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(Last Modified On 7/24/2013)
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(Last Modified On 7/24/2013)
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Species
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Vaccinium jefense Luteyn & Wilbur
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PlaceOfPublication
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Brittonia 29: 272. 1977.
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Note
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TYPE: Pan- ama, Luteyn & Kennedy 3955 (DUKE, holotype; MO, NY, isotypes).
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Description
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Viney epiphyte or arching terrestrial shrub to 2 m tall; mature stems green becoming reddish brown, drying brown, subterete, glabrous; bark thin, cracking into longitudinal strips; immature branches and twigs of the new growth sub- terete, glabrous to densely hirsute distally. Leaves coriaceous, entire, elliptic or ovate elliptic, (4.5-)8-12(-13.5) cm long, (2.5-)3-7 cm wide, basally rounded and cordate, apically acuminate, dark green above and paler beneath, drying olive to grayish brown, glabrous above, sparsely to moderately hirsute beneath along the principal veins, the lower surface also with numerous minute glandular fimbriae; pinnately veined with 3 pairs of lateral nerves, the veins impressed above and raised beneath causing the leaves to be bullate, proximal 1-2 cm of midrib conspicuously thickened above; pseudostipules (bud scales) lanceolate, subulate, ca. 3 mm long, hirsute; petioles terete, rugose, hirsute, becoming gla- brous, 5-9 mm long, 2-2.5 mm in diameter. Inflorescence axillary but often ap- pearing terminal, racemose or subcorymbose, 8-17-flowered, the rachis, the pedicels, the bracteoles, the calyx and the corolla totally green; rachis 1-1.5 cm long, subterete, reddish brown, glabrous or sparsely hirsute, densely glandular fimbriate; floral bracts linear lanceolate, 3-9 mm long, ca. 1 mm wide, hirsute, glandular fimbriate, conspicuously nerved; pedicels terete, striate, sparsely hirsute, densely glandular fimbriate, ca. 15 mm long, 1 mm in diameter, elon- gating to 26 mm after anthesis, articulate with the calyx; bracteoles linear lanceolate, 5-8 mm long, ca. 0.5 mm wide, hirsute, glandular fimbriate. Flowers with the hypanthium and free portion of the calyx 7-9 mm long, sparsely to moderately hirsute and glandular fimbriate, the hypanthium cylindric, 10-ribbed, slightly angled opposite the sinuses, 2-2.5 mm long 2-3 mm in diameter; calyx limb campanulate, 5.5-7 mm long including the lobes, the lobes oblong or ovate, acute, often basally slightly imbricate, 5-6 mm long, 1.7-3 mm wide, conspicuously nerved; corolla cylindric, sparsely hirsute and glandular fimbriate especially on the surface of the lobes, 11-12 mm long, 5.5-7.5 mm in diameter, the corolla lobes triangular, ca. 3 mm long, basally ca. 3 mm wide; stamens 10, ca. 8 mm long, the filaments distinct, ca. 3 mm long, broadest basally, marginally densely sericeous especially on the connective, translucent when fresh, the anthers ca. 7 mm long, strongly curved inwards at the base, the thecae granular, ca. 3 mm long, orangish brown when fresh, the tubules ca. 4 mm long, sparsely pilose, dehiscing by laterally oriented apical slits ca. 1.5 mm long, yellowish brown; style included, glabrous, 9-10 mm long.
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Habit
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Viney shrub
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Note
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Vaccinium jefense resembles V. floccosum (Panama), V. poasanum (Guate- mala-Panama), V. costaricense Wilbur & Luteyn and V. orosiense Wilbur & Luteyn (both endemic to Costa Rica) in having short racemose, umbellate to subcorymbose inflorescences with green or yellowish corollas; however, it differs most significantly in its pinnately veined leaves, glandular inflorescence, elon- gate bracteoles, and anther tubules dehiscing by latrorse clefts. This lateral dehiscence seems to be exceptional in the genus. From V. f loccosum, V. costaricense and V. orosiense, the new species further differs in its longer calyx lobes, internally glabrous corolla and anther tubules nearly twice as long.
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Specimen
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PANAMA: 1 milla depues de La Eneida cerca de Cerro Jefe, 750 m, Correa & Dressler 955 (DUKE, MO, PMA). La Eneida near Cerro Jefe, Dressler 3541 (MO, PMA). Path beyond the village of La Eneida, 1000 m, Luteyn & Foster 1124 (DUKE, F, MO, US). Top of Cerro Jefe, 1000 m, Luteyn & Kennedy 3955 (DUKE, MO, NY). Altos de Pacora, 15-20 km WNW of Cerro Azul, premontane rain forest, 800 m, Mori 6910 (DUKE). NE from sum- mit of Cerro Jefe, 1000 m, Mori & Kallunki 6080 (DUKE). Altos de Pacora, 15-20 km WNW of Cerro Azul, 800 m, Mori et al. 6910 (MO). Cloud forest on Cerro Jefe, 1000 m, Mori 7110 (MO). Top of Cerro Jefe, Tyson et al. 4344 (DUKE, MO, SCZ). New road leading N from summit of Cerro Jefe, Witherspoon 8558 (DUKE, MO).
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