MOUNT BOBAIMA l.\ BRITISH GUIANA. 4.7 



pyramidales, minutissime rubro-glandulosae, floribus parvis ad apices ramoruni 



confertis. Calyx ])rofuiide 4-lobus, glanduloso-punctatus, lobis oblongis obtusis. 



Corolla profunda fc-loba, glanduloso-punctata, lobis oblongis obtusis patentibus. 



Stamina 4, corollsB lobis breviora et prope basin inserta, filamentis quam antheris 



panlo brevioribus. 

 A dio3cious shrub, probably of dwarf habit, glabrous in all parts, with branches ^ in. 

 thick, terete. Leaves chiefly near the apex of the stem, alternate, petiolate, coriaceous ; 

 petiole 2-4 lin. long, rather stout; blade H-2f in. Ion-', 10-1 (i lin. broad, obovate or 

 occasionally subelliptic, obtuse, rarely subacute, with revolute margins, entire, more or 

 less densely covered with very minute red glands beneath. Panicles axillary, near the 

 summits of the branches, narrowly oblong or pyramidal, 1-3| in. long, }- 1\ in. broad, 

 covered with minute red glands, with the flowers crowded at the ends of the short, 

 rather distant, simple branches. Bracts |-1 lin. long, oblong, obtuse, dotted with rather 

 large dark-coloured glands. Calyx 4-lobed nearly to the base ; lobes i-§ lin. long, oblong, 

 obtuse, conspicuously gland-dotted. Corolla about 2 lin. diam., i-lobed nearly to the 

 base; lobes f-1 lin. long, rather more than i lin. broad, conspicuously gland-dotted. 

 Stamens 4, shorter than and inserted towards the base of the corolla-lobes, with stout 

 filaments rather shorter than the oblong, ^ lin. long anthers. Ovary rudimentary, minute, 

 subulate, or none. Female flowers not seen. 



Summit of Mount Roraima, 8600 ft., McConnell 8f Quelch, 665. 

 A very distinct species, unlike any other. 



APOCYNACEiE. 



Mandevilla glabra, N. E. Brown, sp. n. Caules volubiles, glabrescentes. Folia 



parva, distantia, petiolata, coriacea, lanceolata, acuminata, apice obtusa, glabra. 



Bacemi brevissimi, pauciflori, axillares, glabri. Peduneuli et pedicelli brevissimi. 



Sepala parva, ovata, acuta, glabra. Corolla infundibularis, 2J poll, longa, extra 



glabra, intra ad insertionem staminum pilis deflexis dense barbata, lobis dolabri- 



formibus. Stamina inclusa, filamentis oblongis apice barbatis, antheris acutis, basi 



cordatis obtusis. 



Stem twining, about 1 lin. thick, glabrous or with a very few short scattered hairs, 



brown. Leaves opposite, distant, petiolate, coriaceous, glabrous ; petiole 2-3 lin long ; 



blade f-1 in. long, 3J-4 lin. broad, lanceolate, acuminate, obtuse at the point, entire, 



with the midrib impressed above, prominent beneath, and having 5 or 6 small tubercles 



or glands scattei'ed along it on the upper side, the lateral veins spreading, slightly 



impressed on both sides in the dried state, not very conspicuous. Racemes axillary, 



from one axil, very short, about 3-flowered in the specimen seen ; glabrous. Peduncle 



about 1 lin. long, stout. Pedicels alternate, 1-1 h lin. long, stout. Sepals 1 lin. long, 



§-f lin. broad, ovate, acute, glabrous, each with a very short, transversely oblong, 



denticulate scale at its base inside. Corolla about 2] in. long, funnel-shaped ; tube 



curved, cylindrical and about H lin. diam. in the lower half, much enlarged and sub- 



campanulate in the upper half, glabrous outside and inside, except ."« broad lines that are 



