Siphocampylus glaber McVaugh

Siphocampylus glaber McVaugh, sp. nov.*
Slender shrub 1 m. high or less, glabrous, the branches up to 3 mm. in diameter, green or purplish (?); cauline leaves crowded, 50 or fewer, coriaceous, shining (?) above, the blades narrowly elliptic, 0.6-1.1 cm. wide, 5-12 cm. long, usually about 10 times as long as wide, the upper little reduced, the margins appearing entire, somewhat revolute, with few obscure mostly inroUed callosities, the base and apex acute, attenuate, the former subpetiolate; flowers few10 in the axils of the upper leaves, distant, the inflorescence often interrupted by sterile nodes; pedicels spreading-ascending, 1 mm. in diameter or less, 50-60 mm. long in fruit, each with a pair of filiform decurrent bracteoles 1-2 mm. long, at the middle or near it; flower about 2.5 cm. long, including hypanthium; corolla blue (according to Shafer), glabrous, the tube straight, cylindric or essentially so, about 13 mm. long, entire, the lobes linear-attenuate, not recurved, 1-1.5 mm. wide at base, the two upper lobes 7-8 mm. long, the others slightly shorter; filamenttube about 1 7 mm. long, glabrous distally, the filaments free from the corolla, distinct for about 3 mm. at base and there hairy; anther-lube 3.5-4.0 mm. long, the two shorter anthers densely while-tufted at tip, the others densely hairy near tip; hypanthium in anthesis turbinate, the base acute, in fruit becoming campanulate with attenuate base, slightly oblique, about 5 mm. in diameter; capsule 8 mm. long or less, about three-fourths inferior, the open valves about 2 mm. long, plainly exceeding the rim of the hypanthium; calyx-lobes triangular-subulate, entire, 2-2.5 mm. wide at ba.sc, 3-5 mm. long; seeds light brown, ellipsoid with rounded ends, about 0.75 mm. long, shallowly pitted-reticulate.
Tvp« locality: Arroyo del Medio, olmve the falls, Oriente, Cuba, Shafer 3225, Dec. 20, 1909 (NV).
OisTRiBtiTioN: Known only from the type locality.
• Slphoc«mpylu» jUber, up. nov.; fnitcx. a S. subglaliro foliin pclioliwiiic ((tabri*. corolla caeriilcn, inlu» KJalira, cajmila 8 mm. longa, valvi» 2 mm. lonicis, hypanlhii niarilincrn »ii|)cnintibuH (liHtinttiiitnr.

Siphocampylus glaber là loài thực vật có hoa trong họ Hoa chuông. Loài này được McVaugh miêu tả khoa học đầu tiên năm 1943.