FUSARIUM TREMELLOIDES.
Minute Fusarium.
C l ass a n d O r d e r CRYPTOGAMIA FUNGI, Linn— N a t . O r d . FUSIDOIDEJE, Grev.
Y if ;
f '
10
—EPIPHYTÆ, Link Part of FUNGI, De Cand.
GENERIC CHARACTER.
Planiw minutce, suhghbosce vel obhngw, nudts. Sporidia fusiformia, sessilia, non
Minute, subglobose or oblong, naked plants, composed of sessile, fusiform,
free, and jointless sporidia.
s p e c i f i c c h a r a c t e r .
F u s a r iu m tremelloides; minulum, ovale, gregarium, aurantiacum, subgelatino-
sum. Sporidiis longe attenuatis curvulis.
F. minute, oval, gregarious, orange, subgelatinous. Sporules long, slender,
and slightly curved.
F c s a r i u m tremelloides, Grev. Fl. Fdin. ined.
T remelea urticse, Pers. Syn. Fung. p. 628.— De Cand. Fl. Franf. v. 6. p. 28.
T remella sepincola, Willd. in Bot. Mag. 4. 182.
H ab. On dead stems of the Common Nettle, Urtica dioica; in the spring,
not rare. In the vicinity of Edinburgh it is very abundant.
This little plant rarely exceeds h a lf a line in length, and is mostly of an oval
form, varying greatly in its degree of convexity. I t is always gregarious,
and frequently covering the stem in such profusion, as to give it an orange
or pinkish colour at some distance. In its early state it is soft and
pulpy, b u t quickly hardens, and in old age shrinks and becomes corneous.
No covering whatever appears to be present, except the artificial one of
the epidermis of the stem on which it grows, and through which it makes
its way. Under a high power of the microscope, the sporidia are very
evident, and appear to compose nearly the whole substance, except a
small part at the b ase; they are very slender, somewhat curved, rather
long, and much attenuated at each extremity, and appear to be freely
diffused through the mass, lying, however, in a radiating direction from
the base towards the surface.
The only species of this genus th a t I can find described, are
Fusarium roseum of L in k in the Be rlin Magazine, and F.la-
teritium of N e e s , in his meritorious System der Pilze und
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