FERNALD. — MEXICAN PLANTS. 571 
brown spines 7 mm. or less in length: leaves solitary or the upper 
geminate, thin, elliptic-ovate, 4 to 9 cm. long, 2 to 3.5 cm. broad, deeply 
sinuate-pinnatifid into 5 or 7 unequal oblong or obovate entire or un- 
dulate obtuse lobes ; above green and thinly pubescent with appressed- 
stellate hairs, beneath slightly more pubescent, especially on the promi- 
nent sometimes sparingly short-setulose nerves ; petioles slender, 1 to 3.5 
em. long, often sparingly setulose: peduncles lateral, 5-10-flowered, 
becoming 6 or 7 cm. long: calyx campanulate, in the staminate flower 
unarmed, in the pistillate with slender spines 5 mm. or less in length, 
the 5 lance-subulate teeth 8 or 9 mm. long: corolla 4 or 5 cm. broad, 
plicate, stellate-tomentose without, apparently sky-blue, slightly irreg- 
ular, deeply cut into 5 ovate-lanceolate curved segments: anthers 
yellow, subsessile, in the staminate flower the two shorter ones 1 to 
1,5 em. long, the three longer 3 to 3.5 cm. long, strongly curved above ; 
in the hermaphrodite flower the two short anthers scarcely 1 cm. long, 
the three long ones straight, 1.5 cm. long: style 2.5 cm. long, strongly 
curved above: fruit globose, 1.25 cm. in diameter, in herbarium speci- 
mens olive-brown ; the fruiting-calyx deeply cleft, excluding the fragile 
elongated lance-subulate tips, about half the height of the fruit. — Sin- 
ALOA, Topalobampo, Sept. 15-25, 1897 (Hdw. Palmer, no. 178). 
Related to the common Solanum amazonium, Ker, and to S. obtusi- 
Jolium, Mart. & Gal. From S. amazonium it differs principally in its 
thin deeper-lobed and greener leaves, its longer stamens and shorter 
fruiting-calyx. From of S. obtusifolium as described it is separated 
y its larger leaves which are not “ cordate-ovate,”’ and its much larger 
flowers, 
Datura villosa. Annual, 1.5 to 3 dm. high: young branches and 
petioles villous with long white hairs: leaves 0.5 to 1 dm. long, petio- 
late, ovate, sinuate-angulate or deeply cut, villous above and especially 
beneath on the veins, becoming glabrate: calyx cylindric, 2.5 to 3.5 em. 
long, somewhat villous, with 5 short teeth: corolla narrow, twice ex- 
ceeding the calyx, pale below, purplish at edge, with 5 short lance- 
subulate teeth: capsule puberulent, about 5 cm. across, armed with 
Comparatively few coarse and unequal flat prickles. — Jatisco, Bolafios, 
Sept. 10-19, 1897 (J. WV. Rose, no. 3680): San Luts Porost, in 
sand near the city of San Luis Potosi, 1876 (J. @. Schaffner, no. 706) ; 
in the mountains at 1,850 to 2,450 m., 1878 (Parry & Palmer, no. 658, 
in part). — Related to D. quercifolia, HBK., with which it has been 
confused. 
CestruM ELEGANS, Schlecht., var. truncata. Like the species as 
