RYDBERG: SOLANUM IN MEXICO AND CENTRAL AMERICA 151 
leaves of a paler color, these characters are by no means constant, 
and all kinds of grades exist. Apparently the first specimens col- 
lected of the white-flowered form were those by Bigelow at Puerto 
de Paysano, Mexican Boundary Survey 1008, in part. These 
were referred by Dr. Torrey* to S. Jamesii, probably because 
they had white flowers. The blue- or purple-flowered specimens 
from the Copper Mines were named by him S. Fendleri. 
The following specimens belong here. Those numbers with 
white flowers are so indicated. 
NEw Mexico: Mex. Bound. Surv. 1009; 1008, in part (white); 
Greene (in 1880); Rusby 313 (white); Wooton (in 1894, 1895 and 
1899); Metcalfe 838. 
ARIZONA: Wilcox (in 1892) ; Goodding 746, 264, (white) ; Griffiths 
& Thornber 102 (white); Blumer 1432 (white); 1566, 1570; 
Mearns 1534. 
Sonora: Mearns 1599, 1035, 1752. 
CHIHUAHUA: Pringle 667 (white); E. W. Nelson 6166, Town- 
send & Barber 173; Gregg 420. 
COAHUILA: Palmer 305. 
NuEvo Leon: Palmer 937, 938, in part (white). 
DurRanco: Palmer 484 (white 
co 
. SOLANUM DEMIssuUM Lindl. Jour. Hort. Soc. 3: 69, 70. 1848 
S. utile Klotzsch. All. Gart. Zeit.17: 315. 1849. 
S$. demissum Klotzschti Bitter, Repert. 11: 454. 1912.—12: 
454. 1913. 
S. demissum resembles S. Fendleri in habit, and Mr. W. F. 
Wight of Washington has regarded the latter as a synonym of the 
former. From Lindley’s figure on page 69 and Bitter’s descrip- 
tion of .S. utile, the corolla is different. In S. Fendleri the corolla 
is pentagonal, but in S. demissum the intrapetalar membranes are 
developed into lobes, making the corolla almost 10-angled, a char- 
acter which the species has in common with S. verrucosum. The 
characters by which Bitter tries to distinguish S. utile from S. de- 
missum seem to me trifling, and perhaps due to cultivation.  Bit- 
ter evidently knew S. utile only in the cultivated form. A cul- 
tivated specimen of S. utile is in the herbarium of Columbia Uni- 
versity. This agrees with Lindley’s figure of S. demissum. 
* Bot. Mex. Bound. Surv. 151. 1859. 
