and that this circumstance, taken in conjunction with their being
found on the green leaf, may render the species liable to he
mistaken for one of the Entophytoe, allied to Phragmidium of
L i n k , {Aregma of F e i e s , and Puccinia of N e e s . ) He mentions,
also, that several botanists had even sent it to him as the
Sphcqria Trifolii of P e k s o o n .
There can he no doubt that it ought to be placed among
the persistent Byssoideoe, from every genus of which, its characters
prove it to be abundantly distinct.
Fig. ]. A leaf q f Trifolium pratense, with P. Trifolii, natural size. Fig. 2. A
small portion o f a leaf, with plants. Fig. 3. T ifts removed. Tig. 4. Fila-
ments and sporidia ;—magnified;
ili
