Caesalpinia exostemma subsp. exostemma

Poincianella affinis (Hemsl.) Britton & Rose
Caesalpinia affinis Hemsl. Diag. PI. Nov. 8. 1878.
A shrub or tree, up to 4 m. high, the twigs, petioles and rachis short-pilose. Pinnae 2-4 pairs; leaflets 4-6 pairs, oblong to obovate, 1.5-2.5 cm. long, obtuse, softly pubescent, at least beneath; racemes glabrous, 7-12 cm. long; pedicels 1-1.6 cm. long, jointed near the top; calyx glabrous, about 12 mm. long, its lobes about as long as the tube, elliptic, obtuse; petals obovate to suborbicular, 13-17 mm. long, reddish, narrowed at base; filaments about twice as long as the petals, declined, curved, somewhat hairy; ovary pubescent; legume oblong, 6-8 cm. long, puberiUent.
Type locality: Guatemala. Distribution: Guatemala.

Poincianella exostemma (DC.) Britton & Rose
Caesalpinia exostemma DC. Prodr. 2: 483. 1825.
? Poinciana compressa Sess6 & Mocino; G. Don, Gen. Hist. 2: 433. 1832.
? Caesalpinia compressa D. Dietr. Syn. PI. 2: 1494. 1840.
A shrub or tree, glabrous throughout. Pinnae 3 or 4 pairs; leaflets 3 or 4 pairs, ovate, about 1.5 cm. long, obtuse; racemes about IS-flovpered; pedicels about 1 cm. long, jointed near the top; calyx and stamens reddish; calyx-segments ovate-elliptic, obtuse, well imbricated, about 7 mm. long; petals suborbicular, somewhat longer than the calyx; filaments declined, slender, about 2.5 cm. long, about twice as long as the petals, hairy throughout, not glandular; legume 8-12 cm. long, 1.5-2 cm. broad, acute, puberulent.
Typb uocality: Mexico.
Distribution; Southern Mexico and Guatemala.