Murrill.’ Illustrations of Fungi 
3 
The above description was drawn from specimens collected in 
woods near Bronx Park, October, 1911. The species is widely 
distributed in woods and pastures and has many forms, one of 
which was figured in Mycologia for July, 1910. 
Melanoleuca sordida (Schum.) Murrill 
Tricholoma sordidum (Schum.) Fries 
Sordid Melanoleuca 
Plate 1 13. Figure 4. X 1 
Pileus thin, convex to plane or slightly depressed, subumbonate 
at times, often irregular, gregarious or cespitose, 3-7 cm. broad ; 
surface smooth, glabrous, pale-violet to avellaneous with ochrace- 
ous hues, usually fuliginous on the disk, margin naked, involute 
when young; context violaceous to whitish, mild, edible; lamellae 
sinuate to slightly decurrent, narrow, crowded, concolorous when 
young, fading with age ; spores ellipsoid, smooth, pale-rosy- 
ochraceous in mass, 7-8 X 4-5 u ; stipe eccentric at times, equal, 
firm, concolorous, glabrous, stuffed or hollow, 3-8 cm. long, 
4-8 mm. thick. 
This species is rarely reported, but apparently is widely dis- 
tributed though not abundant, occurring about manure piles and 
in cultivated ground where considerable manure is used. I have 
found it at two different places in the Garden and in great 
abundance under weeds on an old pile of cow manure just east 
of the Garden. It is much like Melanoleuca personata, with 
similar violet tints and spores colored exactly alike, but the cap- 
is thinner and differently colored, the gills duller and browner,, 
and the stem much slenderer and never bulbous. It also differs 
in its habitat and more or less clustered habit. American plants 
called Tricholoma nudum by some mycologists are doubtless re- 
ferable to this species. T. nudum seems to be confused with 
T. personatum in some parts of Europe. Rene Maire has re- 
cently erected a new genus Rhodopaxillus, for species of Tricho- 
loma having pale-rosy-ochraceous spores. 
