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(Last Modified On 8/6/2013)
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(Last Modified On 8/6/2013)
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Species
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Columnea hiantiflora Wiehl.
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PlaceOfPublication
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Selbyana 2: 100, pl. 29D. 1977.
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Note
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TYPE: Near Valle Hornito and Cerro Hornito, Fortuna Dam site, Prov. Chiriqui, Panamar, Dressler 5443 (SEL, holotype, not available for study).
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Description
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Epiphytic herbs or subshrubs; stems erect, ascending or spreading, to 40 cm long, 4-6 mm in diam., green, sericeous, becoming tawny. Leaves nearly equal in a pair, narrowly elliptic, 5.5-8.5 cm long, 1.0-2.2 cm wide, the apex acute to acuminate, the base cuneate or decurrent into the petiole, nearly entire, above and below green, occasionally pink on the veins, sericeous; petioles 3-9 mm long, sericeous. Inflorescences axillary, single flowered; peduncles lacking; bracts linear, ca. 6 mm long, sericeous; pedicels ca. 1 cm long, green, sericeous. Flowers showy, the calyx lobes nearly equal, lanceolate, 1.5-1.9 cm long, acuminate, serrate to laciniate with 5 or 6 teeth, each ca. 3 mm long, outside green, sericeous, the inside glabrous; corolla red, the sinuses of the lobes and throat streaked yellow, the tube erect in the calyx, ca. 7.5 cm long, gibbous at the base, ampliate toward the limb, the outside sparsely pilose, the inside glandular, the limb sub- erect, galea truncate, 1.6 cm long, ca. 2.2 cm wide, the lateral lobes triangular, ca. 1.2 cm long, the basal lobe oblong, ca. 1.8 cm long, 1 cm wide; stamens reach- ing the galea, the filaments curved, 5.5 cm long, adnate to the corolla tube base for ca. 1 mm, reddish, glandular pubescent, the anthers oblong, ca. 3 mm long; disc reduced to a bilobed posterior white gland; ovary sericeous, the style ca. 6.5 cm long, glandular pilose, the stigma stomatomnorphic to bilobed. Fruits not seen.
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Habit
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herbs or subshrubs
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Note
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According to the discussion with original description, the wide-mouthed corollas of Columnea hiantiflora resemble those of C. incarnata, also from the province of Chiriqui, but the plants of the latter species differ in having larger, nearly entire, glabrous calyx lobes. From the original description and illustration, Columnea hiantiflora seems to greatly resemble C. magnifica, so far not definitely known from Panama, but common in Costa Rica at similar elevations and in similar habitats. Columnea magnifica differs primarily in having oblanceolate leaves and less deeply toothed calyx lobes. C. hiantiflora may be a variant of the common Costa Rican species.
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Specimen
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CHIRIQUI: Camp Hornitos (Fortuna dam site), 82?:10'W, 8?44'N, 1100-1200 m, Dressler 5445 (Dressler coll.).
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