At the same place where I found H. porphyrosporum, another species new to me appeared, the recent named H. limbatum (see the reference). It is a member of section Denudata, thus having long cheilocystidia swollen at apex and constricted below, and belongs to the recent named subsection Clepsydroida, hence the cheilocystidia are also significantly swollen in the lower half, giving it an hourglass appearance. It is a species usually found under Quercus trees, as it was in all of my observations of this species (three times at this location and others at a location about 60-70 km north of this place; I only present one from each of these locations). It differs from the only other species in this subsection found here, H. cavipes, particularly in the smaller average spore Q.