Gossypium laxum L.Ll. Phillips
Descripción
Small trees to 7 m tall, the young twigs stellate-pubescent, the older branches with brownish bark and paler lenticels. Leaves spirally disposed; the blades mostly 6-15 cm long, at least as wide, deeply cordate, manifestly 3 (~5)-lobed, the lobes acuminate, stellate-pubescent beneath, subglabrous above, pedately 7-nerved, the foliar nectary weakly developed or absent; petioles 1/3-1 times the length of the blades; stipules 3-4 mm long, subulate. Flowers solitary in the leaf axils, mostly appearing after the leaves fall; pedicels 4-7 mm long, stout, glabrate, surmounted by 3 prominent nectaries; involucellar bracts 1.5-3 mm long, inserted above the nectaries, broadly triangular, appressed, persistent; calyx 8—10 mm long, subtruncate with 5 apiculate teeth, glabrous; corolla pink, the lower half dark red within, the petals 5-8 cm long, abaxially pubescent, adaxially glabrous; staminal column ca. 2.5 cm long, pallid, glabrous, the filaments 4-8 mm long, reddish; style exceeding androecium. Capsules 3-4 cm long, ovoid, 3—5-celled, glabrous, dehiscent but not flaring widely; seeds 6~8 mm long, densely pubescent, the hairs tan. Chromosome number: 2n = 26. A
Distribución
México (país) EndémicoA
Ecología y Hábitat
Gossypium laxum is known only from the Cafién del Zopilote, between Iguala and Chilpancingo, Guerrero, immediately south of the Rio Balsas (=Rio Mexcala), where it is locally abundant as a codominant with woody legumes and arborescent cacti. It flowers principally from December to February.A
Tipo de vegetación
No especificadoA
Categoría IUCN
En peligro (EN)B
Categoría NOM-059-SEMARNAT-2010
Amenazada (A)C