Monographs Details:
Authority:
Maguire, Bassett. 1978. The botany of the Guayana Highland--part XI. Mem. New York Bot. Gard. 32: 1-391.
Maguire, Bassett. 1978. The botany of the Guayana Highland--part XI. Mem. New York Bot. Gard. 32: 1-391.
Family:
Malpighiaceae
Malpighiaceae
Description:
Species Description - Trees 8-25 m tall; branches tightly sericeous. Lamina of the leaves (8-) 11-19 (-22) cm long, (3-)4.5-7(-8) cm wide, elliptical, attenuate at the base, attenuate or usuaHy acuminate at the apex, glabrate above at maturity or obscurely sericeous, especially on the midrib, sparsely sericeous to nearly glabrate below, the hairs 0.1-0.2 mm long, sessile, straight and tightly appressed, parallel, never dense enough to hide the lamina, the midrib, lateral veins, and reticulum prominent below; petiole 20-30 mm long, sericeous to glabrate; stipules 3-4.5 mm long, connate, the pair acute or obtuse at the apex, abaxially sericeous, adaxially sparsely sericeous or glabrous. Inflorescence 6-14 cm long, sericeo-velutinous; bracts (2.5-)3-4.5(-6) mm long, up to 1 mm wide, subulate, strongly reflexed or circinately or hetically revolute, deciduous or persistent; peduncle 0-1(-2) mm long, 1(-2)-flowered; bracteoles 0.5-1 (-1.5) mm long, 1-1.5 mm wide, triangular, usually persistent to maturity ofthe fruit. Pedicel 7-11 mm long in flower, up to 13 mm in fruit, loosely sericeous, straight or slightly circinate in bud, mostly straight and ascending in fruit. Sepals all biglandular, 1.5-2 mm long, triangular or Hngulate, obtuse at the apex, revolute, abaxially sericeous, adaxiaHy slightly to densely sericeous or velutinous near the apex, accrescent in fruit. Petals yellow, glabrous. Anthers 1.5-2.5 mm long, sericeous, especially between the locules, the connective equalling the locules or extended beyond them up to 0.6 mm (both extremes and intermediates occurring in the same flower), the locules narrowly linear, sometimes free at the apex. Ovary conical or compressed-hemispheroidal, 1.5 mm high, densely sericeous, especially on the distal half; styles 2.6-3.2 mm long. Fruit yellow, 10-13 mm in diameter (dried), globose, sericeous at the very apex, excavated at the base where borne on a rounded torus, the nut rugose.
Species Description - Trees 8-25 m tall; branches tightly sericeous. Lamina of the leaves (8-) 11-19 (-22) cm long, (3-)4.5-7(-8) cm wide, elliptical, attenuate at the base, attenuate or usuaHy acuminate at the apex, glabrate above at maturity or obscurely sericeous, especially on the midrib, sparsely sericeous to nearly glabrate below, the hairs 0.1-0.2 mm long, sessile, straight and tightly appressed, parallel, never dense enough to hide the lamina, the midrib, lateral veins, and reticulum prominent below; petiole 20-30 mm long, sericeous to glabrate; stipules 3-4.5 mm long, connate, the pair acute or obtuse at the apex, abaxially sericeous, adaxially sparsely sericeous or glabrous. Inflorescence 6-14 cm long, sericeo-velutinous; bracts (2.5-)3-4.5(-6) mm long, up to 1 mm wide, subulate, strongly reflexed or circinately or hetically revolute, deciduous or persistent; peduncle 0-1(-2) mm long, 1(-2)-flowered; bracteoles 0.5-1 (-1.5) mm long, 1-1.5 mm wide, triangular, usually persistent to maturity ofthe fruit. Pedicel 7-11 mm long in flower, up to 13 mm in fruit, loosely sericeous, straight or slightly circinate in bud, mostly straight and ascending in fruit. Sepals all biglandular, 1.5-2 mm long, triangular or Hngulate, obtuse at the apex, revolute, abaxially sericeous, adaxiaHy slightly to densely sericeous or velutinous near the apex, accrescent in fruit. Petals yellow, glabrous. Anthers 1.5-2.5 mm long, sericeous, especially between the locules, the connective equalling the locules or extended beyond them up to 0.6 mm (both extremes and intermediates occurring in the same flower), the locules narrowly linear, sometimes free at the apex. Ovary conical or compressed-hemispheroidal, 1.5 mm high, densely sericeous, especially on the distal half; styles 2.6-3.2 mm long. Fruit yellow, 10-13 mm in diameter (dried), globose, sericeous at the very apex, excavated at the base where borne on a rounded torus, the nut rugose.
Discussion:
7. Byrsonima crispa Adr. Jussieu, Ann. Sci. Nat. 2° Ser. Bot. 13: 335. 1840. Byrsonima carmeniana Cuatrecasas, Webbia 13(2): 615. 1958. Type. Cuatrecasas 8896, Cerro de La Sardina, 500 m, Florencia, Caqueta, Colombia, Mar flr (holotype US! isotypes COL, F!) Type. Poeppig 3003, "Insula Colares, ostia fluvii Amazonici," Para, Brazil (holotype P). This species is very similar to Byrsonima aerugo. They differ in their stature (B. aerugo is usually taller) and in the vesture of the leaves, which are very densely and persistently sericeous below in B. aerugo. The two taxa have not been collected in the same area.
7. Byrsonima crispa Adr. Jussieu, Ann. Sci. Nat. 2° Ser. Bot. 13: 335. 1840. Byrsonima carmeniana Cuatrecasas, Webbia 13(2): 615. 1958. Type. Cuatrecasas 8896, Cerro de La Sardina, 500 m, Florencia, Caqueta, Colombia, Mar flr (holotype US! isotypes COL, F!) Type. Poeppig 3003, "Insula Colares, ostia fluvii Amazonici," Para, Brazil (holotype P). This species is very similar to Byrsonima aerugo. They differ in their stature (B. aerugo is usually taller) and in the vesture of the leaves, which are very densely and persistently sericeous below in B. aerugo. The two taxa have not been collected in the same area.
Distribution:
Venezuela South America| Colombia South America| Brazil South America|
Venezuela South America| Colombia South America| Brazil South America|