Spore Morphology:
Heimioporus
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Spore deposit olive brown. Spores alveolate-reticulate to reticulate or with pit-like perforations, extremely rarely rugulose and with crater-like pits, subfusoid, elongate-ellipsoid to short ellipsoid, lacking a suprahilar plage.

Possible Evolution of Morphology

Punctate


fruticicola
fruticicola
betula
betula

Punctate Reticulate


young mandarinus
young mandarinus
japonicus
japonicus

Alveolate Reticulate


ivoryi
ivoryi
retisporus
retisporus