20 ON ANTHRACNOSE A NEW DISEASE OF THE VINE. 
like those I received from Monsieur Blavet. Perhaps the develop- 
ment of the Cladosporium and of the anthracnose may be attri- 
buted to the unusual rainfall of this year, and which may make 
these species formidable in wet seasons. 
I do not hesitate to consider the development of the Clado- 
sporium as the cause and not as the effect of the disease : this 
last hypothesis will not stand examination. This Cladosporium. is 
developed on plants in perfect health, and on portions which are 
not in the least decayed ; the same is the case with CL dendriticum , 
which attacks Pear trees and Service trees, and which may serve 
to corroborate what I have just stated. It may perhaps 
be interesting to state here that I found an allied species 
probably new to the French flora, last September. Numerous 
plants of Vincetoxicum officinale were growing on calcareous rocks, 
at a few feet from the fine cascade formed by the fall of the Doubs 
and called the “ Saint du Doubs.” 
The leaves of this plant showed on their lower surface a black 
down, caused by a parasitic fungus. Microscopical examination 
revealed the existence of a Cladosporium , of which the filaments 
escaped from the tissue of the leaf by the openings of the stomata ; 
the parenchyma was traversed by the mycelium, which, here and 
there, had formed knots or filaments felted together', probably the 
commencement of a second kind of fructification. It was the 
Cl. Bellynckii Westendorp, which that author has published in his 
Exsiccata. 
This species is closely related to the Cladosporium of the Vine 
and Rosaceas ; it deserves to be studied carefully as well as the 
others, as it would be interesting to know the form and nature of 
its other modes of reproduction. The genus Cladosporium in- 
cludes plants varying much from each other, and which all belong 
to the Ascomycetes. 
FUNGI OF CALIFORNIA. 
{Collected by Dr. H. W. Harkness and Mr. J. P. Moor.) 
By William Phillips, F.L.S. 
Having received a further consignment of fungi from Dr. Hark- 
ness and Mr. J. P. Moor, collected in California, chiefly belonging 
to the sections Myxomycetes and Discomycetes, I propose to give 
an account of such species as have not been recorded in my former 
papers. (“ Grevillea,” Yol. v., p. 35 and p. 113.) The ground 
searched by these gentlemen were the forests bordering the coast 
of the Pacific, in which the red wood {Sequoia semper virens) abounds, 
having an elevation of 4,500 feet above the level of the sea, and 
the Yosemite Valley, in which the big trees {Sequoia gigantea ) are 
found, having an elevation of 5,000 feet above the level of the sea. 
