9 AMERICAN VINES. 



varieties which they brought back, and which have been 

 cultivated since 1893 and 1895, have a vigour and strength 

 of development previously unknown in V. Monticola. We 

 cannot yet pronounce an opinion on their 

 cultural value and adaptation, but on ac- 

 count of their qualities of resistance to 

 phylloxera, chlorosis, and drought, which 

 Fig. 46. Seed of the species and the weak forms already cul- 

 v. Monticola. tjvated in France have shown, on account, 

 also, of the dry, unfertile, and calcareous soils, in which the 

 vine grows in Texas, we may hope that the vigorous 

 forms will, in future, have a great value for calcareous 

 and chalky dry soils. The V. Monticola No. i, which 

 has been cultivated at the School of Agriculture, Monti 

 pellier, for three years already, shows an exceptional 

 vigour, and remains - of a fine green colour in a soi- 

 liable to cause chlorosis. The V. Monticola Salomon 

 resembles it in its characters, but appears to be even more 

 vigorous. 



The V. Monticola (V. Texana or V. Foexeana) occurs 

 in a very limited geographical area in the centre of 

 Texas, where it forms a circle in almost all mountainous 

 country. The V. Monticola grows exclusively on low moun- 

 tains, and only on the upper part of their slopes, or on the 

 extensive table-lands crowning the hills of Texas. The 

 climatic characteristics of these regions is an extreme 

 drought; with a fall of temperature sometimes very great 

 in winter, 20 C., and temperatures rising up to 42 C. 

 The V. Monticola always remains, even in the most arid 

 and unfertile soils, of a fine green shining colour. 



The V. Monticola does not grow, like V Berlandieri, in 

 white chalky soft and friable soils, but if grows in soils 

 where the percentage of limestone is fairly high, and which 

 have an analogy with the Jurassic groies of the Charentes, 

 in which most other grafting-stocks become chlorosed. 

 The soil of the table-lands of the county of Bell, in Texas, 

 where V. Monticola is most abundant, is constituted of 

 laminated (or bladed) fragments of fairly compact lime- 

 stone, of a lithographic texture, slight yellow or whitish, 

 with siliceous incrustations ; they are intermixed with mellow 

 blackish soil, containing numerous small fragments o soft 

 limestone and a few siliceous concrteions. According to 

 analyses made by B. Chauzit, one of these Texas soils con- 



