Pileus p&mted to subexpanded, not umbonate, 
_ 0.5-2 cm, broad ; lamellae subcroelrded , M, 
Pileus conspi cously dex>ressed,4-6cm, broad, M, 
Surface of pileus white to plumbeous.umbi- 
^licate,l^; xnm,broadj stipe twisted , 6-8 cm, long, M, 
Surface of j’ileus pale-green, M, 
Surface of pileus isabelline or fulvous, some- 
times with grayish tints, 
Pileus 1-8 cm, broad, rarely larger in M, mon- 
tan* us , 
Pileus convex, rarely fully expanding, umbo - 
nate or gibbous. 
hinnuleiformiS 
clitocybiform/S 
tortix>es 
viridifuscus. 
M. 
Harrisii , 
Stipe 3 cm, long. 
Stipe 4-8 cm. long. 
Pileus gibbous; lamellae crowded. 
Stipe grayish-pulverulent. M. cinereialbus . 
Stipe glabrous , polished . M, jalapensis , 
Pileus prominently umbonate; lamellae not 
lae not crowded, M. obsoletus, 
Pileus plane or depressed, never umbonate. 
Stipe glabrous . 
Sbite, M. putredinis. 
Lamellae fulvous, M, coracicolor, 
stipe prumose, becoming subglabrous 
at times. 
Stipe 5 mm, thick; species terrestrialM, pruinosifolius 
Stipe 1-2 mm, thick; sx>ecies not ter- 
restrial. 
Stipe densely velvety-pruinose , 
Stipe whitish-pulverulent to 
subglabrous , 
Pileus 7-15 mm, broad, 
Pileus 2-4 cm, broad. 
Pileus plane, 
Pileus umbilicate or de- 
pressed , 
Pileus 4-7 cm. broad. 
Lamellae free; stipe 2.5 cm. long 
Lamellae adnate; stipe 5cm. long,'” 
Surface of pileus bay, chestnut, reddish, or 
ferruginous , 
Lamellae crowded and connected by consp$«ous 
cuous retculate veins. M. polyporoides , 
Pameliae distant, not conspicuously con- 
nected by veins, 
J* leus 4cm. broad, 
Pileus bay oor'che s tnu t , not more 
than 2 cm. broad. 
Stixie pruinous to glabrous, 2.5 cm. 
long. 
Stipe glabrous and shining from 
the first, 3-6 cm. long. 
Lamellae about 12-16 in number. 
M. cervinicolor, 
M. bahamensis, 
M. hemileucus, 
M. montanus. 
M, fibrosipes, 
M.subpruinosus . 
M. Berteroi ,’i 3 ox. 
6T>2-$ 
badius. 
U haematocephali/s . 
