SPECIES OF PHOLIOTA OF THE REGION OF THE 
GREAT LAKES 
Edward T. Harper. 
The genus Pholiota includes plants with rusty or ochraceous 
spores, a well developed annulus, adnate or adnexed lamellae 
and a fleshy stem. These features are not absolutely distinctive 
of all the species for the color of the spores runs into the purple 
brown of Stropharia and the veil is sometimes as scanty as 
the fibers of a Flammula or clings to the margin of the pileus 
as in the genus Hypholoma. 
Individuals in the same species often vary greatly and some 
different species are connected by numerous forms. As far as 
possible we have chosen characteristic plants for the photo¬ 
graphs. Striking divergences from published descriptions have 
been noted but we have not made any new species when our 
plants failed to agree in all minor points with the descriptions 
of the species to which we have referred them. 
We have endeavored to put together those species most alike 
in habit, structure and general appearance, arranging them 
under a series of types. The system of Fries has been fol¬ 
lowed. His three main divisions: plants growing on the 
ground, on wood, and among mosses are convenient though by 
following them some species like Pholiota terrigena and Pholi¬ 
ota angustipes are thrown out of their true relationship and the 
two similar types represented by Pholiota togularis and Pholi¬ 
ota marginata are widely separated. We have neglected the 
divisions based on the shade of color of the spores entirely as it 
is impossible to put similar plants together with that arrange¬ 
ment. 
( 470 ) 
