North American species of Mycena.

EUMYCENA: TYPICAE 259 above the white-strigose base, moist to subviscid to the touch but no gelatinous surface layer demonstrable in dried specimens, concolorous with the pileus or paler above, often "avellaneous" except for the whitish;apex. Spores narrowly ellipsoid, 10-12 X 5-6 A, amyloid; basidia fourspored, 28-30 X 7-8 u; cheilocystidia very numerous, ventricose with a rather abruptly tapered neck, the elongated portion occasionally forked, the ventricose portion smooth, 36-54 X 9-14,; pleurocystidia abundant, 65-95 X 10-14,, ventricose to nearly equal, with a long, cylindric neck usually tapered abruptly to a point, smooth, the apices sometimes forked or branched; gill trama dark vinaceous brown in iodine; pileus trama with a thin adnate pellicle over the surface, the tramal body composed entirely of inflated hyphal cells, subhymenium very narrow, becoming vinaceous brown beneath the pellicle in iodine; stipe tissue dark vinaceous brown in iodine. Habit, habitat, and distribution.-Gregarious on needle beds under hemlock in Washington during October and under redwood in California during November. Material studied.-Smith, 9044. Kauffman, 1925, Lake Quinault, Washington. Observations.-The only specimens seen in the fresh condition were those from California. They were mature and, although they had endured a heavy rain, were still in good condition. No indications of a white milklike juice or latex were noted when the stipes were fractured. The stems were slightly sticky to the touch, but no gelatinous layer was observed in sections. If originally present, the gelatinous layer must have been washed off by the rain, as sometimes happens to carpophores of M. quinaultensis. The question of the subgeneric position of the species still remains unsettled. Ktihner (1938) su ggests a relationship with M. galopus. I have examined the stipes of some specimens of the type collection and find that they possess scattered hyphae with granular contents similar to those found in M. galopus. This, when considered in connection with the spores ard eystidia, might lead one to place M.fusco-ocula in synonymy with M. galopus. Because of certain discrepancies I do not believe that such a conclusion is justified at present. Kauffman's notes describe the stem as subviscid and elastic, and he distinctly mentioned young and'old carpophores. He did not mention a milklike juice, and it i's'reasonable to assume, since he was working on a monograph of Mycena at the time he collected his material, that he checked that

/ 740
Pages

Actions

file_download Download Options Download this page PDF - Page 259 Image - Page 259 Plain Text - Page 259

About this Item

Title
North American species of Mycena.
Author
Smith, Alexander Hanchett, 1904-
Canvas
Page 259
Publication
Ann Arbor,: Univ. of Michigan Press
[1947]
Subject terms
Mycenae (Extinct city)

Technical Details

Link to this Item
https://name.umdl.umich.edu/agk0806.0001.001
Link to this scan
https://quod.lib.umich.edu/f/fung1tc/agk0806.0001.001/277

Rights and Permissions

The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff at [email protected]. If you have concerns about the inclusion of an item in this collection, please contact [email protected].

Manifest
https://quod.lib.umich.edu/cgi/t/text/api/manifest/fung1tc:agk0806.0001.001

Cite this Item

Full citation
"North American species of Mycena." In the digital collection University of Michigan Herbarium Fungus Monographs. https://name.umdl.umich.edu/agk0806.0001.001. University of Michigan Library Digital Collections. Accessed May 13, 2025.
Do you have questions about this content? Need to report a problem? Please contact us.