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Polypore spore print tips

Like mushrooms, polypore fungi release spores from their under-surface (hymenium) that can be collected, either naturally below the fruit body or artificially on a paper or glass surface - a 'spore print'. However, there are a few tricks with polypores.

Most polypore have colourless spores, and produce a white spore print. The spore print COLOUR is therefore of limited utility for some groups (spore size, shape, ornamentation and iodine / dye reactions provide many characters, but require a high-powered compound microscope, at least 400X magnification, preferably 1000X). However in other polypore groups (especially the rusty-brown-fleshed Hymenochaetaceae, which includes Inonotus, Phellinus and their relatives) the spore print can be white, yellow or brown, and is extremely useful for distinguishing between these otherwise feature-poor fungi. So white spore deposits are useful to know, but yellow to brown is more diagnostic, as they are the more rare ...more ↓

Posted on August 10, 2020 16:10 by mattbarrett mattbarrett | 0 comments | Leave a comment
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About

Polypores are an informal group of mostly wood-rotting fungi with usually tough fruit-bodies. Australian polypores are poorly known, and consequently difficult to identify. This project is a place to collate information specific to identifying polypores, in particular capturing enough information to enable identification. A few moments to photograph different aspects, and the host ...more ↓

Mini mattbarrett created this project on August 10, 2020
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