124—NOTES ON TRICHOLOMA RUTILANS. 
Fig. ?5. 
Tricholoma rutilans, form with pectinate gills. 
During a trip that I made to Northern Michigan in the summer 
of 1899, I met specimens of a plant that I thought was this species, 
‘ but the gills were white, the edges thin and entire, and on my return 
home I felt more certain of the determination on looking up Cooke’s 
plate, which is a good representation of the plant I found, not only as 
to shape, size and markings, but (strange to say) as to color. Still 
Fries states “gills yellow, edges thickened and villose,” and Stevenson 
“gills yellow, the edges thickened, obtuse and floccose.” This sum¬ 
mer, in the same station, I found the plant more abundant and speci¬ 
mens with all the gills white, edges entire; specimens with the gills 
yellow, the edges of the gills pectinate with little processes that re¬ 
minded me of the cystidia which we sometimes note with the naked 
eye on the gills of Coprinus. Our photograph well shows them. These 
processes however, are not cystidia. Sometimes we notice specimens 
with only a few of the gills bearing these processes, the most of them 
being white and entire, and curious enough in these cases the few gills 
bearing these processes were yellow. There seems to be some connec¬ 
tion between these processes and the yellow coloring matter. The 
color of the stem also varies much, some were mostly white as shown 
in Cooke’s plate, some yellow, and rarely we met specimens with the 
stem purplish like the pileus. Since this plant is so variable, we do 
not question but that T. variegatum is a synonym. 
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