OBSERVATIONS ON THE GENUS EPHEBE. 
125 
great propriety be regarded as the author of the genus Ephehe^ 
but that this rightly belongs to Nylander, who has not only de- 
scribed it according to the characters which it really possesses, but 
has also recently separated from it the genus Epheheia, Nyh, whicli 
was formerly mixed up with it, though distinguished by well- 
marked generic characters. 
ON VALSA VITIS. Schw. 
Having occasion to compare European with American specimens 
of Valsa vitis, I have observed that undoubtedly the two forms 
are quite distinct. The Valsa vitis, Schwz., of which I have a 
specimen from the late Dr. Curtis, is found, like the European, on 
the very small vine twigs, from one -eighth of an inch in diameter. 
But in this the pustules are very much elevated and larger, so as to 
appear much more prominently, the ostiola are thicker, but what is 
really of far more importance is, that the ostiola are decidedly sul- 
cate, whereas in the European form they are slender and not at all 
sulcate. The sporidia are very similar in both. The habit and 
external appearance of the two are so distinct, that I do not hesi- 
tate to affirm that the European form is not the Valsa vitis of 
Schweinitz. 
Fuckel, in his “ Symbolae Mycologicse ” (p. 199), gives Valsa 
vitis, Schw., of which he published specimens in “ Fungi Rhenani,” 
No. 607. And Professor Saccardo has since, in his “ Mycologiaa 
Veneta,” p. 133, pi. xiii., fig. 19-21, repeated the same, as proved by 
the specimens published by him in “ Mycotheca Veneta,” No. 186. 
Doubtless Fuckel named his specimens from the description, not 
having seen specimens of the American plant, from which the 
difference is manifest at a glance. 
In order, therefore, to prevent the perpetuation of this error, I 
have called attention to the points in which the two species so 
materially differ, and submit the following rectification of the 
species : — 
Valsa vitis. Schw. Syn. Car. No. 117. 
“ Corticem bullosum reddunt et in pustulam coalescunt.” Osti- 
olis latis sulcatis. Berk. ^ Curt., in “ Orevillea” (non Fuckelj. 
On small vine twigs. 
Valsa vitigera. Cooke in Herh. 
Pustulis minutis erumpentibus, vix bullatis. Ostiolis gracilis, 
paucis, l^vis. Valsa vitis Fckl., Sym. Myc.p. 199. Fungi Rhen., 
607. Sacc. Mycol. Venetce, p. 133, t. xiii, f. 19-21. Myc. Ven., 
No. 186 (Non Schweinitz.) 
On small vine twigs. 
Pustules smaller, less elevated, ostiola slender, not sulcate, and 
not so closely compacted as in the American species. 
M. C. Cooke. 
