JUN 1 7 1910 
The Ohio £A Naturalist , 
PUBLISHED BY 
The Biological Club of the Ohio State University. 
Volume X. 
JUNE, 1910. 
No. 8. 
TABLE OF CONTENTS. 
Stover— Notes on New Ohio Agarics 177 
Hopkins— New Varieties of Common Ferns 17!> 
Sterki— Winter-Buds of Spirodela polyrhiza (L) 181 
Gary— Naiades of Grand River, Ohio 183 
Gary— Naiades of Cedar Point, Ohio 183 
Schaffner— Xeropliytic Adaptations of Apocynum hypericifolium 184 
Schaffner— A Proposed List of Plants to be Excluded from the Ohio Catalog 185 
Dickey— Note on the Organization of the Biological Club of the O. S. U . 190- 
Dickey— Meetings of the Biological Club 192 
NOTES ON NEW OHIO AGARICS. 1 
Wilmer G. Stover. 
The following Agarics have not been previously reported 
from Ohio. All were collected near Oxford, Ohio, by the writer, 
unless otherwise noted. Most of them were determined or con- 
firmed at the New York Botanical Garden or at Albany and were, 
so far as possible, compared with specimens at those places, in 
some cases with type specimens. 
My thanks are due to Dr. W. A. Murrill and C. H. Peck for 
the privilege of examining specimens and other favors. 
The following notes are intended to present only the essential 
characters of the species named. For fuller descriptions the 
reader is referred to mushroom books. 
Lactaria rimosella, Peck. Pileus reddish-brown, dry, gla- 
brous, becoming rimose-areolate ; latex somewhat watery ; 
lamellae close, decurrent; stipe colored like the pileus. June. 
Plants identified by Miss G. S. Burlingham. North American 
Flora, Vol. 9, Part 3, Page 198. 
Russula luteobasis, Peck. Pileus red, becoming wholly yel- 
lowish or in the center only; lamellae equal, white or creamy 
yellow, adnexed; stipe stuffed, white above, yellow or orange- 
yellow at the base. August. Bull. Torr. Bot. Club, 31 • 179 
Apr. 1904. 
Russula crustosa, Peck. This plant is closely related to 
R. virescens (Schaeff) Fr. and is doubtless often reported under 
that name. The chief characters distinguishing it from R. vires- 
cens are the subviscid pileus, the striate margin, smooth disk and 
the small areolate scales of the pileus. It is more variable in 
LIBRARY 
vEW YOR» 
UOTANICAI 
GARDBN. 
