MOUNT RORAIMA IN BRITISH GUIANA.' ^ 49 
^ Stem twining, 14-14 lin. thick, puberulous. Leaves opposite, very distant, 24-34 in. 
long, 11-2 in. broad, oblong, obtuse, apieulate, cordate at the base, scaberulous above, 
finely greyish-tomentose beneath, reticulated with dark veins; petiole 14-2 lin. long, 
puberulous. Racemes axillary, from one axil, 2-3 in. long, including the 3 in. long 
peduncle, many-flowered, densely puberulous in all parts. Bracts about 2 lin. long, 
18-13 lin. broad, oblong or oblong-lanceolate, acute, thin, spreading, deciduous. 
Pedicels alternate, 2-3 lin. long, moderately stout. Calyx-lobes 14 lin. long and nearly 
as broad, ovate, acute, each with an ovate acute slightly toothed scale at its base inside. 
Corolla about 2 in. long, funnel-shaped, curved, 5-lobed, pubescent outside, densely 
bearded with deflexed white hairs at the insertion of the stamens within, elsewhere 
glabrous; the lower half of the tube is slightly inflated at its base and there about 
22 lin. diam., narrowed above to 14 lin. diam.; the upper half much enlarged, funnel- 
shaped or subeampanulate ; lobes about 2 in. long, hatchet-shaped, one side being dilated 
into a large subquadrate, obtusely rounded, membranous lobe. Stamens 5, included, 
inserted at the top of the narrow part of the tube; filaments short, flat, linear, densely 
bearded on the inner face ` anthers 21 lin. long, linear-oblong, acute, shortly cordate at 
the base, connate, adnate to the stigma. Disk tubular, j lin. deep, 5-crenate. Ovary 
pubescent; style about 14 in. long, very slender, glabrous ; stigma conical, 5-winged. 
Tolimbaru Creek near Mount Roraima, Me Connell & Quelch, 146. 
ASCLEPIADACE. 
DrrAssA TAXIFOLIA, Decne. in DC. Prod. viii. p. 578. 
Kotinga Valley, McConnell & Quelch, 165, 166. Ireng Valley, McConnell & Queleh, 
323. 
LOGANIACEÆ. 
BONYUNIA MINOR, N. E. Brown, sp. n. (Plate 9, figs. 1-5.) 
opposita, approximata, breviter petiolata, coriacea, rotundato-ovata, subacuta, basi 
rotundata vel leviter cordata. Cymæ subdensæ, ramulis puberulis, floribus sessilibus 
bracteolatis. Calyx campanulatus, minute puberulus, dentibus deltoideis subacutis. 
Corollæ tubus subcylindricus, extra pubescens, intra parte inferiore puberulus, 
superiore glaber; lobi patentes, recurvi, superne carinato-incrassati, superne 
etiam carina et marginibus puberuli, area basali triangulare glabri. Ovarium 
breviter pilosum, stylo pubescente, stigmate bilobo. B 
A shrub. Branches terete, glabrous, dark brown. Leaves opposite, subimbricate, 
ascending, shortly petiolate, coriaceous, glabrous; petiole 1 lin. long; blade 2-12 in. 
long, 1-1 in. broad, roundish-ovate, subacute, broadly rounded or slightly opge at the 
base, with prominent veins beneath. Cymes terminal, rather dense, 1-1} in. diam., 
with puberulous branches 2-4 lin. long. Flowers sessile, bracteolate. Bracteoles 
2-1 lin. long, linear or oblong-lanceolate, obtuse, minutely puberulous. Calyx er | 
14 lin. long, campanulate, puberulous, with 5 deltoid subacute teeth. EEN tu oy 
with 5 spreading recurved lobes; tube 34 lin. long, subcylindrie, pubescent outside, 
puberulous within in the lower 3, glabrous above; lobes about 23 lin. long, spreading, . 
e | 
Frutex glaber. Folia 
SECOND SERIES.—BOTANY, VOL. VI. 
