120 PROCEEDINGS OF THE AMERICAN ACADEMY. 
petiole ; segments 15-19, broadly oblong, acutish, generally 1—-2-toothed 
upon the lower margin, 5-7 lines long, 24-4 lines broad; the upper 
ones approximate; the lower becoming smaller and more or less 
scattered : inflorescence exceeded by the leaves, loose below, the lowest 
pedicels being 1} inches long: calyx lobes oblong-lanceolate, acute, 
slightly unequal, 2-3} lines long: corolla pure white, } inch in 
diameter ; lobes rounded, cleft half-way to the base ; appendages linear, 
folds free at the tip and forming pairs alternating with the stamens: 
filaments equalling the corolla, hirsute below: style 2-parted for two 
thirds of its length and easily divided to the base; ovary hirsute; 
ovules about 20. — Collected on cliffs in a pine forest of Strawberry 
Valley, Chihuahua, by Mr. Hartman, 8 June, 1891 (no. 686). A 
species of the § Zutoca. 
Lycium RETusuM. Stems glabrous, smooth, dark brown or grayish, 
Sometimes armed with short slender spines; branchlets divaricate: 
pulvini white, pubescent; leaves obovate, cuneate, usually retuse, 
pubescent upon both surfaces: pedicels filiform, glandular-pubescent, 
ah lines long: calyx tubular, glandular-pubescent, 24 lines long ; teeth 
triangular-lanceolate, erect, acute, a third as long as the tube: corolla 
trumpet-shaped, about 4 lines in length; teeth short, retuse, a fourth 
as long as the tube: style and stamens exserted; the latter unequal ; 
filaments bearded at the base: fruit not seen. — Collected at Opata, 
Sonora, at 3,450 feet, by Mr. Hartman, 1 November, 1890 (no. 212). 
: Mavranpia (?) GenrcuLaTA. Densely glandular pubescent and 
viscid: stems zigzag: leaves distichous, orbicular, cordate, coarsely 
crenate, 1-2 inches broad, green upon both sides, 5-nerved; petioles 
spreading, 5-9 lines long: peduncles axillary, }-1 inch in length, 
ascending in anthesis, somewhat thickened and recurved in fruit: calyx 
narrowly campanulate, subequally 5-cleft to near the middle, 6 lines 
ong; segments narrowly ovate, obtusish, 1-nerved, somewhat plaited 
at the sinuses: style simple, filiform, nearly or quite an inch in length ; 
Ovary superior, 2-celled ; ovules numerous, upon axial placente : fruit 
Capsular, about equalling the calyx; seeds oblong, barely a line in 
length, two thirds as thick, black, irregularly roughened with relatively 
large tubercles but not at all winged: corolla and stamens not seen. — 
Collected on cliffs at Nacory, Sonora, at 3,750 feet, by Mr. Hartman, 
1 December, 1890 (no. 272). Closely resembling in foliage and 
pubescence M. erecta, Hemsl., but with a very geniculate stem and 
wingless seeds. Until the corolla and stamens are discovered the 
8eneric position must remain somewhat doubtful. 
IMULUS DENTILOBUS. Very pubescent or glabrate: stems slender, 
