Fig. 2From: Diversity of Chroogomphus (Gomphidiaceae, Boletales) in Europe, and typification of C. rutilusThe two different types of pileipellis found in European species of Chroogomphus. A. Subgenera Siccigomphus and Floccigomphus are characterized by species with broad pileipellis hyphae that lack a gelatinous layer; non-gelatinised pileipellis hyphae of C. cf. helveticus (H7019100). B. Species of subgen. Chroogomphus have narrower pileipellis hyphae embedded in a gelatinous layer; these gelatinised pileipellis hyphae are found in all other European species, in this example, C. britannicus (K(M)77895, holotype). Bar = 50 µm. Photographs: Ross Scambler.Back to article page