108 AMERICAN VINES. 



stocks of the glabrous Riparias with large dull leaves, 

 amongst them are preferred the Riparia Baron Perrier, Riparia 

 with bronzed buds, Riparia with violet wood, Riparias Nos. 6 

 and 12 of the Meissner collection; (b) Riparias with large 

 entire leaves, shining and always thick, subdivided into (b') 

 Riparias with slightly round leaves, terminal lobe obtuse, 

 teeth sub-acute, the Riparia of the Indian Territory; (b"} Ri- 

 parias with long and shining leaves, generally goffered in 

 structure between the main ribs, such as Riparia Scupper- 

 nong, Riparia Grand Glabre, Riparia Portalis, or Gloire de 

 Montpellier. The coloration of the wood, the acuteness and 

 length of the teeth, and coloration of the ribs differentiate 

 the forms of this second group. It must be mentioned that 

 the nodes are frequently more flattened and the diaphragms 

 thicker than in the Riparias with dull leaves, characters 

 which, with the shining leaves, seem to suggest a cross with 

 V. Cordifolia, with which they grow side by side. The Ri- 

 parias with shining leaves, on account of their great vigour, 

 have the highest value as grafting-stock in good soils. 



The following table summarizes the classification of the 

 different forms of Riparias: 



I. TOMENTOSE RIPARIAS. 



1st. Large leaves. Ex.: Riparia Scribner, Riparia geant or 



tomentose of Mas de las Sorres, Riparia violet, etc. 

 2nd. With small leaves 



II. GLABROUS RIPARIAS. 



1st. With lobed leaves. Ex.: V. Riparia var. Palmata, etc. 

 2nd. With entire leaves. 



A. With small leaves. 



B. With large leaves. 

 a. With dull leaves. 

 a' With thin leaves. 



a" With thick leaves. Ex. : Riparia Bar on- Perrier, Riparia 

 with bronzed buds, Riparia with violet wood, Riparias 

 Nos. 6 and 12 Meissner, etc. 

 b. With lustrous and thick leaves. 



b f With rounded leaves. Ex. : Riparia Indian Territory, etc. 



b" With elongated leaves. Ex.: Riparia Scuppernong , 

 Riparia Portalis or Gloire de Montpellier, .Riparia 

 Grand Glabre, or Riparia No. ij Meissner, etc. 



The following table shows the respective value of the 

 principal forms of V. Riparia as to their vigour and 

 resistance to the phylloxera, from notes tak;en among the 



