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Nomenclature

Agaricus chioneus Fr.
Observ. mycol. 1: 66. 1815.

Russula chionea Fr.
Observ. mycol. 1: 66. 1815 (alt. name for Agaricus chioneus).

Russula fragilis var. chionea (Fr.) Gillet
Hyménomycètes: 245. 1876.

Original diagnosis

84. Agaricus chioneus, pileo niveo margine tuberculoso, lamellis stipiteque brevi concoloribus. (Russula chionea Fr.)

Ag. niveus. Pers. Syn. p. 438. Alb. Schw. l. c. p. 211. (Nomen plurimis commune.)

In umbrosis cum priori.

Ab antecedenti satis forte distincta; sed fragili, depallenti, exalbicanti P. maxime affinis. — Species enim enumeratæ ruborem suum sæpe plane omittunt; quod etiam testantur maculæ illæ rubellæ in hac specie sæpe obviæ.

Descr. Stipes uncialis glaber lævis æqualis candidus subfirmus, crass. digiti minoris, subcavus l. intus spongiosus non tamen eodem modo ac in præcedenti. (In illo enim substantia spongiosa medullam a stipitis liberam format, in hac vero confluunt.) Pileus planiusculus albus 2 unc. glaber lævis carnosus, margine striatus tuberculosus. Lamellæ subtenues distinctæ adnatæ albæ. Sapor (in nostro) amaricano.

Typification

Information not available

Description

Photographs

Microscopy

SEM photos