Xerophorus (Bon) Vizzini, Consiglio & M. Marchetti, stat. nov.

Index Fungorum number: MB 831417; Facesoffungi number: FoF

Callistosporium subg. Xerophorus Bon, Documents Mycologiques 20 (79): 57 (1990)

Callistosporium sect. Xerophorus (Bon) Contu, Boletim da Sociedade Broteriana 65: 80 (1992)

= Sect. Olivascentia Bon & Perco, in Perco, Bollettino AMER 15: 9 (1988)

Type species: Xerophorus olivascens (see below)

Description: Habit collybioid, gymnocarpic development (without veils). Pileus dry, smooth to furfuraceous. Lamel- lae adnate, emarginated to subdecurrent, distant and thick. Spore-print white. Spores smooth, amygdaliform, papillate, usually longer than 8 μm, thin-walled, without iodine reac- tions, non-amyloid, cyanophilous, with a large central oil drop that turns green in basic solutions. Hymenophoral trama at first slightly bilateral (divergent), soon regular. Basidia hygrophoroid, up to 50(–60) × 6–8(–11) μm, filled with gran- ules that turn green in basic solutions. Cheilocystidia poorly differentiated or absent. Pleurocystidia absent. Pileipellis a cutis to subtrichoderm of cylindrical hyphae; pileipellis, sub- pellis and hypoderm elements usually with parietal-incrust- ing and extracellular pigments that turn green-light blue in basic solutions. Clamp connections present or absent.

Ecology: on soil. Presumably saprotrophic. Europe and Greater Antilles (Dominican Republic).