Hochreutinera Krapov.
Contenido
Descripción
Erect subshrubs with scattered to dense, stellate and simple pubescence. Leaves petiolate or sessile, the blades ovate, deeply cordate, serrate-crenate, acute or acuminate, more or less discolorous, lacking foliar nectaries; stipules filiform, ciliate. Flowers solitary in the leaf axils or in terminal racemes or lax panicles; involucel absent; calyx pubescent, half-or-more-divided, the lobes more or less cordate, acuminate, more or less accrescent; petals yellow, equaling the calyx to 3 times as long as the calyx; androecium glabrous, pallid, included, antheriferous at the apex; styles 1020, the stigmas capitate. Fruits schizocarpic, pubescent, blackish at maturity; mericarps 10-20, apically acute or aristate, dehiscent, with two minute spines or knobs at base on dorsal angle, 5-seeded with endoglossum positioned more or less below the lowermost seed; seeds essentially glabrous but often sparsely and minutely scabridulous. Base chromosome number: x = 7.A
Discusión taxonómica
A genus of two species, one Mexican, the other from Paraguay and Argentina, Hochreutinera is distinguished by its 5-seeded mericarps with an endoglossum located below the seeds.A