Public Description of Heimioporus betula (Schwein.) E. Horak

Title: Public Description (Default)
Name: Heimioporus betula (Schwein.) E. Horak
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 Public Description (Default) [Edit]
 Draft For 2012/2013 Eol University Species Pages Initiative By Rick (Private)

Description status: Unreviewed

Taxonomic Classification:

Domain: Eukarya
Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Boletales
Family: Boletaceae

General Description:

Tall bolete with viscid orange to yellow cap at first. Yellow hymenophore. Lacerated alveolate-reticulate stipe.

Diagnostic Description:

Spores punctate, olive brown in deposit. Red, viscid cap at first, yellow hymenophore (unchanging), lacerated alveolate-reticulate stipe yellow at first and pale reddish with age.

The spore ornamentation is manifested generally as circular to semicircular pits that occasionally coalesce to form elongated holes. The apex is eroded and often described erroneously (from light microscope observations) as a ‘germ pore.’


Southern to central Appalachians, Ohio, Pennsylvania, New Jersey to Mexico


Fagaceae, Pinaceae forest.

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Described first as a Boletus, and placed by some there (Smith & Thiers), moved to Boletellus (Singer) and to Austroboletus (Horak)

Description author: Roy Halling (Request Authorship Credit)
Description editors: Nathan Wilson, walt sturgeon