Gomphus pallidus  is Hawai`i's only cantharelloid species.  Not a true agaric, we
are showing it here because it is arguably the most common fleshy basidiomycete
encountered in guava thickets throughout the Hawaiian Islands.  First described from
Japan, the species was probably introduced into the Islands along with Japanese
vascular plants.  Although the species is ectotrophic with fagaceous trees in Japan,
in Hawai`i it is restricted to growth in association with Psidium  in the Myrtaceae.
Whether Psidium  is ectotrophic in Hawai`i is unknown.  The only potentially
ectotrophic basidiomycete taxa found in association with pure stands of Psidium  are
Gomphus pallidus  and several species of Ramaria .