Chlorosplenium

Abstract: The writer is proposing the above new name to replace Chlorosplenium as ordinarily used and for the following reasons: Fries proposed the name Chlorosplenium based on Chlorosplenium Schweinitzii {Peziza chlora Schw.), a very small sessile cupfungus of a lemon-yellow color externally and with an olive-green hymenium. The species is very common on hard wood through? out North America. Later DeNotaris, although he had never seen the type species, took up the name Chlorosplenium of Fries and added Chlorosplenium aeruginosum and Chlorosplenium versiforme. The former species has come to be looked upon as the typical Chlorosplenium although Fries did not regard it as congeneric with Chlorosplenium Schweinitzii when the genus was established but left it in the genus Helotium. Clements and Shear designate Chlorosplenium aeruginosum the type of the genus, giv? ing Fries credit for the combination although, so far as we know, Fries never treated this species as a Chlorosplenium. Nannfeldt recognized the fact that Chlorosplenium Schweinitzii and Chlorosplenium aeruginosum are not congeneric and suggests that the latter be kept in the genus Ciboria. Believing, however, that these forms are sufficiently distinct, the writer proposes that they be treated under the new name indicated below. The following is the writer's conception of the genus Chlorociboria and some of the forms which should be included therein.