Triumfetta coriacea Hochr.
Descripción
Small trees or large shrubs 3-4 m. high; branches and inflorescence axes glabrescent, brownish. Leaves broadly ovate to 3-lobed, 11-14 cm. long and 8-12 cm. wide, the base cuneate to rounded, the tip long-acuminate; the serrations regular and usually double, the upper surface glabrate, the lower very lightly pubescent to glabrescent; petioles stout, 4-6 cm. long, with 2 or 4 prominent glands at the basal sinus. Inflorescences axillary, rarely terminal, the cymes of 2-3 cymules, borne very loosely in nodose clusters, the flowering peduncles 6-8 mm. long, the pedicels 2-4 mm. long. Flowers hermaphrodite, the buds narrowly oblongoid, about 22 mm. long slightly before anthesis, constricted in the middle, the apical appendages very short, about 0.5 mm. long; sepals elliptical, 22-24 mm. long, rather lightly stellate-pubescent without; petals broadly obovate, 20-22 mm. long and 6-8 mm. wide, the claw about 3 mm. long, densely plumose; gonophore slender, 1-2 mm. long, the glands elliptical, subequalling the gonophore; urceolus about 0.5 mm. high, many-lobed, lightly ciliate; stamens about 40, the filaments glabrous; ovary ovoid, about 1.5 mm. long, the spinules numerous, erect, the style about 22 mm. long, the stigma acute. Immature fruit orbicular, the body essentially glabrous, 2-loculate, each cell 1-seeded, the spines numerous, rather short; mature fruit not seen.A
Distribución
México (país) EndémicoB
Elevación
800 – 1000 mA
Tipo de vegetación
Bosque de encino, Bosque de pinoA
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