Russulales News / Lactarius subplinthogalus

Nomenclature

Lactarius subplinthogalus Coker (basionym)
J. Elisha Mitchell Sci. Soc. 34: 50. 1918.

Taxonomic synonyms:

= Lactarius marylandicus A.H. Sm. & Hesler, Brittonia 14: 427. 1962.

= Lactarius pseudofuliginosus A.H. Sm. & Hesler, Brittonia 14: 428. 1962.

Original diagnosis

Cap up to 10.5 cm. broad, usually 3-5 cm., moderately depressed in center, the margin rounded and somewhat irregular, or at times beautifully and regularly crimped; surface smooth, dull, minutely pruinose when young, scarcely so at maturity, marginal third with rather strong, radial, irregular pleats which extend in from the margin crimps; color snuff brown, buffy-drab (avellaneous, Ridgway) to pale ochraceous-buff or occasionally even lighter (light buff, Ridgway). Flesh about 6 mm. thick near stem, tough, soft, whitish, turning rosy-salmon when cut, odor pleasant. Milk white, acrid, turning a deep rosy-salmon in contact with flesh and gills. Gills very distant, somewhat decurrent, but ending abruptly and somewhat rounded at stem, none branching, not veined at cap, full length ones about 1-1.4 mm. apart at margin and 1-1.4 mm. deep. Between these are shorter ones of three lengths and three distinct widths, all bluntly rounded at the inner end. Color cinnamon-buff, turning rosy-salmon covernous in age. Spores (of No. 1835) cinnamon, spherical, covered with strong, blunt spines of varying lengths on the same spore, some 1.5 µ. long, other shorter, diameter with spines 10-12 µ., most about 11 µ. [...] 2349. By Meeting of the Waters Branch, near Scott's Hole, July 3, 1916. Photo. Type.

Typification

Holotypus: Coker 2349 (NCU)
North America: United States: North Carolina, Meeting of the Waters Branch, near Scotts hole

Published type studies: Hesler & Smith (1979), N. Amer. Spec. Lactarius: 139

Nomenclatural notes

The neotype has been reidentified by Hesler & Smith (1979) as "L. ruginosus"

Description

Photographs

Microscopy

SEM photos