Studies of the vegetative mycelium in the genus Agaricus L.: Fr. emend. Karst.

In this paper on microscopic and other studies on the vegetative mycelium of 17 species of the fen us Agaricus authors have report a number of new characteristics which seem to have taxonoaic significance for certain species within this genus.These are in particular presence of clamp connections, asexual speculation, relative DNA content and number of nuclei per cell, the last property possibly having also some ecological significance.Fluorescence of the vegetative mycelium was characteristic for all Agaricus species investigated.Most of the properties of vegetative mycelium of the reported Agaricus species were unknown so far.Authors conclude that using micromorphological criteria of the vegetative mycelium in addition to cultural properties, it seems to be possible to establish new taxonomical criteria in the genus Agaricus, being typical also for other Agaricaies.