204 Plants from Sinaloa, Mexico. [ZOE 
broad, the lateral wings short, with a short crest. No cleisto- 
gamous flowers were found with the specimens. Cerro Colo- 
rado and Culiacan. 
Galphimia vestita Watson. It differs from the description in 
having bracts shorter than the pedicel and rarely glands on the 
leaves. Cofradia. 
Malpighia umbellata Rose. A bush bearing an abundance of 
light pink handsome flowers. Culiacan. 
Brysonima crassifolia HBK. Cerro Colorado. 
Zanthoxylum arborescens Rose. Culiacan and Cofradia. 
Zanthoxylum Pterota HBK. Culiacan. 
Bursera collina. Brapches glabrous; leaves except the ter- 
minal 2-3 pairs of pinne bipinnate, 7-15 cm. long, rachis pubes- 
cent and narrowly winged; pinnze 3 cm. long; leaflets 2-3 pairs, 
ovate-acuminate, cuneate at base, 1-2.5 cm. long, 4-7 mm. wide, 
deeply crenate-serrate, sparingly pubescent, darker green above; 
fruit 1 cm. long, glabrous; peduncles 2-6 cm. long. 
This species is near 2. diverstfolia. Cofradia. 
Bursera tenuiflora Rose. Culiacan, 
Bursera Palmeri Watson. Culiacan. 
Bursera laxiflora Watson. Culiacan. 
Bursera bipinnata Engler. Cerro Colorado. 
Trichilia Colimana ©. DC.? The leaves are pubescent, the 
panicles vary from one-quarter to one-half the length of the leaf 
and sometimes bear small leaflets. Culiacan. 
Polygala glochidiata HBK. Cerro Colorado. 
Polygala Albowiana Chodat. Nearly the same as Pringle’s 
3876. Cerro Colorado, Cofradia. 
Polygala collina. Perennial, stems 3 dm. high, pubescent, 
sparingly branched; leaves alternate, puberulent, ovate-lanceolate, . 
attenuate at base into a short petiole, 3-4 cm. long, 7 mm. wide, 
the lower much smaller; infloresence on axillary or supra-axillary 
flowered racemes that are shorter or longer than the leaves; few 
lower pair of sepals connate, upper sepal glandular on the margin, 
entire calyx persisting in fruit; wings obovate, inequilateral, 
shorter than the capsule, 4 mm, long; keel without crest, yellow- 
ish white; petals purple; capsule elliptic-oblong, glabrous; seeds 
