STUDIES IN COPRINUS-IV - COPRINUS SECTION COPRINUS - SUBDIVISION AND REVISION OF SUBSECTION ALACHUANI

Coprinus section Coprinus is defined and delimited to comprise four su bsections: Atramentarii, Coprinus, Lanatuli and Alachuani. A key to th e subsections is given as well as a key to the species of subsection A lachuani known from the Netherlands or to be expected in the Netherlan ds on account of records from neighbouring countries. Three new specie s, Coprinus epichloeus, Coprinus fluvialis and Coprinus sclerotiorum a re described as well as a new variety of C. urticicola: var. salicicol a. In addition the following species are fully described: C. argenteus , C. echinosporus, C. episcopalis, C. filamentifer, C. friesii, C. gon ophyllus, C. goudensis, C. herinkii, C. kimurae, C. kubickae, C. luteo cephalus, C. phaeosporus, C. phlyctidosporus, C, picaceus, C. piepenbr oekii, C, pseudofriesii, C. rugosobisporus, C. spilosporus, C. stangli anus, C. strossmayeri, C. tigrinellus, C. urticicola, C. vermiculifer, C. xantholepis, and C. xenobius.