I t is rapid in its growth, and frequently spreads over the
whole fungus on which it is produced. Captain C a r m i c h a e l
correctly observes, that a “ curious struggle for existence may
be remarked between the two plants. The parasite first spreads
over tlie Thelephora, rendering it thin and flaccid, while the
latter throws out a new flake, which in its turn spreads over
and probably destroys the parasite.”
Fig. 1. S. atrum, on Thelephora vulgaris, nat. size. Fig. 2. A portion magni-
Jied. Fig. 3. Filaments (Sptoridia?) highly magnified.