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 - Woody vine, the stems sericeous to glabrate. Lamina of the larger leaves 9-14 cm long, 4-6.5 cm wide, elliptical, rounded or cuneate at the base, acuminate at the apex, thinly sericeous to very soon glabrate, usually bearing below several to many impressed circular glands 0.2-0.4 mm in diameter in a row about midway between midrib and margin, with no glands at very base of lamina; petiole 7-12 mm long, sericeous to glabrate, eglandular; stipules connate in interpetiolar pairs, the pair triangular, 2-2.5 mm long, 1-1.5 mm wide, persistent or, usually, deciduous, the scar stretched to 2.5 mm wide at older nodes. Inflorescence sericeous to glabrate, cymose-paniculate, the branches terminating in umbels of 4 flowers, the umbel raised on a peduncle 3-6 mm long, the non-floriferous bracts 4-12 mm long, often deciduous in fruit, the floriferous bracts 0.8-1.5 mm long and 0.7-1 mm wide, the peduncle 2.5-6 mm long, the bracteoles 0.5-1.3 mm long and wide, eglandular or abaxially callose, apical. Pedicel 2-4 mm long, loosely sericeous to glabrate. Sepals ca 1.5 mm wide, rounded, glabrous or ciliolate on the margin, appressed m anthesis, the lateral 4 biglandular, the glands 2-4 mm long, elliptical or obovate. Petals yellow, glabrous, entire, obovate and slightly sagittate at the base, the lateral 4 reflexed, the claw 1.2-1.6 mm long, the limb 3.7-4.5 mm long, 2.7-3.5 mm wide; posterior petal erect, the claw 2 mm long, thick, the limb 3-4 mm long, 2.8-3.2 mm wide. Filaments ca 2 mm long, glabrous, straight, ca 1/2 connate; anthers 1.1-1.4 mm long, sparsely sericeous especially at base of locules, ahke. Ovary 1.5 mm high, sericeous; styles ca 2 mm long, the anterior slenderer, glabrous, straight or eventually recurved, the stigmas apparently internal and decurrent. Samara appressed-tomentose, the upper lateral wings 12-18 mm long and 4-8 mm wide, the lower lateral wings 4-9 mm long and 3-4 mm wide; central dorsal wing 2-3 mm wide, entire; nut bearing several narrow winglets or aculeate outgrowths on each side between dorsal and lateral wings.
Species Description - Woody vine, the stems sericeous to glabrate. Lamina of the larger leaves 9-14 cm long, 4-6.5 cm wide, elliptical, rounded or cuneate at the base, acuminate at the apex, thinly sericeous to very soon glabrate, usually bearing below several to many impressed circular glands 0.2-0.4 mm in diameter in a row about midway between midrib and margin, with no glands at very base of lamina; petiole 7-12 mm long, sericeous to glabrate, eglandular; stipules connate in interpetiolar pairs, the pair triangular, 2-2.5 mm long, 1-1.5 mm wide, persistent or, usually, deciduous, the scar stretched to 2.5 mm wide at older nodes. Inflorescence sericeous to glabrate, cymose-paniculate, the branches terminating in umbels of 4 flowers, the umbel raised on a peduncle 3-6 mm long, the non-floriferous bracts 4-12 mm long, often deciduous in fruit, the floriferous bracts 0.8-1.5 mm long and 0.7-1 mm wide, the peduncle 2.5-6 mm long, the bracteoles 0.5-1.3 mm long and wide, eglandular or abaxially callose, apical. Pedicel 2-4 mm long, loosely sericeous to glabrate. Sepals ca 1.5 mm wide, rounded, glabrous or ciliolate on the margin, appressed m anthesis, the lateral 4 biglandular, the glands 2-4 mm long, elliptical or obovate. Petals yellow, glabrous, entire, obovate and slightly sagittate at the base, the lateral 4 reflexed, the claw 1.2-1.6 mm long, the limb 3.7-4.5 mm long, 2.7-3.5 mm wide; posterior petal erect, the claw 2 mm long, thick, the limb 3-4 mm long, 2.8-3.2 mm wide. Filaments ca 2 mm long, glabrous, straight, ca 1/2 connate; anthers 1.1-1.4 mm long, sparsely sericeous especially at base of locules, ahke. Ovary 1.5 mm high, sericeous; styles ca 2 mm long, the anterior slenderer, glabrous, straight or eventually recurved, the stigmas apparently internal and decurrent. Samara appressed-tomentose, the upper lateral wings 12-18 mm long and 4-8 mm wide, the lower lateral wings 4-9 mm long and 3-4 mm wide; central dorsal wing 2-3 mm wide, entire; nut bearing several narrow winglets or aculeate outgrowths on each side between dorsal and lateral wings.
Discussion:
12. Tetrapterys discolor (G. F. W. Meyer) de Candolle, Prodr. 1: 587. 1824. Triopterys discolor G. F. W. Meyer, Prim. Fl. Esseq. 182. 1818. Type. Essequibo, British Guiana [Guyana], Meyer 101 (GOET?).
12. Tetrapterys discolor (G. F. W. Meyer) de Candolle, Prodr. 1: 587. 1824. Triopterys discolor G. F. W. Meyer, Prim. Fl. Esseq. 182. 1818. Type. Essequibo, British Guiana [Guyana], Meyer 101 (GOET?).
Distribution:
Bolivia South America| Brazil South America| Central America| French Guiana South America| Suriname South America| Guyana South America| Venezuela South America| Colombia South America| West Indies|
Bolivia South America| Brazil South America| Central America| French Guiana South America| Suriname South America| Guyana South America| Venezuela South America| Colombia South America| West Indies|