1158 ’Wisconsin Academy of Sciences, Arts, and Letters. 
white plant with floccose stem in Plate LXXXIII 0 we have 
labelled Hypholoma incertum though it is doubtful whether the 
form is separate enough to merit a distinct name; 
Illustrations of the species are common. Miurrill figures both 
the light and dark colored forms in Mycologia Jan. 1912. At¬ 
kinson, Mushrooms PI. 7 shows photographs of the floccose 
forms. Mcllvaine and Hard show very slender forms. Peck 
gives illustrations of Hypholoma incertum in X. Y. State Mus, 
Mem. 4 PL 60. 
A large number of forms more or less closely related to Hy¬ 
pholoma candolleanum or Hypholoma appendiculatum have re¬ 
ceived specific names. They differ chiefly in size, shape or 
color, in the split and cracked pileus, in the character of the 
universal veil (floccose forms) or in the character of the partial 
veil (annulate forms). 
a. Pileus rugose wrinkled. 
Hypholoma leucotephrum B. & Br. PL LXXXI. 
Plate LXXXI shows whitish plants with long flexuous stems 
which are deeply sulcate striate at the top. The pileus is rugose 
wrinkled. The plants grew in clusters on logs and on the 
ground at Sumner, Washington in June. The plant is illus¬ 
trated by Cooke, Pl. 548. The gills are whitish at first becom¬ 
ing grayish and almost black. The spores are 4—5x6— 8/a. 
The form agrees with Hypholoma candolleanum in the striate 
apex of the stem and with Hypholoma appendiculatum in the 
whitish color of the young gills though they have no incarnate 
tinge. Wle have collected the species also in Stuart West’s yard 
at Geneseo. Ills. 
b. Pileus cracked and split. 
Hypholoma cutifractum Pk. PL LXXXII. 
Under certain weather conditions the plants in this group 
vcrack and split and the cuticle of the pileus peels off in patches 
from the flesh. A cracked form which Peck calls Hypholoma 
