Monographs Details:
Authority:
Pennington, Terence D. 1981. Meliaceae. Fl. Neotrop. Monogr. 28: 1-359, 418-449, 459-470. (Published by NYBG Press)
Pennington, Terence D. 1981. Meliaceae. Fl. Neotrop. Monogr. 28: 1-359, 418-449, 459-470. (Published by NYBG Press)
Family:
Meliaceae
Meliaceae
Synonyms:
Acanthotrichilia triacantha (Urb.) O.F.Cook & G.N.Collins
Acanthotrichilia triacantha (Urb.) O.F.Cook & G.N.Collins
Description:
Species Description - Young branches appressed puberulous soon glabrous, greyish-white, without lenticels. Bud scales absent. Leaves digitate, petiole 5-7 mm long, semiterete, puberulous; petiolule 0-1 mm long. Leaflets (3-)5-7, obovate or oblanceolate with a broadly truncated apex produced into 3 acute spinous lobes (spines 1.5-2.5 mm long), base acute or narrowly cuneate, coriaceous, 2-2.6 cm long, 1-1.3 cm broad, glabrous, not glandular-punctate or -striate; venation craspedodromous with a prominent marginal vein, midrib flat; secondaries ca. 10 on either side of midrib, ascending, straight and parallel; intersecondaries and tertiary reticulum moderately prominent on both surfaces. Inflorescence axillary, ca. 1.5 cm long, few-flowered, sparsely appressed puberulous; pedicel ca. 0.5 mm long. Calyx shallowly cyathiform, ca. 0.75 mm long, with 5 shallow, obtuse to acute lobes ca. 1/3 length of calyx, appressed puberulous. Petals 5, free, valvate, ca. 3 mm long, 1 mm broad, lanceolate, apex acute, hooded, appressed puberulous with dibrachiate or medifixed hairs outside, glabrous inside. Staminal tube cyathiform, ca. 2 mm long, ca. 1.5 mm broad; filaments completely fused, margin with 10 short acute lobes alternating with anthers and ca. 1/4 their length, glabrous outside, sparsely hairy inside; anthers 10, ca. 0.8 mm long, glabrous. Nectary absent. Ovary conical, 3-locular, loculi with 2 collateral ovules, short strigose; style strigose; style-head capitate, equalling base of anthers. Fruit unknown.
Species Description - Young branches appressed puberulous soon glabrous, greyish-white, without lenticels. Bud scales absent. Leaves digitate, petiole 5-7 mm long, semiterete, puberulous; petiolule 0-1 mm long. Leaflets (3-)5-7, obovate or oblanceolate with a broadly truncated apex produced into 3 acute spinous lobes (spines 1.5-2.5 mm long), base acute or narrowly cuneate, coriaceous, 2-2.6 cm long, 1-1.3 cm broad, glabrous, not glandular-punctate or -striate; venation craspedodromous with a prominent marginal vein, midrib flat; secondaries ca. 10 on either side of midrib, ascending, straight and parallel; intersecondaries and tertiary reticulum moderately prominent on both surfaces. Inflorescence axillary, ca. 1.5 cm long, few-flowered, sparsely appressed puberulous; pedicel ca. 0.5 mm long. Calyx shallowly cyathiform, ca. 0.75 mm long, with 5 shallow, obtuse to acute lobes ca. 1/3 length of calyx, appressed puberulous. Petals 5, free, valvate, ca. 3 mm long, 1 mm broad, lanceolate, apex acute, hooded, appressed puberulous with dibrachiate or medifixed hairs outside, glabrous inside. Staminal tube cyathiform, ca. 2 mm long, ca. 1.5 mm broad; filaments completely fused, margin with 10 short acute lobes alternating with anthers and ca. 1/4 their length, glabrous outside, sparsely hairy inside; anthers 10, ca. 0.8 mm long, glabrous. Nectary absent. Ovary conical, 3-locular, loculi with 2 collateral ovules, short strigose; style strigose; style-head capitate, equalling base of anthers. Fruit unknown.
Discussion:
Relationships These are discussed under T. aquifolia.
Relationships These are discussed under T. aquifolia.
Field Characters: A small tree to 10 m high.
Distribution:
Puerto Rico South America|
Puerto Rico South America|
Common Names:
Bariaco, guayabacón
Bariaco, guayabacón