144 



THE GRAPES OF NEW YORK. 



mediate between the parent species and also by the fact that up to date 

 no wild form of Bourquiniana has been found. 



Munson's derivation of the origin has not been accepted by either 

 French or American botanists. In this connection Bailey says: "It is 

 unassumable that a native grape distributed through the Mediterranean 

 region could have escaped for centuries the critical search of European 

 botanists and the knowledge of hundreds of generations of vignerons to 

 be discovered at last transplanted in the new world." Bush says: " This 

 reminds us forcibly of the 'Pedro Xirnenes ' (called also White Green Ries- 

 ling), which was believed to have been brought to Spain from the banks 

 of the Moselle by the man whose name it bears. Count Odart, a celebrated 

 ampelograph, wittily said: ' If he (Ximenes) took any he took all, for no 

 such vine grows now north of the Pyrenees.' Thus we also think: If Mr. 

 Bourquin took any of the above grapes he took all, for no Herbeniont or 

 Lenoir can now be found native in Europe." 



The only northern variety of grape of any importance that is supposed 

 to have Bourquiniana blood is the Delaware,' and in this case only a 

 fraction of Bourquiniana blood is presumably present. 



Bourquiniana can be propagated from cuttings more easily than the 

 typical Aestivalis but not so readily as Labrusca, Riparia or Vinifera. 

 Many of the varieties of Bourquiniana show a marked susceptibility to 

 mildew and black- rot; in fact, the whole Herbemont group is much inferior in 

 this respect to the Norton group of Aestivalis. The roots are somewhat hard, 

 branch rather freely and are quite resistant to phylloxera. 



19. VITIS BICOLOR Le Conte.= 



1. Le Conte, Proc. Phil. Acad. Nat. Set., 6:272. 1853. V. aestivalis (Darlington). 2. lb., 



U. S. Pat. Off. Rpt., 1857:230. Tvjo-colored-lcaved vine. 3. Munson, Soc. Prom. .\g. Sci. Rpl., 



1887:59. v. Argentifoma; Blue grape. 4. An. Hort., 1889:101. 5. Munson, Gar. and For., 



3:474. i8qo. 6. Munson, U. S. D. A. Pom. Bui., 3:12. 1890. 7. lb., .4m. Card., 12:585. 1891. 



'Am. Card., 12:584. 1891. 



^John Eaton Le Conte was born near Shrewsbury, Xew Jersey, in 17S4 and died at Philadelphia 

 in i860. In 181 7 he entered the army as a topographical engineer, and in 1S31 was retired with the 

 grade of major. Le Conte early became interested in natural history and his military expeditions 

 gave him ample opportunity for studying the flora and fauna of eastern America. He published a 

 number of important botanical papers, one of which was Tlur \'iiu-s of Xorth .\nu-ru:a published in 

 1854-55. His contributions to the genus Vitis will be found under that head. 



