ENUMERATION OF FUNGI. 153 
be carefully kept in mind. I have no doubt that this is 
really a good genus, and the name of Persoon is entitled to 
priority. It is nearly allied to Craterellus. 
26. Stereum perlatum, (n. sp.); umbonato-sessile papyra- 
ceo-coriaceum, subtiliter velutinum umbrinum, zonis gla- 
bratis badiis, contextu umbrino sericeo ; hymenio cinereo. 
Cum. n. 2034. 
Pileus 8 inches broad, or more, by the lateral confluence 
of two plants. 
Five inches long, coriaceous, but thin and flexible, umbo- 
nato-sessile, dimidiate or suborbicular, entire, or with a 
few rounded lobes, suleate, slightly wrinkled longitudinally, 
finely velvety, by no means fasciculato-pilose, of a rich umber- 
brown, with smooth dark bay zones; margin extremely 
thin. Hymenium smooth, zoned from the furrows of the 
pileus, cinereous. Substance soft, silky, umber, but paler 
than the pileus, 
The nearest ally of this magnificent species appears to be 
Stereun Boryanum. 
27. Corticium Aydnatinum (n. sp.) ; resupinatum, mycelio 
fasciculato-piloso vulpino ambitu fimbriato, hymenio levi 
Ochraceo. Cum. n. 2187. 
On trunks covered with moss. 
Forming a somewhat orbicular patch, 3 inches in diameter 7 
the mycelium consisting of strigose tufts, of foxy-brown fila- 
ments, resembling the hymenium of an Hydnum. Hy- 
menium, in the specimen before me, sparingly developed, 
smooth, ochraceous. 
This curious plant appears to be allied to Corticium cri- 
nitum (Fr.) There is, however, a circumstance connected 
with it, which makes it very worthy of notice; viz., the 
presence of threads creeping over the fascicles of the my- 
celium, containing dark green rings, which easily separate 
from them when they are broken, and altogether resembling 
. those which are found in Dichonema and Cenogonium. Itis 
curious, too, that in the same collection there is a species o 
Dichonema, as 1 believe, described below, in which these 
