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(Last Modified On 1/29/2013)
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(Last Modified On 1/29/2013)
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Genus
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BOMBACOPSIS Pittier
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PlaceOfPublication
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Contr. U. S. Nat. Herb. 18: 162. 1916.
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Synonym
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Bombax L. sect. Pachiropsis K. Schum. in Mart., Fl. Bras. 12(3):216. 1886, pro parte. Pochota Ramirez Goyena, Fl. Nicaragiiense 198. 1909. Bombax sect. D Ceiba Bakh., Bull. Jard. Bot. Buitenz, ser. 3, 6: 175. 1924, pro parte.
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Description
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Shrubs or trees, deciduous or evergreen, unarmed or sometimes armed, the trunk buttressed or not. Leaves petiolate, the stipules lanceolate, the blade com- pound-digitate, the leaflets 3-11, articulate, sessile or petiolulate, entire. Inflores- cences cymose, the cymes paniculiform and pauciflorous, or generally flowers axil- lary or subterminal, solitary, geminate or sometimes 3-nate. Flowers hermaphrodite, actinomorphous, 7-25.5 cm. long, pedicellate, 3-bracteolate, the bracteoles fugacious; receptacle glandular or not; calyx cupuliform to tubiform, truncate or 3- to 5-lobate, coriaceous or rarely spathaceous, persistent or accrescent; petals 5, oblong to narrowly ribboned, sometimes oblanceolate or spatulate-linear, adnate to the base of the staminal column, fleshy, with tufted hairs on both sides; stamens 100-1,000, 1- or apparently 2-whorled, the staminal column divided into 5 or 10 or 15 phalanges; anthers 1-thecate, oblong to linear, sometimes slightly curved or seldom hippocrepi- form, submedifixus, extrorse, longitudinally dehiscent; pollen zonicolpate or zonicol- porate, the sexine of the walls reticulate and often provided with rugulate elements, that of the mesocolpia sometimes echinulate; ovary superior, sessile, 5-celled, the cells many-ovulate, the ovules inserted on a central columella; style filiform; stigma 5-lobulate. Capsules subligneous to ligneous, loculicidally 5-valvate, the central columella winged and persistent; seeds few to numerous, small to, large, pyriform to ovoid-angular, sometimes polyembryonate, imbedded in few to copious whitish to reddish kapok; cotyledons epigeal and expanded above the ground level, alternate to more or less opposite, petiolate or subsessile, unequal, coriaceous, the primordial leaves simple or compound-digitate.
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Habit
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Shrubs trees
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Distribution
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A neotropical genus (one species, Bombacopsis gla bra (Pasq.) A. Robyns, how- ever, occurs in tropical America and in tropical Africa) of about 21 species of which only two are reported from Panama.
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Key
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a. Unarmed tree; flowers 13-24 cm. long; pedicel, receptacle and calyx without glabrous; stamens ca. 280; ovary tomentellous; capsule ellipsoid, caudate-acumi- nate at the apex; seeds 9-10 mm. long ............... 1. B. SESSILIS aa. Armed tree; flowers 7-11 cm. long; pedicel, receptacle and calyx without puberu- lous to tomentellous; stamens 100-166; ovary glabrous; capsule oblong-ovoid, emarginate and mucronulate at the apex; seeds ca. 4-5 mm. long ........ 2. B. QUINATA
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