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Project Name Data (Last Modified On 8/21/2013)
 

Flora Data (Last Modified On 8/21/2013)
Species Cephaelis panchocoensis Dwyer
Note TYPE- Panama, Gentry & Mori 13895 (MO, holotype).
Description Succulent subshrubs, to 0.75 m tall, the stems somewhat smooth, glabrous, drying red, the superior nodes well spaced. Leaves elliptic or obovate elliptic, 10-35 cm long, 3.5-14.0 cm wide, rounded or obtuse toward the apex, acuminate, the acumen short and wide, to 1 cm long, acute or attenuate, acute basally, the costa immersed above, prominent beneath, the lateral veins 20-38, plane or prom- inulous above, leaving the costa at almost right angles and arcuate only near the margin or strict and sharply ascending, prominulous and conspicuous beneath, arcuate, the undulate submarginal vein 2-8 mm from the margin, not conspicu- ously undulate on proximal portion of the blade, the smaller veins inconspicuous, the intervenal areas smooth, chartaceous to subpapyraceous, discolorous, drying red to brown beneath, glabrous and minutely farinose above, minutely puberulent especially on the veins beneath; petioles absent or to 1 cm long; stipules free, ovate lanceolate, to 1.6 cm long, ca. 0.6 cm wide, obtuse?, drying red, subcori- aceous, apparently glabrous. Inflorescences terminal, capitate, 2-4 cm long, 2- 6 cm wide, the head appearing solitary or of 2-6(or more?) smaller heads aggre- gated tightly into a unit head on suppressed branches or several heads on 3 branches terminating a peduncle to 2.5 cm long, stout, to 4 mm wide, glabrous, drying red; bracts numerous, involucral, the outermost oblong, to 2 cm long, about ?2 as wide as long, obtuse, stiff, venose, glabrous, the margin irregular, callose, drying tan, with a few glands within. Flowers sessile, the hypanthium ca. 1 mm long, glabrous, the calycine cup cylindrical, to 3.5 mm long, the teeth
Habit subshrubs
Description 5, short, obscured by the ciliate margin, the cup glabrous with a few glands within, these polymorphic, narrow oblong to ovate oblong, to 1.2 mm long; co- rolla white, narrowly cylindrical, to 10 mm long, ca. 0.6 mm wide in the middle, glabrous outside, villosulose within near the mouth, the lobes 5, oblong, to 3 mm long, attenuate above the middle with a minute adaxial projection ca. 1 mm below the apex; stamens 5, the anthers narrowly oblong, to 2 mm long, subsessile, attached just below the mouth; ovarian disc oblong, to 0.8 mm long, drying black; style linear, ca. 14 mm long, the stigmatic area scarcely wider than the style, to 2 mm long. Fruits oblong, to 8 mm long, ca. 4 mm wide, glabrous, red, lightly costate, the calyx cup persistent or deciduous.
Distribution known only from Panama and Colombia.
Note It is recognized by its many-veined leaves and terminal capitate inflorescences. The leaves dry a pink red beneath, have the lateral veins either leaving the costa at right angles or strict and sharply ascending. The undulate submarginal vein of the blade becomes subparallel to the margin on the lower 1/4 of the blade. Another diagnostic character is the callose margin of the bracts. The flowers appear to be few per head. My description of the flower is based on Gentry et al. 16756. The calycine cup is strikingly elongate with several glands within. On dissecting the calycine cup of the fruit of Gentry 4767, I observed several triangular glands regularly arranged at the base of the cup; these I was unable to find in dissecting the calycine cup of Gentry 16756. The style is noteworthy in being linear and extending beyond the elongate corolla tube. The new species is related to Cepha- elis dressleri Dwyer, described as new in this paper. Cephaelis panchocoensis is an upland species, while C. dressleri is a lowland species.
Specimen PANAMA: DARIEN: La Boca de Pirre, Bristan 1277 (MO). Cerro Pirre base camp on Rio Perre- cenega, Gentry 4767 (MO). S slope of Cerro Tacarcuna above Rio Pucro base camp, 700-1000 m, Gentry & Mori 13895 (MO). E of Tres Bocas, shortest headwater of Rio Cuasi, Kirkbride & Duke 1198 (MO). COLOMBIA: CHOCO: Upper Rio Tigre near base of Serrania del Dari6n, E of Unguia, 250- 300 m, Gentry et al. 16756 (MO).
 
 
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