82 AMERICAN VINES. 



explains the numerous hybrids Berlandieri X Cinerea, 

 recently introduced into France as pure forms of V. Ber- 

 landieri. 



The soils where V. Cinerea grows are the same as in the 

 case of V. Cordifolia. However, the Cinerea often grows 

 alone quite abundantly in low swampy and clay lands in the 

 states bordering the Gulf of Mexico. It is in soils of this 

 nature clay, clay-siliceous, or clay-calcareous that this 

 species thrives best in France, a fact which is in direct rela- 

 tion to the size of its roots. It is never found in the sandy 

 siliceous soils of America, and it thrives very badly in France 

 in very loose dry soils. 



We will not repeat for the V. Cinerea what has been 

 already said as to the relative value of the various forms of 

 V. Cordif oli i in differ jnt soils. The forms of V. Cinerea 

 peculiar to rich soils, tried in France in chalky soils, have 

 rapidly become yellow and withered. 



This species is difficult to propagate by cuttings; its resist- 

 ance to phylloxera for the forms already studied may be 

 represented as 15. As a species, the Cinerea is without 

 value for reconstitution, excepting perhaps in the case of 

 swampy clay soils, but it has yielded a great number of 

 hybrids, which may be of some value. 



V. RUPESTRIS. 



(a) Description (General Characters), Stump vigorous; 

 bushy habit ; trunk short and thick ; wood of the year dull 

 brown -red; sometimes shining chestnut -brown ; tendrils dis- 

 continuous; leaves, young: transparent and bright, russet- 

 brown; adult: small, wider than long, entire, folded inwards 

 along the mid-rib, the sides turned up, glabrous, thick; 

 petiolar sinus open and diminutive, indentations well-formed, 

 wide and obtuse; upper-face dark-green 

 and lustrous, under-face pale green and 

 glossy; bunch small; berries small, sub- 

 spherical, black-violet; pulp strongly red 

 Fig. 31. Seed of coloured, taste clean. Seeds (Fig. 31) 

 small, globular; beak thick and short; 

 chalaze long and slightly prominent; raphe rudimentary, 

 merging into the chalaze; roots long, slender, very hard, or 

 strong and fleshy (Rupestris du Lot). 



