Mimosa watsonii Robinson

Mimosa watsonii B. L. Robinson, Proc. Am. Acad. 36: 473. 1901.
Woody at base, climbing, the branches terete or nearly so, armed with numerous very short, reflexed prickles and densely tomentose. Petiole and rachis tomentose, prickly, bearing one or more large cup-shaped glands; pinnae 1-3 pairs; leaflets 1-3 pairs, 1.5-5 cm. long, rhombic-orbicular to obovate, pinnately vemed, somewhat oblique, glabrous or pijberulent above, softly pubescent beneath; heads small and numerous, in large tomentose panicles; peduncles 5-10 mm. long, or shorter; flowers glabrous; corolla 4-lobed; stamens 8; legume 5 cm. long, 7-10 mm. broad, glabrous, unarmed.
TvPK locality: Eastern portion of Vera Paz and Chicfiuimiila. C»iiatemala. Distribution; Guatemala; Costa Rica; El Salvador.

Mimosa recordii Britten & Rose, sp. nov
A high-clambering vine, the branches and inflorescence densely pubescent, and with numerous, short, black, reflexed prickles. Petiole and rachis pubescent and prickly, bearing several large, sessile, cup-shaped glands; pinnae 4-6 pairs; leaflets 4-9 pairs, oblong to orbicular, 0.5-2 cm. long, obtuse, or rounded, cuspidate, densely appressed-pubescent on both sides, pinnately veined, dark above, pale beneath; heads globose, small, numerous, in large panicles; peduncles pubescent, 4-8 mm. long; flowers glabrous; calyx nearly truncate; corolla 4or 5-lobed; stamens 8 or 10.
British Honduras. Type from Middlesex, Stann Creek District, January 19, 1926, Samuel J. Record.
Species not grouped.
IK?. Mimosa costaricensis Benth. Trans. Linn. Soc. 30: 423. 1875.
Shrubby, perhaps climbing, softly brown-tomentose, armed with small, recurved prickles. Stipules subulate, tomentose, 4-8 mm. long; pinnae 4-8 pairs; leaflets 10-15 pairs, broadly obliquely oblong, mucronulate, 6-8 mm. long, pinnately veined, puberulent above, villous beneath, the midvein excentric; flowers capitate, 4-parted, glabrate; heads small, panicled, globular; peduncles 6-10 mm. long; stamens 8 or 10.
Type locality: Aguacate, Costa Rica. Distribution: Known to us from description only.

Mimosa resinifera Britton, sp. nov
A large, woody vine, the branches tomentose and copiously armed with short, reflexed prickles. Petiole and rachis tomentose and prickly, bearing elevated short-cylindric glands; pinnae 2 or 3 pairs, distant; leaflets 2 or 3 pairs, obliquely ovate to obovate, thin, pinnately veined and reticulated, obtuse, glabrous or sparingly appressed-pubescent, resinous-dotted beneath; heads in tomentose, prickly racemes or panicles; pedimcles slender, 5-10 mm. long; flowers 4-parted; calyx about 0.5 mm. long; corolla 1.5 mm. long, deeply lobed; stamens 7 or 8, white.
Vicinity of Tela, Atlantida, Honduras, 1928, SUuidley 5469S.

Mimosa rekoana Britten, sp. nov
Twigs and inflorescence tomentose and copiously armed with small, reflexed prickles. Stipules lanceolate, 5-6 mm. long; petiole and rachis slender, tomentose; rachis bearing small cylindric glands; leaflets 4 or 5 pairs, obliquely ovate, elliptic, or obovate, obtuse, mucronale, pinnately veined, very finely appressed-pubescent above, appressed-pubescent beneath, the terminal pair about 2.5 cm. long, the other pairs smaller; heads panicled, numerous, very small; peduncles only about 6 mm. long, or shorter; flowers glabrous; calyx subtruncate; corolla 4or 5-lobed; stamens 8 or 10.
Oaxaca, 1917, i?. P. Reko 3610.