THE CINEREA GRAPES 109 



cordate -ovate (generally longer than broad), the sinus mostly 

 wide and obtuse, the margin small -notched (teeth much 

 smaller than in V. Berlandieri) or sometimes almost entire, 

 mostly distinctly and divaricately 3 -angled or shortly 3-lobed 

 towards the apex, the triangular apex large and prominent, 

 the upper surface cobwebby when young but becoming dull 

 dark green (not glossy), the under surface remaing ash-gray 

 or dun-gray webby-pubescent : stamens in sterile flowers 

 long, slender and ascending, in the fertile ones short, and 

 laterally recurved: cluster mostly loose and often straggling, 

 containing many small black berries, these only slightly if 

 at all glaucous, ripening very late, and after frost becoming 

 sweet and pleasant; seeds small to medium. Along streams, 

 mostly in limy soils, central Illinois to Kansas and Texas 

 and Mexico, also N. Florida. Readily distinguished from 

 V. (esttialis by the triangular-topped sharply 3-lobed ash- 

 gray leaves and the gray tomentum of the young growth. No 

 varieties in cultivation, but it hybridizes with V. rupestris 

 and V. Linsecomii. 



Far. Floridana, Munson. Growing tips rusty-tomentose, as 

 are sometimes the veins on the under sides of the leaves: 

 cluster longer- peduncled and more compound. Manatee 

 county, Florida, and apparently also in Arkansas ; not un- 

 likely a compound with V. cestivalis, but the leaves have the 

 characteristic shape of V. cinerea. Not to be confounded 

 with any form of V. Caribaa, because of the lobed tri- 

 angular-topped leaves and much larger teeth. 



Far. canescens, Bailey. A form with rounded or heart-like 

 leaves, the upper half of the leaf lacking the triangular and 

 3-lobed shape of the type. St. Louis, Missouri, and S. Illi- 

 nois, to Texas. 



cc. Plant scarcely climbing, the tendrils perishing if failing 



to find support. 



Vitis Arizonica, Engelm. (Canon Grape.) Plant weak, much 

 branched, with short internodes and thick diaphragms, 

 branchlets angled: leaves mostly small, cordate-ovate and 

 with a prominent triangular-pointed apex, the sinus broad 

 or the base of the blade even truncate, the teeth many and 

 small and pointed or mucronate, the margin either contin- 



