VoL. 5] New Species of Lower California Plants. 169 
It grows upon the western slope of the Cape Region Mts. 
Ipomza scopulorum. Perennial, pubescent throughout; 
stems 1-2 m. long, prostrate over rocks or climbing among 
bushes; leaves 5-6 cm, wide, 6-7 cm. long, especially pubescent 
upon the veins of both faces, cordate or sometimes cuneate at 
base, ovate, acuminate, entire, on petioles 3-5 cm. long: pedun- 
cles about as long as the leaves, 1-4 flowered, pedicels 2-3 cm. 
long; corolla cream white, 6-8 cm. long, tube narrow funnel-form, 
lobes mucronate, spreading 6-8 cm.; calyx pubescent, lobes 
ovate, aristate, coriaceous, I-5 cm. long, outer ones shorter; stig- 
ma indistinctly 2-lobed; capsule broadly ovate, longer than the 
calyx, pointed with the base of the style that at maturity falls 
away with a small part of the capsule, which then divides to the 
base into four 1-seeded valves; seeds 7 mm. long, brown, triangular 
in cross-section, densely pilose upon the two sharper angles with 
white hairs 8 mm. long, 
Common at lower elevations of the Cape Region, usually 
amongst rocks, and also collected at Mazatlan, Oct. 8, 1893, in 
fruit. It bears an abundance of flowers, is grayishin appearance 
on account of the white pubescence, and the stems are somewhat 
coarse and stiff for an Ipomea. 
Ipomza spinulosa. Stems trailing or somewhat twining, 
glabrous throughout, armed with numerous prickles 4 mm, or 
less long; leaves 8-9 cm. long, 7-9 cm. wide, broadly cordate, 
long-acuminate, the midrib excurrent, entire or sometimes 3- 
lobed, the lobes pointed; peduncles shorter than the leaves, 7-9 
cm. long, thickened upward, 1-3 flowered; corolla pale violet, 3 
cm. long, funnel-form, spreading 2 cm. wide; stigma 3-lobed; sta- 
mens slightly pilose at base; sepals dark brown with lighter mar- 
gins, becoming coriaceous, ovate, 6 mm. long, the thick midnerve 
extended into a spine 3-4 mm. long; capsule reflexed, ovate- 
conical, acute, longer than the calyx, 2-celled, 4-seeded; seeds 
seeds smooth, 8 mm. long. 
The dark brown prickles are sometimes wide and foliaceous. 
Collected about the western base of the Cape Region in Sept., 
1893. 
