Caesalpinia monensis Britton

Caesalpinia monensis Britton; Britton & Wilson, Sci. Surv
Porto Rico & Virgin Ids. 5: 377. 1924.
A branched shrub, about 2 m. high, the twigs rather copiously armed with paired straight stipular prickles 5-9 mm. long. Leaves unarmed; petioles only about 2 mm. long; pinnae a single pair; petiolules longer than the petioles; leaflets 1-3 pairs, 5-8 mm. long, elliptic to obovate-elliptic, chartaceous, glabrous, emarginate, pirmately few-veined; racemes terminal, 81 6-flowered ; pedicels secund, very slender, curved, 2-3 cm. long, jointed near the top, glabrous; flowers greenish yellow; calyx-tube broadly campanulate, 5 mm. long, the lower segment about 8 mm. long, and twice as long as the others; petals shorter than the calyxsegments; filaments pubescent, nearly twice as long as the lower calyx-segment.
Type locality: Mona Island.
Distribution: Known only from the type locality.