Monographs Details:
Authority:
Smith, Albert C. & Wodehouse, R. P. 1938. The American species of Myristicaceae. Brittonia. 2: 393-527. f. 1-9.
Smith, Albert C. & Wodehouse, R. P. 1938. The American species of Myristicaceae. Brittonia. 2: 393-527. f. 1-9.
Family:
Myristicaceae
Myristicaceae
Description:
Species Description - Medium sized tree; branchlets slender, rugose, glabrous, cinereous; petioles shallowly canaliculate, glabrous, nigrescent, about 1.5 mm. in diameter, 10-13 mm. long; leaf blades coriaceous, minutely rugose or finely papillose and dull on both surfaces, elliptic or obovate-elliptic 9-12 cm. long, 3.5-6 cm. broad, obtuse at base, rounded or obtuse at apex, slightly thickened at margins, the costa prominent on both surfaces, the secondary nerves 12-15 per side, spreading, minutely impressed above, plane beneath, often obscure on both surfaces, obscurely anastomosing near margins, the veinlets immersed; staminate inflorescences 3-7 cm. long, fasciculate-racemose or narrowly paniculate (lateral branches few, not exceeding 2 cm. in length), sparsely strigose, often glabrescent, the peduncle short, the rachis and lateral branches slender; flowers 2-5 per fascicle, the fascicles usually sessile, the pedicels slender, up to 10 mm. long, bracteolate at summit (bracteole one-sided, membranous, ovate, subacute, about 1 mm. long); perianth thin carnose, cupuliform, 2-3 mm. long, 3-lobed more than one-half its total length, the lobes ovate, obtuse or subacute; androecium 1-1.3 mm. long, the filament column carnose, swollen at base, the anthers about 0.4 mm. long, dorsally connate, the connectives inconspicuous; pistillate and fruiting inflorescences not known.
Species Description - Medium sized tree; branchlets slender, rugose, glabrous, cinereous; petioles shallowly canaliculate, glabrous, nigrescent, about 1.5 mm. in diameter, 10-13 mm. long; leaf blades coriaceous, minutely rugose or finely papillose and dull on both surfaces, elliptic or obovate-elliptic 9-12 cm. long, 3.5-6 cm. broad, obtuse at base, rounded or obtuse at apex, slightly thickened at margins, the costa prominent on both surfaces, the secondary nerves 12-15 per side, spreading, minutely impressed above, plane beneath, often obscure on both surfaces, obscurely anastomosing near margins, the veinlets immersed; staminate inflorescences 3-7 cm. long, fasciculate-racemose or narrowly paniculate (lateral branches few, not exceeding 2 cm. in length), sparsely strigose, often glabrescent, the peduncle short, the rachis and lateral branches slender; flowers 2-5 per fascicle, the fascicles usually sessile, the pedicels slender, up to 10 mm. long, bracteolate at summit (bracteole one-sided, membranous, ovate, subacute, about 1 mm. long); perianth thin carnose, cupuliform, 2-3 mm. long, 3-lobed more than one-half its total length, the lobes ovate, obtuse or subacute; androecium 1-1.3 mm. long, the filament column carnose, swollen at base, the anthers about 0.4 mm. long, dorsally connate, the connectives inconspicuous; pistillate and fruiting inflorescences not known.
Discussion:
Type locality: Camanaos, Rio Negro, Amazonas, Brazil.
This species, which grows in "catinga" of the upper Rio Negro, and the preceding are characterized by their leaf shape and obscure venation.
Distribution:
Brazil South America|
Brazil South America|