Triumfetta purpusii Standl.
Descripción
Tall sparingly branched shrubs about 1.5 m. high; branches and inflorescence axes rough, scurfy, ferruginous-tomentose. Leaves broadly ovate, about 8-9 cm. long and 4-5 cm. wide, the base subcordate, the tip gradually and narrowly acuminate, the serrations unequal and blunt, generally glandular, the upper surface lightly stellate-pubescent, the lower densely tomentose; petioles 3-5 cm. long, densely stellate-pubescent. Inflorescences axillary, the cymes of 2, rarely 3, cymules, generally condensed, the flowering peduncles about 2-3 mm. long, the pedicels of about the same length. Flowers hermaphrodite, the buds broadly oblongoid, 8-12 mm. long slightly before anthesis, the apical appendages very slender, about 6-10 mm. long, usually reflexed upon the bud, densely plumose; sepals oblong, about 16-20 mm. long including the apical appendages, densely long-tomentose without, glabrescent within; petals obovate to narrowly so, about 6-8 mm. long, the claw about 4 mm. long, densely plumose; gonophore about 1.0 mm. long and 1.5-2.0 mm. wide, the glands large, oblong, 1.0-1.5 mm. long and 0.75-1.0 mm. wide; urceolus small, about 0.5 mm. high, very deeply many-lobed, lightly ciliate; stamens about 40, the filaments smooth; ovary orbicular, about 1 mm. long, the spinules about 50, recurved, the style about 8-9 mm. long, the stigma acute. Fruit suborbicular, the body about 5 mm. wide, very densely tomentose, 3-loculate, each cell 1-seeded, the spines straight, about 40, each about 2 mm. long, with many long plumose hairs; seeds pyriform, 2.0-2.5 mm. long and 1.5-2.0 mm. wide.A
Distribución
México (país) EndémicoA
Tipo de vegetación
No especificadoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
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