MICHIGAN ACADEMY OF SCIENCE. 
215 
UNREPORTED MICHIGAN FUNGI FOR 1910. WITH OUTLINE 
KEYS OF THE COMMON GENERA OF BASIDIO- 
MYCETES AND ASCOMYCETES.* 
C. H. KAUFFMAN. 
The field study of Michigan fungi during the past season was largely 
limited by the severe drought during July and August. Collections were 
made at Ann Arbor in the spring and during October and November. 
The month of September was spent at New Richmond, a village on the 
Kalamazoo River, south of Holland. Copious rains during this month 
made it possible to get quite a fair idea of the fall fungous flora of the 
lower Kalamazoo River, in a region once covered by magnificent white 
pine forests. Here one could pass readily from the sandy plains to clay 
ravines, or from the elm swamp to cedar and tamarack swamps, and 
these variations in soil and forest makes this region a veritable paradise 
for the mycologist. Hemlock and beech abound and the marks of a 
Northern flora are in evidence. 
This paper is again composed of two parts: First, a list of hitherto 
unreported species along with some additional notes on species of Rus- 
sulas; second, outline keys to the common genera of Basidiomycetes and 
Ascomycetes. These were prepared for use in my classes, and have been 
tested to that extent. There are no doubt various shortcomings, yet 
they seemed very useful, and it was suggested that I put them into some 
available form. The polyporaceae keys have been .taken as far as the 
species with special regard for their usefulness in the field. It is hoped 
that they will be useful to those students who do not yet have access 10 
the larger works. 
I. UNREPORTED SPECIES. 
ASCOMYCETES. 
ffelvellaceac. 
Gyromitra brunnea Underwood. On the ground, low woods of maple 
and oak. Waslit. Co., April 28, fide C. IT. K. 
Gyromitra gigas (Kromb.) Cke. var. One specimen of a large Gyro- 
mitra was found on May 5, in low wet elm woods near Ann Arbor, 
which has some aberrant characters. The description follows: 
Hymenophore 20 cm. broad, 15 cm. high, coarsely and densely 
lobed in ii regular pleats and folds, more or less attached to stem 
below, rufous-cinnamon inclining to umber. Stem 8 cm. long, 
S cm. broad, covered with a snow-white pruinosity, somewhat 
grooved to lacunose, solid, or slightly cavernous with small cavi- 
ties. Asci about 400 micr. long, 18 micr. broad, S-spored. uni- 
seriate. Paraphysis septate, filled with brown granules, tapering 
•Contribution No. 127 from the Botanical Department of the University of Michigan 
