Spores globose, yellowish, 9–11.3µ Peck; pale ochraceous, subglobose, minutely echinulate, 9–10µ diameter Massee.
West Virginia mountains, 1881–1885; Eagle’s Mere; Mt. Gretna, Pa. Solitary and gregarious, moist woods and wooded places. July to September. McIlvaine.
In my long experience with the plant I have not seen any change of color, save that, like the white milk of other species, it darkens slightly to a cream color. I have found it distinctly umbilicate and quite umbonate in the same patch.
L. lignyotus is one of the best of Lactarii and quite equal to L. volemus.
L. corru´gis Pk.—having wrinkles or folds. Pileus 3–5 in. broad, firm, convex, then nearly plane or centrally depressed, rugose reticulated, covered with a velvety pruinosity or pubescence, dark reddish-brown or chestnut-color, fading with age to tawny-brown. Gills close, dark cream-color or subcinnamon, becoming paler when old, sordid or brownish where bruised or wounded. Stem 3–5 in. long, 6–12 lines thick, equal, solid, glabrous or merely pruinose, paler than but similar in color to the pileus. Spores subglobose, 10–13µ. Milk copious, white, taste mild.
Thin woods. Sandlake, Gansevoort and Brewerton, N.Y. August and September.
This curious Lactarius is related to L. volemus, from which it may be separated by its darker colors and its corrugated pileus. The flexuous reticulated rugæ present an appearance similar to that of the hymenium of a Merulius. The pileus is everywhere pruinose-pubescent and the gills bear numerous spine-like or acicular cystidia or spicules, 4–5µ long. These are so numerous on and near the edges of the gills that they give them a pubescent appearance. Peck, 38th Rep. N.Y. State Bot.
I found many at Mt. Gretna, Pa., up to 6½ in. in diameter. Flesh not so firm as L. volemus. Stem equal, rugulose, flattened in old specimens. Milk very slightly acrid.
Better in taste and quality than L. volemus.
L. lute´olus Pk.—yellowish. Pileus 2–3 in. broad, fleshy, rather thin, convex or nearly plane, commonly umbilicately depressed in the center and somewhat rugulose, pruinose or subglabrous, buff-color. Flesh white, taste mild. Milk copious, flowing easily, white or whitish. Gills close, nearly plane, adnate or slightly rounded behind, whitish, becoming brownish where wounded. Stem 1–1.5 in. long, 3–5 lines thick, short, equal or tapering downward, solid, but somewhat spongy within, colored like the pileus. Spores globose, 7.6µ broad.