202 Plants from Sinaloa, Mexico. [ZOE 
LE schynomene amorphoides Rose. A bush or small tree 15 feet 
high in the Cerro Colorado, 
Zornia diphylla Pers. The western Mexican and Lower Cali- 
fornia specimens differ from those of Central Mexico somewhat. 
The more acute leaves are larger and the bracts are not so’ 
evidently punctate. There are also other minor differences. 
Desmodium gramineum Gray. Cerro Colorado. 
Desmodium orbiculare Schl. Cerro Colorado. 
Desmodium (Chalarium) chartaceum. Frutescent, 2 m. 
high, the weak stems drooping at the ends, the younger growth, 
pedicels and branches of the panicle furnished with few, short, 
weak, uncinate hairs, otherwise glabrous; leaflets chartaceous, 
three or sometimes one: the terminal one, 6 cm. or less long, 
20-22 mm. wide near the rounded base and then tapering to an 
obtuse or retuse apex that is rarely minutely mucronate: the 
lateral leaflets 15 mm. below the terminal, half its length, the 
same width and more oval in outline; petiole I-3.5 cm. long; 
stipules 7 mm. long, linear-lanceolate, striate, soon deciduous; 
the leafless branching panicle 2 dm. long, pedicels 1-1.5 cm. 
long; calyx lobes 2 mm. long exceeding the tube; corolla purple, 
8 mm. long; legume flat, stipitate, 23 mm. long, 3 mm. wide; 
joints 5, elliptical. 
Near D. Ghiesbreghtii Hemsley, judging from its description. 
Cerro Colorado. 
Centrosema sagittata H. & B. Cofradia. 
Canavalia acuminata Rose. Culiacan and Cofradia. 
Rhynchosia rupicola. Stems twining, 1 m. long, whole 
plant glandular-pubescent: petiole 1-2 cm. long: terminal leaflet 
ovate-acuminate, 3-3.5 cm. long, 2 cm. wide; lateral leaflets 
oblique-ovate, all resinous-dotted on under side: stipules triangu- 
lar-lanceolate: facemes with 2-3 branches, axillary, 9-12 cm. 
long, 3-4 times exceeding the leaves; calyx 5-toothed, the two _ 
Superior teeth slightly united at base, the lower tooth 6 mm. 
long, twice as long as the others and three times the length of 
the tube, all linear-lanceolate: banner 12 mm. long, striped with 
brown; wings yellow; keel violet and yellow: legume 2 cm. 
long, 8 mm. wide; seeds 2, black; hilum linear with funicle at- 
tached to the end: vexillary stamen free. 
