THE VULPINA GRAPES 101 



Far. dissecta, Eggert, is a form with more ovate leaves and 

 very long teeth, and a strong tendency towards irregular 

 lobing. Missouri. 



cc. Leaves ovate in outline, with a mostly well marked sinus. 



D. Diaphragms (in the joints or nodes) thin: young shoots 

 not red; leaves not deeply lobed. 



Vitis monticola, Buckley. (Sweet Mountain Grape.) A slender 

 trailing or climbing plant (reaching 20 to 30 feet in height), 

 with very long and slender branches, the young growth 

 angled and floccose (sometimes glabrous), the diaphragms 

 plane and rather thin: leaves small and thin (rarely reaching 

 4 inches in width, and generally from 2 to 3 inches high), 

 cordate -ovate to triangular-ovate, with the basal sinus rang- 

 ing from nearly truncate-oblique to normally inverted-U- 

 shaped, rather dark green but glossy above and grayish green 

 below, when young more or less pubescent or even cobwebby 

 below, the blade either prominently notched on either upper 

 margin or almost lobed, the point acute and often prolonged, 

 margins irregularly notched with smaller teeth than in V. 

 rupestris: clusters short and broad, much branched: berries 

 medium or small (averaging about %-inch in diameter), 

 black or light colored, seedy, sweet; seeds large (about 

 %-inch long), and broad. Limestone hills in S. W. Texas. 

 This species has been the subject cff much misunderstanding. 

 Buckley's description seems to be confused, but his speci- 

 mens of V. monticola (in Herb. Acad. Philad.) are clearly the 

 small-leaved and glabrous species here designated. See, also, 

 Viala, "Une Mission Viticole en Amerique," 1889, 67; and 

 V. Berlandieri, below. The species has no value in its fruit, 

 but it may be useful as a stock on limy soils. 



Vitis vulpina, L. (Riverbank or Frost Grape.) Fig. 15, page 76. 

 A tall-climbing plant, with a bright green cast to the foliage, 

 normally glabrous young shoots, large stipules, and very 

 thin diaphragms: leaves thin, medium to large, cordate- 

 ovate, with a broad but usually an evident sinus, mostly 

 showing a tendency (which is sometimes pronounced) to three 

 lobes, generally glabrous and bright green below, but the 

 veins and their angles often A'^DI^i'h' HPiKgie 8 var '- 



. RY 

 UNIVERSITY Or CALIFORNIA 



