VOL. 5] Plants from Sinaloa, Mexico. 203 
This plant is so glutinous that the stems stick together when 
collected. It differs from most species of the genus in having 
branched racemes and the attachment of the seed. Growing 
among rocks of the highest elevations of the Cerro Colorado. 
Phaseolus rubescens Brandegee. This species was described 
from specimens collected in the Cape Region of Baja California. 
It is common on the low lands west of Culiacan. Dr. Palmer’s 
104 from Acapulco is the same species. 
Erythroxylon sp. Probably the same species that Dr. Rose 
found at Tepic. Altata. 
Guadichaudia fiilipendula Juss. Culiacan and Cofradia. 
Heteropteris arborescens. A large bush or small tree q—5 m. 
high with a spreading top; branches light brown thickly covered 
with small lenticles; leaves ovate-lanceolate, acuminate, 7 cm. 
long, 3-5 cm. wide, glabrous, biglandular on the nerves near the 
base or on the 6-10 mm. long, pubescent petiole; fruiting calyx 
8-glandular; fruit in terminal or axillary panicles with brown- 
pubescent peduncles and pedicels, without crests; samarz usually 
two, 3 cm, long: the wing 1.5 cm. broad above, straw-colored 
shading into bright red toward the margin; flowers not seen. 
This small tree grows on the steep slopes of the Cerro Colo- 
rado, where its crowded brilliant fruit makes it very conspicuous. 
Heteropteris Palmeri Rose? Seen only in fruit. Common 
about Cofradia. 
Janusia Mexicana. Stems suffruticose, twining, 1 m. long 
and less, the new growth pubescent; larger leaves ovate acumi- 
nate, mucronate, pubescent, lighter colored beneath, 5 cm. long, 
2-3 cm. wide; petioles 5 mm. long; infloresence axillary in 3-4 
flowered corymbs; peduncle 4 mm. long; pedicels 3-5 mm. long, 
- with two leafy bracts at their bases, white-hirsute; bractlets 
minute; petals 5, clawed, 8 mm. long, the orbicular dentate- 
lacerate limb 5 mm. in diameter, orange-yellow; fertile stamens 
two, their filaments 4 mm. long, united near the base; the 
anthers orbicular, glabrous; style basilar, exceeding the stamens; 
stigma capitate; calyx lobes oblong-lanceolate, two biglandular, 
two uniglandular, one usually glandless, glands deciduous with 
age; mature fruit one carpel, dorsal wing 1 cm. long, 5 mm. 
