104 THE EVOLUTION OP OUR NATIVE FRUITS 



pina), and indistinctly 3-lobed, the apex much shorter than 

 in V. vulpina: fertile flowers with very short recurved sta- 

 mens, sterile ones with ascending stamens: cluster small (2 

 to 3 inches long): the berries %-inch or less thick, black 

 with a thin bloom, ripening three weeks later than V. vulpina 

 when grown in the same place; thin-skinned; pulp juicy 

 and sweet; seeds small. Brewster county, S. W. Texas, and 

 New Mexico to Bradshaw Mountains, Arizona. Little known, 

 and possibly a dry-country form of V. vulpina. In habit it 

 suggests V. Arizonica, var. glabra, from which it is distin- 

 guished, among other things, by its decidedly earlier-flower- 

 ing and larger leaves with coarser teeth and less pointed 

 apex. 



Fitis Longii, Prince. Differs from vigorous forms of V. vulpina 

 in having floccose or pubescent young growth: leaves deci- 

 dedly more circular in outline, with more angular teeth and 

 duller in color, often distinctly pubescent beneath: stamens 

 in fertile flowers short and weak and laterally reflexed, those 

 in sterile flowers long and strong: seeds larger. N. W. Texas 

 and New Mexico. Regarded by French authors as a hybrid, 

 the species V. rupestris, vulpina, candicans, and cordifolia 

 having been suggested as its probable parents. It is vari- 

 able in character. In most of its forms it would be taken 

 for a compound of V. rupestris and V. vulpina, but the latter 

 species is not known to occur in most of its range. It was 

 very likely originally a hybrid between V. rupestris (which 

 it sometimes closely resembles in herbarium specimens except 

 for its woolliness), and some tomentose species (possibly with 

 V. Arizonica or V. Doaniana), but it is now so widely dis- 

 tributed, and grows so far removed from its supposed pa- 

 rents, and occurs in such great quantity in certain areas, 

 that for taxonomic purposes it must be kept distinct. It is 

 not unlikely that it has originated at different places as the 

 product of unlike hybridizations. Late French writers desig- 

 nate the jagged-leaved forms as V. Solonis, and the dentate 

 forms as V. Nuevo-Mexicana. This interesting grape was 

 found some thirty years ago by Engelmann in the Botanic 

 arden of Berlin, nnder the name of Vitis Solonis, without 

 history. Engelmann guesses (Bushberg Cat. ed. 3, 18) the 



