Hydnum

Notes

Mushroom-like fruiting bodies with teeth rather than gills on underside, stalk often somewhat eccentric.
Ectomycorrhizal under Nothofagus and tea-tree.
Several subspecies have been described for H. crocidens which appear to be specialised with respect to substrate. Under tea-tree hosts are Hydnum crocidens var. badium (with a dark brown cap) and Hydnum crocidens var. crocidens (with a dirty-whitish cap with irregular reddish or rusty-brown patches). Under Nothofagus is Hydnum crocidens var. wellingtonii, similar in appearance to Hydnum crocidens var. crocidens, but with slightly larger spores.

Name Image Google
Images NZFungi Entry

Hydnum crocidens var. crocidens

A tea-tree specialist. Detail of teeth beneath cap.
See other photos for Hydnum crocidens var. crocidens at Google Images See details for Hydnum crocidens var. crocidens at the nzfungi website

Hydnum crocidens var. badium

The dark brown species found under tea-tree
See other photos for Hydnum crocidens var. badium at Google Images See details for Hydnum crocidens var. badium at the nzfungi website