Studies in Entoloma—10—13

Some nomenclatural corrections are given as a consequence of the 1983-edition of the International Code of Botanical Nomenclature. The new combinations Entoloma sect. Candida (Romagn.) Noordel. and E. subgen. Pouzarella (Mazz.) Noordel. are made. Two new species are described in sect. Griseorubida, viz. Entoloma griseorubidum and E. calaminare. The new combination E. indutoides (P. D. Orton) Noordel. is made. Section Cyanula is emended to include all species of subgen. Leptonia with blue, brown, yellow, pink, and green colours. Several new taxa are described, viz. Entoloma chalybaeum f. bisporigerum, E. lividocyanulum, E. huijsmanii, E. viaregale, E. pseudoturci, E. porphyrofibrillum, and E. scabropelle. The new combinations E. chalybaeum var. lazulinum (Fr.) Noordel., E. cyanulum (Lasch) Noordel., and E. cruentatum (Quél.) Noordel. are made. On account of some recent collections from Denmark and Scotland a new species in sect. Polita, viz. E. caeruleopolitum Noordel. & Brandt-Pedersen, is described.