112 THE GRAPES OF NEW YORK. 



Carolina, has published a bulletin ^ in which he recommends that the vines 

 be pruned and raised on a trellis as is customary with other grapes. He 

 gives figures to show that the damage to Rotund if olia vines is due to 

 the bleeding that follows pruning and that this bleeding may be obviated 

 by pruning in the fall or early winter. The success of such a practice 

 would undoubtedly place the culture of Rotund if olia varieties on a better 

 commercial footing. 



Rotundifolia is remarkably resistant to the attacks of all insects and 

 to fungal diseases. The phylloxera do not attack its roots and it is con- 

 sidered as resistant as any other, if not the most resistant of all American 

 species. It is grown from cuttings only with dilficulty. However, under 

 favorable circumstances, and with skilful handling, this is a successful 

 method of propagation. Under iinfavorable circumstances, or where only 

 a few vines are desired, it is better to depend on layers. As a stock upon 

 which to graft other vines this species has not been a success. Wylie 

 found great difficulty in crossing Rotundifolia with other species, and the 

 crosses did not thrive under cultivation. Lately Munson has introduced 

 several Rotundifolia hybrids. 



2. VITIS MUNSONIANA Simpson. 



I. (?) Rafinesque, 1830:17. V. pelt.^ta; I'. Floridana. 2. Munson. Am. Pom. Soc. Rpt., 

 1885:07. v. floridana; Florida grape. 3. lb., Gar. Moii., 28:140. 1886. V. floridana; I', pcl- 

 tata: Florida grape. 4. lb., Soc. Prom. Ag. Sci. Rpt., 1887:59. Everbearing grape. 5. lb.. Gar. 

 and For., 3:474, 475. iSqo. 6. lb.. U.S.D.A. Pow. B;;/.. 3:14. 1890. 7. Ih., Mich. Hort. Soc. 

 Rpt., 1893:116. Bird grape; Everbearing grape. 8. lb., Bush. Cat., 1894:20. Bird grape: Mustang 

 grape of Chapman. 9. Bailey, Gray's Syn. FL, 1:421. 1897. Mustang grape of Florida; Bird 

 grape: Everbearing grape. 10. Munson, Tex. Sta. Bid., 56:232, 241. igoo. Florida Bird grape. 

 II. Viala and Ravaz, Am. \'ines, 1903:42, 41^. 



Vine not very vigorous, a slender grower, usually running on the ground or over 

 low bushes. Canes slightly angular; intemodes short; tendrils intermittent, simple. 

 Leaves smaller and thinner than Rotundifolia and rather more circular in outline; not 

 lobed; teeth rather open and spreading; petiolar sinus V-shaped; botli surfaces smooth, 

 rather light green. Cluster with more berries but about the same size as Rotundifolia. 

 Berry one-third to one-half the diameter, with thinner and more tender skin; black, 



' S. C. Sta. Bid. 132. 1907. 



