Strobilomycetaceae

Strobilomycetaceae is a family of fleshy pore-bearing fungi in the order Boletales, first defined by E. J. Gilbert in 1931. ^[1] However it is not recognized in all systems of classification; those authorities which do not regard this group of mushrooms as a separate family assign them to the Boletaceae. ^[2]

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Originally Strobilomycetaceae just consisted of the type genus Strobilomyces and the genus Boletellus. Later the work of Rolf Singer gained more acceptance for the family and added Porphyrellus and also Phylloboletellus (whose members have gills rather than pores). Some authorities include even more genera; for instance the Interactive Catalogue of Australian Fungi ^[3] also includes Austroboletus, Chalciporus, Fistulinella, Gastrotylopilus, Rubinoboletus, and Tylopilus in Strobilomycetaceae . The relatively common genus Tylopilus has intermediate characteristics which create something of a problem for those who wish to define a separation of the two families. ^{[1] [4]} On the other hand a DNA study by Høiland K. (1987)^[5] indicates that Strobilomyces is only distantly related to more familiar boletes such as Suillus.

Singer defined Strobilomycetaceae by:

• the habit of the fruiting body, with a slender cylindrical stipe and a strongly convex cap,
• surface markings of the stipe,
• distinctive spore print colour (but species with olivaceous spores occur both in this group and in Boletaceae),
• large spores which are often ornamented,
• voluminous basidia and cystidia, and
• hymenophoral trama of Boletus subtype.

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