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Rhodocybella: A New Genus in the Entolomataceae

Timothy J. Baroni and Ronald H. Petersen
Mycologia
Vol. 79, No. 3 (May - Jun., 1987), pp. 358-361
DOI: 10.2307/3807456
Stable URL: http://www.jstor.org/stable/3807456
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Rhodocybella: A New Genus in the Entolomataceae
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Abstract

A new genus in the Entolomataceae is described from North America. While in many respects it is microscopically similar to Rhodocybe Maire, Rhodocybella differs markedly from Rhodocybe in three important features. Rhodocybella produces basidiomes with cupulate pendant pilei which are laterally attached, the hymenophore is smooth or produces a few rudimentary lamellar folds, and the hyphae of the pileipellis form knobby to subdiverticulate projections. These features are not found in members of Rhodocybe. Rhodocybella rhododendri has only been collected from the surface of the periderm of living Rhododendron maximum L. stems after periods of heavy rainfall.

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