VITIS 



Macoun, toN. Dak.,Kans. and Colo, and south to W.Va., 

 Mo. and N.W.Texas. B.M. 2429.— The commonest Grape 

 in the northern states west of New England, abundant 

 along streams. Variable iu the flavor and maturity of 

 the fruit. Forms with petioles, and under surfaces of 

 Ivs. pubescent sometimes occur Occasionally 

 hybridizes with F. habrtisca eastward the 

 brid being known by the tomentose young 

 shoots and unfolding leaves, and the darker foil 

 age, which is marked with rusty tomentum along 

 the veins of the less jagged leaves 



Var. prSBCOX, Bailey, is the June Grape of 

 Missouri, the little sweet fruits ripening in Julj 



10. TrelSasei, Munson. Plant shrubbv and 

 much branched, climbing little the small and 

 mostly short (generally 

 shorter than the Ivs.) ten- 

 drils deciduous the first year 

 unless finding support, in- 

 ternodes short, the dia- 

 phragms twice thicker 

 (about one-sixteentli in.) 

 than in V. vulpina and .shal- 

 low-biconcave: stipule.s le.ss 

 than one-fourth as large as 

 in V. vulpina: Ivs. large 

 and green, very broad-nvate 



(often wider than long), 

 thin glabrous and shining 

 on both surfaces, the basal 

 sinus very broad and open 

 and making no distinct an- 

 gle with the petiole, the 

 margin unequally notch- 

 toothed (not jagged as in V. 

 vitlpiiio) and indistinctly 3- 

 lobed, the apex much shorter 

 than ill I', rulphia : fertile 

 fls. with very short, recurved 



cending stamens: cluster 

 small (2 to 3 in. long) : ber- 

 ries >3 in. or less thick, black 

 with a thin bloom, ripening 

 three weeks later than I 

 vulpina when grown in the 

 siime place, thin-skinned 

 pulp juicy and 

 sweet: seeds 

 small. Brewster 

 county, S. W. 

 Texas and New 

 Mexico to Brad 

 shaw Mountains. 

 Arizona. - Little 



sibly a dry-coun- 

 frv "form of V. 

 rnlpinn. In habit it sug- 

 gests i'. ArizonicafV&T.gla- 

 hra, from which it is dis- 

 tinguished, among other 

 things, by its earlier flower- 

 ing and larger leaves with 

 coarser teeth and less 

 pointed apex. 



11. Lfingil, Prince ( F. 

 Solonis, Planch. ('. Nulvo- 

 Mexic()H(i,hemm.). Differs 

 from vigorous forms of ('. 

 vulpina in having floccose 

 or pubescent young growth: 

 Ivs. decidedly more circular 

 in outline, with more angu- 

 lar teeth and duller in color, 

 often distinctly pubescent 

 beneath: stamens in fertile 

 fls. short and weak and 



laterally reflexed, those in sterile fls. long and strong: 

 seeds larger. N.W.Texas and New Mexico. — Regarded by 

 French authors as a hybrid, the species V. rupestris, 



123 



VITIS 



1951 



vulpina, candicatis and cordlfolia having been sug- 

 gested as its probable parents. It is variable in char- 

 acter. In most of its forms it would be taken for a com- 

 pound of V rupestris and V. vulpina, but the latter 

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



very likely originally a hybrid between V. rupestris 

 lich it sometimes closely resembles in herbarium 

 cimens except for its woolliness) and some tomentose 



