Centropogon palmanus (Donn. Sm.) E. Wimm.

Centropogon palmanus (Donn. Smith) F. E. Wimmer, Repert. Sp. Nov. 38: 7. 1935.
Centropogon nematosepaliis var. palmanus Donn. Smith, Bot. Gaz. 44; 115. 1907.
Terrestrial, herbaceous; stems simple, procumbent or erect, green or dark purjile, 2-4 mm. in diameter, 1 m. high or less, generally pubescent with sharp hollow light-colored jointed hairs; leaves cauline, up to about 25, spreading, papery-thin wheu dry and slightly lighter in color beneath, the youngest ones somewhat reduced in size; blades ovate, cordate or subcordate at base, abruptly or occasionally gradually acuminate, (1.5) 2-4 cm. broad, 3.5-6.5 cm. long, 1.5-2 times as long as broad, on a stout petiole (0.5) 1-2 cm. long, pubescent on both sides, especially when young, and on the veins beneath, the hairs whitish, often conspicuous, the margins sharply and evenly serrate with 9-12 sharp ascending or spreading teeth per cm., the teeth deltoid or narrower, pubescent; inflorescence few-50 cm. long, often interrupted, the few-15 flowers in the axils of the upper leaves, widely spaced ; pedicels spreading and flexuous, up to about 1 mm. in diameter, mostly 60-90 mm. long in fruit, densely pubescent or in age glabrate, each with a pair of minute filiform bracteoles at base; flower 3.5-4.5 cm. long, including hypanthium; corolla "red," "dark red," "crimson," or "carmine," glabrous within, pubescent without with jointed, partially purplish hairs, the hairs particularly dense on the lobes, the tube 24-32 mm. long, straight or very slightly curved, narrowest just above the base, the distal portion very narrowly furmelform, subcylindric, or fusiform, about 4-6 mm. wide when pressed, the lobes acute, narrow, little or not at all recurved, the two upper ones 1.5-2 mm. wide at base, erect, 6-9 mm. long, the lateral and lower lobes similar, deltoid or narrower, slightly shorter; filament-tube (24) 28-34 mm. long, glabrous, the filaments distinct at base and fused to the narrow proximal portion of the coroUa-tube; anther-tube 4.5-5.5 mm. long, bluish-gray, the two shorter anthers white-tufted at tip, the others with a few stiff hairs near tip; h>-panthium in anthesis campanulate, somewhat pubescent, the base rounded or acute, the tube about 1.5 times as long as vride when pressed; fruit a broadly ellipsoid white berry, little or not at all inflated, 8-10 mm. in diameter by 10-12 mm. long; calyx-lobes triangular-subulate, pubescent, callose-denticulate, 1-2 mm. wide at base, 3.5-6 mm. long; seeds lenticular, slightly longer than wide, foveate-reticulate, about 0.6 mm. long.
_TvpE LOC^Lin-; La Palma. Prov. San Jose, Costa Rica, at an elevation of 1500 m., Pillier 271 DisTRiBUTio.v: Mountain forests of Costa Rica, at elevations of 1300-1770 m.

Centropogon palmanus là loài thực vật có hoa trong họ Hoa chuông. Loài này được (Donn.Sm.) E.Wimm. mô tả khoa học đầu tiên năm 1935.