THE VULPINA GRAPES 103 



species. Linnaeus described a Ft fa's vulpina ("fox-grape") in 

 I7.~>;i, and preserved specimens of it in his herbarium. Our 

 grapes have been so much misunderstood that there have 

 been various guesses at the identity of Linnaeus' specimens. 

 It has been thought that they represent the true fox-grape, 

 or ntis Labrusca. Again it was thought that they are the 

 muscadine type, and the name vulpina was once used in 

 place of Michaux's rotundifolia (page 98). Then for many 

 years the name was dropped altogether. Finally Planchon, 

 the most recent monographer of the genus, declared Lin- 

 naeus' specimens to be the Ft' fa's riparia of Michaux, although 

 he did not substitute the name vulpina for the more recent 

 ripai'ia. Professor Britton later examined the specimens, and 

 also pronounced them to be V. riparia. In the above mono- 

 graph I therefore used the older name (V. vulpina). Since 

 that time, however, I have myself examined Linnaeus' speci- 

 mens in London, and find that he had specimens of two spe- 

 cies under the name of vulpina. On one sheet are two 

 leaves, one marked V. rinifera and the other V. vulpina, 

 both in Linnaeus' hand. The former is the wine -grape (V. 

 rinifera), and the latter is the river-bank grape ( V. riparia). 

 Another herbarium sheet, however, has a large flowering 

 specimen, labelled, in Linnaeus' hand, F. vulpina, and this 

 is the frost-grape ( V. cordifolia). It would have been better 

 to have taken this latter specimen as Linnaeus' type, and to 

 have made the name vulpina supplant cordifolia; but since 

 the other disposition has been made of the case, I shall not 

 make the change. 



1'itis Treleasei, Munson. Plant shrubby and much branched, 

 climbing little, the small and mostly short (generally shorter 

 than the leaves) tendrils deciduous the first year unless find- 

 ing support, internodes short, the diaphragms twice thicker 

 (about -j^-inch) than in V. vulpina and shallow-bicon- 

 cave: stipules less than one quarter as large as in V. 

 vulpina: leaves large and green, very broad-ovate, or even 

 reniform- ovate (often wider than long), thin, glabrous and 

 shining on both surfaces, the basal sinus very broad and 

 open and making no distinct angle with the petiole, the 

 margin unequally notch-toothed (not jagged, as in F. vul~ 



