Triumfetta acracantha Hochr.
Descripción
Small shrubs about 1.5 m. tall; branches and inflorescence axes smooth, brownish, glabrescent. Leaves ovate-elliptic, slightly 3-lobed, about 10-11 cm. long and 4-5 cm. wide, the base rounded or obtuse, the tip gradually and narrowly acuminate, rather equally and doubly serrate, both surfaces with very few small tufts of stellate hairs, nearly glabrate; petioles slender, about 4-6 cm. long, slightly pubescent. Inflorescences usually axillary, sometimes terminal, the cymes of 2 cymules rather lax, the bracts elliptical to narrowly ovate, the flowering peduncles 2-3 mm. long, the pedicels about 2 mm. long. Flowers hermaphrodite, the buds oblongoid, 7-8 mm. long slightly before anthesis, slightly constricted towards the base, the apical appendages slender, 2-3 mm. long, glabrescent; sepals oblong, about 8-9 mm. long including the apical appendages, lightly stellate-pubescent without and glabrescent within; petals lanceolate, 3-5 mm. long, the claw about 2 mm. long, sparsely plumose; gonophore stout, about 1 mm. long and 1.5 mm. thick, the glands spherical, about 0.75 mm. long; urceolus about 0.5 mm. high, indistinctly lobed, lightly ciliate; stamens 20, the filaments smooth, slightly pubescent towards the base; ovary ovoid, about 1 mm. long, the spinules numerous, recurved, the style slender, about 6 mm. long, the stigma briefly 3-lobed. Fruit orbicular, the body about 3 mm. thick at maturity, lightly stellate-pubescent, 3- loculate, each cell 2-seeded, the spines slender, about 75, retrorsely pilosulose.A
Distribución
México (país) EndémicoB
Elevación
100 – 200 mA
Tipo de vegetación
No especificadoA
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Bibliografía
A. Lay, K. K. 1950: The American species of Triumfetta L. – Ann. Missouri Bot. Gard. 37(3): 315–395. https://doi.org/10.2307/2394513