300 DECADES OF FUNGI. 1 
pallidiore hic illie purpurascente, medio tumido.  Lamellis 
crassis non connexis. purpureis postice latioribus decurren- 
tibus. 
On clayey soil in woodlands. T. G. Lea, Esq. Ohio, 
n, 261. 
. Pileus 2 inches across. Stem 21 inches high, $ of an inch 
thick in the centre, solid, above deflexo-squamose, occasion- 
ally equal. 
This species resembles in most points Ag. tyrianthinus ; 
but the gills are thick and distinct, resembling those of Ag. 
laccatus, and the mycelium (at least in the dry plant,) is white. 
The spores when dry are of a palish yellow, but Mr. Lea 
in his notes describes them when fresh as white. 
This, and the greater part of the following species, are 
described from a very rich collection of Fungi, consisting of 
above 280 species, from the neighbourhood of Cincinnati, 
kindly sent to Sir W. J. Hooker by T. G. Lea, Esq., and 
accompanied in many instances by very copious and va- 
luable notes. The collection has furnished a large quantity of 
interesting species, first made known in his memoirs by 
Schweinitz, some very rare European forms, and a consider- 
able number of new species, the most important of which 
are here described. I have myself corresponded on the sub- 
ject with their discoverer, and can bear witness to his great 
kindness and zeal; and I have no doubt that mycology will 
be further enriched by his labours. 
— 75. Agaricus (Mycena) Leaianus, n. sp.; pileo convexo 
umbilicato tenui margine striato minutissime miniato-virgato 
stipiteque longo deorsum tomentoso strigosoque aurantiis 
viscosis; lamellis distantibus ventricosis postice sinuatis ad- 
nexis aurantiis, coccineo-marginatis. 
On a dead trunk, Ohio, May. n. 214. T. G. Lea, Esq. 
Pileus rather more than 3 an inch broad, convex, umbili- 
cate, orange, clothed with a viscid cuticle, smooth, wrinkled 
when dry; margin striate and slightly virgate, with vermil- . 
lion flocci. Stem 2} inches high, not 1 line thick, orange; 
smooth and viscid above, with a few indistinct, dar ker specks, 
