166 SOLANACEAE. Vor. III. 
5. Solanum Térreyi A. Gray. Torrey’s 
Nightshade. Fig. 3721. 
S. Torreyi A. Gray, Proc. Am. ‘Acad. 6: 44. 1862. 
Perennial, hoary with a stellate pubescence of 
8-12-rayed hairs, more or less armed with small 
subulate prickles. Leaves ovate in outline, 3’-6’ 
long, sinuately 5-7-lobed, the lobes entire or undu- 
late, obtuse; cymes appearing terminal, soon evi- 
dently lateral, branched, loosely several-flowered ; 
flowers showy, large; calyx-lobes ovate, abruptly 
long-acuminate, persistent at the base of the 
berry; corolla violet, 1’-13’ broad, its lobes ovate, 
acute; berry globose, smooth and glabrous, 1’ or 
more in diameter, yellow when ripe. 
On dry plains and prairies, Kansas to Texas. Re- 
ported from Missouri. at 
6. Solanum rostratum Dunal. Sand 
Bur. Beaked or Prickly Nightshade. 
Buffalo-bur. Fig. 3722. 
Solanum rostratum Dunal, Sol. 234. pl. 24. 1813. 
S. heterandrum Pursh, Fl. Am. Sept. 156. pl. 7. 
i814. 
Annual, densely stellate-pubescent with 5-8- 
tayed hairs, usually copiously armed with 
yellow subulate prickles; stem erect, branched, 
1°-23° high. Leaves ovate or oval in outline, 
irregularly pinnately 5-7-lobed or 1I-2-pinna- 
tifid, 2’-5’ long, petioled, the lobes mostly 
oblong, obtuse; flowers racemose, yellow, about 
1’ broad; racemes lateral; pedicels stout, 3-6” 
long, erect both in flower and fruit; calyx 
densely prickly, surrounding and wholly en- 
closing the berry, the prickles becoming as 
long as the fruit, or longer; calyx-lobes lan- 
ceolate, acuminate; corolla about 1’ broad, 
slightly irregular, its lobes ovate, acute; sta- 
mens and style declined, the lowest stamen 
longer with an incurved beak; fruit, includ- 
ing its prickles, 1’ in diameter or more. 
ba 
On prairies, South Dakota to Texas and Mexico. Occasional in waste places, Ontario to New 
Hampshire, Tennessee and Florida, adventive from the west. Texas-nettle. Prickly potato. May-~ 
Sept. The original food of the Colorado beetle. 
7. Solanum citrullifolium Braun. Melon- 
leaved Nightshade. Fig. 3723. 
Solanum citrullifolium Braun, Ind. Sem. Frib. 1849. 
Annual, glandular-pubescent, or a few 4-5-rayed 
hairs on the leaves, copiously armed with slender 
yellow subulate prickles, diffusely branched, 1°-3° 
high. Leaves irregularly bipinnatifid, resembling 
in outline those of the watermelon, 2’-6’ long; ra- 
cemes lateral, several-flowered; flowers 1’-1}’ broad, 
violet; stamens and style declined; lowest anther 
violet, larger than the four other yellow ones; co- 
rolla somewhat irregular, its lobes ovate, acuminate}; 
fruit similar to that of the preceding species. 
In dry soil, Iowa and Kansas to Texas, Mexico and 
New Mexico. Referred, in our first edition, to S. 
heterodoxum Dunal. July-Sept. i 
