North American species of Mycena.

464 NORTH AMERICAN SPECIES OF MYCENA

Michigan I have found it in New York, Ontario, and California. It
varies considerably in color when both fresh and dried. If highly
colored fruiting bodies are collected they are likely to retain the
purplish cast if properly dried; however, pale fresh specimens when
dried nearly always lose what little color they possessed. Hence the
color of herbarium specimens is not too reliable a character. Since
the name Ellis gave this fungus antedates Murrill's name, it appears
best to use the former. I am retaining the species in Tricholoma.
Its relationships appear to me to be closer to T. persicolor and T.
ionides than to Collybia myriadophylla or any Mycena. I hesitate
to place M. syringea in synonymy with T. microsporum because the
stipe of the former was described as glabrous and because the specimens were collected in Jamaica. Singer (1942) has recently studied
a portion of the Ellis material and referred it to Lepiota. Further
studies on a number of specimens distributed in Ellis & Everhardt,
North American Fungi, 2003, should be made to determine whether
or not the issue was a mixture of species.
MYCENA TESTACEA Murrill
Mycologia, 8: 221. 1916
Prunulus testaceus Murrill, North Am. Flora, 9: 341. 1916.
"Pileus thin, broadly convex, gregarious, 8 mm. broad; surface
dry, tomentose, dark-testaceous, darker on the disk: lamellae adnate,
pale-testaceous, crowded, narrow, sharply dentate on the edges:
spores ellipsoid, smooth, hyaline, 7 X 3-4,: stipe cylindric, equal,
subglabrous, pale-testaceous, 1.3 cm. long, 1 mm. thick.
"Type collected in humus on the ground under tree ferns at
Morce's Gap, Jamaica, 1500 m. elevation, December 29, 30, January 2,
1908-9, W. A. & Edna L. Murrill 709 (herb. N. Y. Bot. Gard.).
"Distribution: Known only from the type locality."
The type material is scanty and poorly preserved. It was possible, however, to verify the spore size given by Murrill. The spores
are nonamyloid. The basidia appear to be four-spored and to measure 24-26 X 3-4 it. The sterigmata were very fine and difficult to
demonstrate. No pleurocystidia were seen. The cheilocystidia are
very long and filamentous, 51-73 X 3-4 (5) Au, hyaline, and somewhat
irregular in outline. The pileus and gill tramae turned yellow in
iodine. Neither revived well enough in either KOH or chloral hydrate to allow their structure to be accurately ascertained. Among