VOL. 5] New Specztes of Mexican Plants. 235 
18 mm. long and nearly as wide, equalling in length the wings 
and keel; ovary glabrous. 
Height of plant unknown, and no mature legumes accom- 
pany the specimens. Collected near Tehuacan Puebla, June, 1905. 
Sophora Purpusi. Fruticose, young growth densely white- 
pubescent, becoming darker with age: leaves crowded, 3-4 cm. 
long; petioles 5-7 mm. long; rachis tomentose; leaflets coria- 
4 ceous, 6-9 pairs and a terminal one, ovate-oblong, rounded at 
both ends, nearly sessile, 6-8 mm. long, 3-4 mm. wide, appressed, 
white silky-hairy beneath, darker and less hairy above; stipules 
small, subulate: flowers terminating the branches in a very short 
raceme, white, purple-tinged or dotted; pedicels 3 mm. long, 
bearing minute bracteoles close to the calyx; calyx 1 cm. long, 
campanulate, narrowed at the base about the disk, silky-hairy; 
the three teeth of the lower part deltoid-acuminate, 1 mm. long, 
the upper part broad and slightly longer; vexillum broadly 
obovate, 2 cm. long, exceeding the oblong wings and keel: sta- 
mens united \{ their length: legume 8 cm. long, 1 cm. wide, acu- 
minate, silky-hairy, 2-5 seeded; stipe shorter than the calyx. 
The seeds are young, but probably even at maturity the pod 
would be flattened. Collected on Sierra de Parras, Coahuila, 
March, 1905. 
Halenia Purpusi. Perennial, glabrous; leaves radical, 
3-nerved, spatulate, 3-5 cm. long including the long petiole, 5-7 
mm. wide, obtuse or acuminate: stems 2-3 dm. high, bearing 
rarely a pair of short, linear leaves or bracts near the middle and 
a few. setaceous bracts at the inflorescence: flowers 3-4 termi- 
-Nating the stem; pedicels 4-7 mm. long: sepals oblong, acu- 
minate, % the length of the mature corolla: corolla white, 7 mm. 
long; spur very short or rudimentary: capsule exserted % its 
length and slightly curved near the tip. 
The general appearance of this plant is very much like that of 
#7. plantaginea, but the flowers are smaller and lack the long 
spurs. Collected on Ixtaccihuatl, growing in meadows above 
timber-line. No. 1760. 
Marsdenia parvifolia, Frutescent, the slender stems not 
climbing, slightly pubescent in lines: leaves glabrous. ovate- 
