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Family: Bignoniaceae
Chisná
[Arrabidaea florida A. DC., moreArrabidaea panamensis Sprague] |
Descripción: Plantas trepadoras o lianas con tronco ligeramente acanalado y nudos hinchados. Hojas trifolioladas o bifolioladas, opuestas, a veces con un zarcillo terminal simple. Folíolos de 5-14 x 4-8 cm, ovados, con ápice agudo o acuminado, bordes enteros y base decurrente o truncada. Las hojas presentan pelos en las nervaduras del envés. Flores lilas. Frutos en cápsulas, de 11-22 x 0.8-1 cm, a veces ligeramente lepidotos en la superficie exterior. Semillas aladas. Especies Parecidas: A menudo se confunde con plantas juveniles de LK arraca Arrabidaea candicans LK2 , pero en A. candicans los folíolos de las plantas juveniles presentan los bordes dentados y el tronco es corchoso. También se puede confundir con LK arrach Arrabidaea chica LK2 , pero en A. chica> las hojas secan de color rojo. Liana; branchlets terete, lepidote, lenticellate; tendrils simple; pseudostipules small. Leaves 2- or 3-foliolate, minutely glandular-lepidote; petioles 0.9-6.2 cm long; petiolules 0.5-2.7 cm long; petioles and petiolules canaliculate, puberulent; leaflets ovate to elliptic, acuminate, acute to rounded at base, 5-14 cm long, 3-8.5 cm wide, granular-puberulent to glabrous and lepidote with a few round glands near midrib below. Thyrses terminal or upper-axillary; branches, pedicels, and calyces grayish-tomentose; calyx cupular, truncate, 3-4 mm long, the teeth 5, short; corolla abruptly campanulate, 1.4-1.8 cm long, lavender or white, pubescent outside and on lobes inside, the tube flaring above calyx; stamens subexserted; filaments lavender, the longer pair 8-10 mm long, the shorter pair 5-7 mm long, the thecae divaricate, 1.5 mm long; staminodium 3-4 mm long; pistil 8-10 mm long; ovary linear-cylindric, to 1.5 mm long, lepidote. Capsules linear, flattened, 17-23 cm long, ca 1 cm wide; valves densely glandular-lepidote, with a medial groove; seeds ca 8 mm long, 3.5 cm wide, the seminiferous area +/- lunate, opaque, the wings transparent, lacerate on lateral margins. Croat 11798, 12647. Occasional, in the forest canopy and at lower levels on the lakeshore. Flowers from late June through October (to November); the flowers are abundant on an individual for about a month, though each flower lasts only one day. The fruits mature mostly in the late dry season. Sterile plants are easily confused with Adenocalymma apurense, but can be distinguished from that species by lacking cartilaginous leaf margins. Arrabidaea florida can also be confused with Tynnanthus croatianus, but that species is distinguished by having trifid tendrils (Gentry, 1973b). |
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