GRAPE BOTANY 321 



Lincecumii has attracted considerable attention through 

 the work of H. Jaeger and T. V. Munson in domesticating it, 

 both of whom considered it one of the most, if not the most, 

 promising form from which to secure cultivated varieties for 

 the Southwest. The qualities which recommend it are : First, 

 vigor; second, capacity to withstand rot and mildew; third, 

 hardiness and capacity to endure hot and dry summers without 

 injury ; fourth, the large cluster and berry which were found 

 on certain of the wild vines. The fruit is characteristic because 

 of its dense bloom, firm, yet tender texture and peculiar flavor. 

 The cultivated varieties have given satisfaction in many sec- 

 tions of the Central Western and Southern states. Like 

 ^Estivalis, it is difficult to propagate from cuttings. 



The north-Texas glaucous form of this variety mentioned in 

 the technical description above is the V. cestivalis glauca of 

 Bailey. This is the type of Lincecumii that Munson has used 

 in breeding work. 



Vitis cestivalis Bourquiniana, Bailey. Southern ^Estivalis. 



Bourquiniana differs chiefly from the type in having thinner 

 leaves ; the shoots and under side of the leaves are only 

 slightly reddish-brown in color; the pubescence usually dis- 

 appears at maturity ; the leaves are more deeply lobed than 

 is common in ^Estivalis; and the fruit is larger, sweeter and 

 more juicy. Bourquiniana is known only in cultivation. 

 The name was given by Munson, who ranks the group as a 

 species. He includes therein many southern varieties, the 

 most important of which are : Herbemont, Bertrand, Cun- 

 ningham and Lenoir, grouped in the Herbemont section ; and 

 Devereaux, Louisiana and Warren, in the Devereaux section. 

 Munson has traced the history of this interesting group and 

 states that it w r as brought from southern France to America 

 over one hundred fifty years ago by the Bourquin family 

 of Savannah, Georgia. Many botanists are of the opinion 



