|
(Last Modified On 4/5/2013)
|
|
|
|
(Last Modified On 4/5/2013)
|
|
Genus
|
Bursera Jacq. ex L.
|
|
PlaceOfPublication
|
Sp. PI. ed. 2. 471. 1762, nom. cons.
|
|
Synonym
|
Terebinthus P. Br., Civ. Nat. Hist. Jamaica 345. 1756, non Terebinthus P. Mill., Gard. Dict. Abr. ed. 4. 1754. Simaruba Boehmer in Ludwig, Def. Gen. PI. ed. 3. 513. 1760. Elaphrium Jacq., Enum. Syst. PI. Carib. 3. 1760.
|
|
Description
|
Trees or shrubs; bark smooth or rough, the older bark peeling off in thin pa- pery sheets or thick plate-like scales. Leaves odd-pinnate, bipinnate, or 1- to many- foliolate, usually crowded at the ends of the branches, completely deciduous during the dry season; leaflets opposite, membranaceous to coriaceous, petiolulate to ses- sile, the margins entire to toothed. Inflorescences axillary raceme-like panicles, appearing just before or simultaneously with to rarely after the new leaves; plants dioecious or polygamodioecious. Flowers small, 3-5-merous, usually func- tionally unisexual; sepals 3-5, connate at least basally, imbricate; petals 3-5, whitish to yellow, longer than the sepals, spreading and recurved, induplicate- v7dlvate; stamens 6-10, the filaments subulate, free, inserted at the base of the disc, the anthers oblong, dorsifixed, smaller and abortive in carpellate flowers; disc annular, 6-10-lobed; gynoecium 2-3-carpelled, the ovary 2-3-lobed and -loculed, ovoid, sessile, small and abortive in staminate flowers, the ovules col- lateral, pendulous, 2 per locule, the style short, the stigma capitate, 2-3-lobed. Fruits drupaceous, subglobular to ellipsoid or obovoid, 2-3-angled, resinous, the exocarp and mesocarp coriaceous, dehiscing at maturity by 2-3 valves; pyrenes usually 1, usually 1-seeded; endosperm absent, the embryo straight or curved, the cotyledons foliaceous, contortuplicate, phanerocotyler.
|
|
Habit
|
Trees or shrubs
|
|
Distribution
|
A tropical and subtropical New World genus of perhaps 100 species, two occuring in Panama.
|
|
Key
|
a. Leaflet margins crenate, the rachis winged; flowers 4-merous; fruits dehiscing by 2 valves ................ 1. B. tomentosa aa. Leaflet margins entire, the rachis not winged; flowers 3- or 5-merous; fruits de- hiscing by 3 valves ............ 2. B. simaruba
|
|
Tag
|
|
|
|
Project Name
|
|
Tag
|
|
|
|