Mimosa mollis Benth.

Mimosa mollis Benth. Journ. Bot. Hook. 4: 408. 1842 A shrub, the twigs loosely soft-pubescent, armed with flattened prickles. Petiole, rachis and leaflets softly pubescent; pinnae 4-8 pairs; leaflets 6-10 pairs, oblong, 5-6 mm. long, acute, densely villoustomentose; heads globose; flowers capitate; peduncles axillary, often clustered, slender, 3-4 cm. long, villous-tomentose ; caly.x and corolla pubescent; stamen^ twice as many as the corolla-lobes.
Type locality: Acatlan. Puebla. Distribution: Puebla.

Mimosa herincquiana M. Micheli, Mem. vSoc. Geneve 34: 276. 1903. A tree, 5 m. high, the twigs densely brownish-pubescent, unarmed. Stipules linear, tomentose; petioles, rachis and leaflets densely tomentose; pinnae 5-8 pairs; leaflets 7-S pairs, 2-3 mm. long, acute, 1-1.5 mm. wide; heads globose, in axillary and terminal racemes; peduncles solitary or clustered, 2 cm. long or less, tomentose; calyx and corolla tomentose; stamens 10; ovary puberulent.
Type locality: Cariote del Zopilote. Guerrero. Distribution: Known only from the type locality.