Ganoderma is a genus of polypore fungi in the family Ganodermataceae that includes about 80 species, many from tropical regions. They may be called shelf mushrooms or bracket fungi and have a high genetic diversity. Ganoderma can be differentiated from other polypores because they have a double-walled basidiospore. They are used in traditional Asian medicine.
Description
Ganoderma are characterized by basidiocarps, which are large, perennial, woody brackets also called "conks". They are lignicolous and leathery either with or without a stem. The fruit bodies typically grow in a fan-like or hoof-like form on the trunks of living or dead trees. They have double-walled, truncate spores with yellow to brown ornamented inner layers.
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Early growth stage
Taxonomy
The genus Ganoderma was established as a genus in 1881 by Karsten and included only one species, G. lucidum (Curtis) Karst. Previously, this taxon was characterized as Boletus lucidus Curtis (1781) and then Polyporus lucidus (Curtis) Fr. (1821) (Karsten 1881). The species P. lucidus was characterized by having a laccate (shiny or polished) pileus and stipe, and this is a character that Murrill suspected was the reason for Karsten's division because only one species was included, G. lucidum . Patouillard revised Karsten's genus Ganoderma to include all species with pigmented spores, adhering tubes and laccate crusted pilei, which resulted with a total of 48 species classified under the genus Ganoderma in his 1889 monograph. Until Murrill investigated Ganoderma in North America in 1902, previous work had focused solely on European species including, for example, G. lucidum, G. resinaceum Boud. (1890) and G. valesiacum Boud. (1895).
Ganoderma applanatum - Also known as the artist's conk.
Ganoderma adspersum - Infestation of this species was the main factor in the loss of the Anne Frank Tree.
Ganoderma lucidum - A polypore with limited distribution in...
