, with a bigibbous, saccate base, and an oblong, cucullate 
limb, adnate to the column for 2 its length, acute and recurved at the 
apex; calli 2, orbicular, in the basal sac of the lip. Column 24-8 lin. 
long, clavate.—Bolus in Journ. Linn. Soc. xxv. 187; Rolfe in Bolet. 
Soc. Brot. ix. 142; Bolus Ic. Orch. Aust.-Afr. i, t. 11. Motiophrys 
glandulosa, Lindl. in Journ. Linn. Soe. vi. 138. P. angolensis, Durand 
& Schinz, Conspect. Fl. Afr. v. 58. Diplogastra angolensis, Welw. ex 
Reichb. f. in Flora, 1865, 183. 
Upper Guinea. Fernando Po, 2000 ft., Mann, 1481! 
Lower Guinea. Princes Island, Barter, 1952! Quintas, 13! Angola: Golungo 
Alto; River Delamboa, among palms, Welwitsch, 672! 
found in Natal, if the Southern plant is really identical, as is generally sup- 
posed, : 
26. MANNIELLA, Reichb. f.; Benth. et Hook. f. Gen. 
DL iii. 605. 
Sepals and petals united nearly to the apex into a cylindrical tube, 
broader and somewhat galeate at the free apex. Lip with a slender, 
partially adnate claw, papillose above; limb broad, concave, not longer 
than the sepals; margin extended on either side of the base into a 
linear-clavate appendage, parallel to the claw. Column elongated, adnate 
to the perianth-tube, free for a short distance above, with a pair of: 
broad, serrulate, erect, terminal lobes or wings. Anther subsessile 
between the column wings, broad, concave, erect or somewhat incum- 
bent; cells distinct; pollinia loosely granular. Stigma anticous; ros- 
tellum short, broad, emarginate. Capsule oblong, erect.—A rather tall, 
terrestrial plant, with a short, simple stem, and stout, fleshy roots. 
Leaves radical, long petiolate, ovate; membranous. Flowers small, 
arranged in a slender spike. Bracts small and narrow. 
A remarkable West Tropical African monotype. 
_ 1. M. Gustavi, Reichb. f. Otia Bot. Hamb. ii. 109. Plant 2-2} ft. 
high. Leaves 4—5, radical, long petiolate, tufted ; limb broadly ovate, 
shortly acuminate, 2-43 in. long, 1-2} in. broad ; petioles 2-6 in. long, 
sheathing below. Scapes 2-2} ft. long; racemes elongate, 6-12 in. 
long, many-flowered. Bracts ovate-lanceolate, acuminate, 3-5 lin. long. 
Pedicels 3—4 lin. long. Perianth-tube slender, 2 lin. long; limb of the 
dorsal sepal ovate-oblong, obtuse, 1} lin. long; lateral ovate, obtuse, 
recurved or revolute, 1 lin. long. Limb of the petals ovate-oblong, 
obtuse, 1} lin. long. Limb of the lip fleshy, broadly rounded or some- 
what bilobed, 1 lin. long; base sagittately produced into a pair of 
linear-clavate, recurved, fleshy processes, } lin. long. Column united 
to the perianth-tube nearly to its apex ; free part clavate, 1 lin. long ; 
apex with a pair of short, obovate wings; rostellum similar to but 
broader than the column. 
Upper Guinea. Cameroon Mountains, 4000 ft., Mann, 1336! 
Lower Guinea. Island of St. Thomas: 3000 ft., Mann, 1097! San Pedro, 
3300 ft., Moller and Quintas! Angra de S. João, in Angolares, 300 ft., Quintas, 92! 
