100 DECADES OF FUNGI. 
207. M. pithyophilus, Berk. and Curt. ; pileo e convexo plano-umbi- 
licato sulcato-striato brunneolo ; stipite insititio solido concolore pulveru- 
lento-furfuraceo; lamellis fusco-carneis subdecurrentibus. Curt. No. 1327. 
AB. On large pine leaves. South Carolina. July, 1847. 
Pileus 4 of an inch broad, at length nearly plane, umbilicate, im- 
presso-striate, dry, submembranaceous, whitish brown. Stem 4 an inch 
high, scarcely half a line thick, firm, solid, nearly equal, pale or brownish 
pulverulent, clothed towards the base with minute furfuraceous scales. 
ills brownish-carneous, unequal, forked, subdecurrent, undulated. 
Agreeing in habit with M. fwtens, but the stem is more opake, and 
the gills are by no means annulato-adnexed. The stem of all the 
specimens of M. fætens which have been inspected, including the ori- 
E specimens of Sowerby, are nearly, if not quite, smooth. 
208. M. spongiosus, Berk. and Curt.; pileo plano albido-fusco ; 
stipite pulverulento basi incrassato spongioso fulvo-villoso ; lamellis 
albidis subeonfertis. Curt., No. 125 
Has. On decaying leaves in Mosis: South Carolina. June, 1847. 
Pileus 1—} an inch broad, whitish brown, darker in the centre, plane, 
obtuse. Stem 14 inch high, brown, furfuraceo-pulverulent, much 
twisted, incrassated at the base, and clothed with tawny villous flocci. 
Gills broad, dull white, rather crowded, slightly adnate. 
Allied to the two foregoing species, but differing very much in the 
nature of the stem, which is by no means inserted into the matrix. 
209. M. similis, Berk. and Curt. ; pileo membranaceo plicato opaco 
albido; stipite gracili elongato nido fusco; lamellis paucis latis ad- 
nexis venoso-connexis albidis. Curt., 
Has. On twigs. South Carolina. 
Gregarious. Pileus 2—3 lines broad, dull white, smooth, plicate, 
covered with minute wrinkles when dry. Stem 2 inches high, very 
slender, brown, shining, scarcely if at all pulverulent. Gills broad, 
ventrieose, adnexed, connected by a few veins. 
Nearly allied to M. than from which it differs principally 
in colour. 
210. Lentinus Ravenelii, Berk. and Curt.; pileo umbilicato sub- 
membranaceo striato squamuloso maculato ; diit curto tenui fur- 
furaceo-squamoso ; lamellis tenuibus subdistantibus dente-decurrentibus 
venoso-connexis. Curt., No. 1706. 
Has. On decaying wood in wet places. Santee River, South Caro- 
lina. April. Mr. H. W. Ravenel. 
