Senna peralteana (Kunth) H. S. Irwin & Barneby

Pseudocassia petensis Britton & Rose, sp. nov
Petioles and inflorescence short-pilose. Leaflets 2 or 3 pairs, oblong-elliptic, membranous, inconspicuously veined, obtuse, about 5 cm. long, or shorter, 1-2 cm. wide, sparingly shortpubescent above, densely tomentulose beneath ; racemes several-many-flowered ; pedicels nearly filiform, 5-10 mm. long; sepals ovate to elliptic, obtuse, sparingly pubescent or glabratc, 5-6 mm. long; petals about twice as long as the sepals; anthers sparingly pubescent.
Peten, Guatemala, April 8, 1922, 0. F. Cook &• R. D. Martin 193.

Pseudocassia anisopetala (Donn. Smith) Britton & Rose
Cassia anisopetala Donn. Smith, Bot. Gaz. 37: 209. 1904.
A shrub, the young branches densely pubescent. Stipules at first small, bracllike, but appearing on second year branches as short stout reflexed prickles. Leaves 1-1.5 dm. long; leaflets 4 pairs, rarely 2 or 3 pairs, lanceolate, acuminate, more or less cuneate at base, 3-S cm. long, 1-3 cm. wide, glabrous and shining above, pubescent beneath; racemes 10-21 cm. long, many-flowered; pedicels slender, 5-6 mm. long; flower-bud somewhat pubescent; outer sepals ciliate, the inner ovate, 5-6 mm. long; petals very unequal, the lower one the largest, 2 cm. long; anthers hairy; ovary glabrous.
Type locality: Cubilquitz, Alta Verapaz, Guatemala. Distribution: Guatemala.

Gaumerocassia peralteana (H.B.K.) Britton
Cassia Peratleana H.B.K. Nov. Gen. & Sp. 6: 356. 1824.
A tree or shrub, the young branches and petioles tomentose-hirsute. Leaflets 3-5 pairS; 1-3 cm. long, oblong, rounded at both ends, puberulent or becoming glabrate above, pubescent beneath; flowers numerous in short. compact racemes; pedicels slender, 6-12 mm. long; sepals ovate-oblong to suborbicular, 6-9 mm. long, obtuse; petals very unequal, the two lower ones about twice as long as the calyx; ovary glabrous; legume linear, flat, S-10 cm. long, 8-10 mm. wide, reticulate-veined, glabrous, short-stipitate.
Type locality: Campeche. Distribution: Campeche; Yucatan.