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Gerronema is a genus of small to medium sized lignicolous agarics with white, nonamyloid, basidiospores and decurrent lamellae. Typically the pileus has a shallow to deep central depression giving the umbrella-like to funnel-shaped pileus the appearance of a belly button, or a belly with a navel. Similarly shaped agarics are said to be omphalinoid in appearance in reference to a morphologically similar genus, Omphalina. Gerronema differ from Omphalina by the absence of incrusting or intraparietal pigments typical of Omphalina, the occasional occurrence of bright colors, such as yellow or green absent in Omphalina, by the restriction to decay of wood, and by the tough tissues composed of sarcodimitic hyphae. The species are primarily tropical, but also occur in Europe and eastern North America where they fruit during hot muggy, summer weather. One of the most common species in the eastern U.S.A. is Gerronema strombodes .
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Gerronema". A list of authors is available in Wikipedia.|