Talipariti tiliaceum (L.) Fryxell
Contenido
Descripción
Shrubs or trees 3-8 m tall, often with low spreading branches, the stems minutely and softly pubescent (to glabrescent), the hairs stellate and subarachnoid. Leaf blades coriaceous, broadly ovate (sometimes obscurely pentagonal), mostly 6-13 cm long, slightly wider than long, basally deeply cordate, the margin entire to obscurely denticulate or crenulate, apically short-acuminate, discolorous, glabrate above, minutely and densely stellate-pubescent beneath to nearly glabrous, palmately or pedately 7-9-nerved, the veins raised beneath, the principal (1-5) veins abaxially with a nectary at the base of each, the nectaries 2-7 mm long; petioles 4-12 cm long (commonly subequal to the blade), with pubescence like stem but often denser, especially distally; stipules 1.54 cm long, 8-14 mm wide, oblong-lanceolate, sessile and amplexicaul enclosing the apical bud, acute, many-veined, stellate-puberulent externally, glabrous internally, deciduous, leaving annular scars. Flowers solitary in the axils (or aggregated distally with reduced leaves); pedicels 0.5-3 cm long (above the articulation), often congested at the apices of the branches, minutely stellate-pubescent; involucel cupuliform, half length of calyx or less, obscurely puberulent, 8-12 (-20)-dentate, the teeth 1-6 (-20) mm long, triangular to lanceolate, the sinuses broadly rounded; calyx 1.5-2 cm long, densely stellate-pubescent, more than half-divided, the lobes lanceolate-acute, 12-15 mm long, 6-8 mm wide, with a nectary medially positioned on midrib of each lobe (nectaries sometimes absent); corolla yellow (fading orange, sometimes drying dark greenish) with or without a red center, the petals 4-6 (-8) cm long, externally densely and minutely pubescent, internally glabrous; staminal column 2.5-3 cm long, glabrous, pallid, surmounted by 5 triangular teeth, filamentiferous nearly the length of the column, the filaments 1-3 mm long; styles emergent from staminal column, stigmas 5, capitate, 2 mm in diameter, purplish. Capsule subglobose or slightly obovoid, subequal to calyx, 1.5-2 cm long, 1.5-2 cm in diameter, 5-locular, densely antrorsely pubescent, the hairs yellowish or brownish; seeds numerous, 4 mm long, minutely papillate. Chromosome number (var. tiliaceum): 2n = ca. 80 (Skovsted 1941), 2n = ca. 92 (Skovsted 1935), 2n = 96 (Skottsberg 1955; Youngman 1927).A