Name: Lactarius salicis-reticulatae
Lactarius salicis-reticulatae is recog-nized by its small to medium, cream, pale yellow orpale ocher sporocarps with pale yellowish, well-spacedlamellae often with a pinkish buff tint, cream to pale yel-low stipe, violet staining latex and tissue, mild to slightlysweet odor, mild flavor and association with dwarf (S.reticulata) and possibly also shrubby Salix species.Pileus 20–40 mm diam, convex to broadly convex,usually with a depressed center, smooth, dry to viscid,azonate, cream, pale yellow or pale ocher, sometimesdarker toward center, staining violet where damaged;margin invcurved, remaining so or becoming down-turned when mature. Lamellae adnate to subdecur-rent, fairly well-spaced, cream, pale yellow, or paleorange-ocher often with a pinkish-buff tint, stainingviolet where damaged. Stipe 15–20 610–15 mm,equal to clavate, central, dry to viscid, cream to pale-yellow, staining violet where damaged, hollow. Latexscarce, watery-white, becoming violet. Context ofpileus and stipe white, staining violet where damaged.Odor mild to slightly sweet. Flavor mild. Basidiosporedeposit not observed. Basidiospores (7–)8.5–11.5 6(7–)8–10 mm, av. 510.0 68.8 mm, Q 5(1.00–)1.13–1.43, Q¯51.25, hyaline in 2.5% KOH, sublgobose toellipsoid; ornamentation amyloid, of narrow ridgesand a few isolated warts forming an incomplete reticu-lum, to 0.3 mm high. Basidia 73.7–88.9 610.2–12.7 mm, four-spored. Pleuromacrocystidia 76.2–101.667.6–11.4 mm, subfusiform to fusiform, thin-walled,with rounded to acute to moniliform apex, scarce.Cheilomacrocystidia 68.6–91.4 67.6–10.2 mm, subfusi-form to fusiform, thin-walled, with acute to rounded tomoniliform apex, scattered to abundant. Pileipellis anixocutis.Distribution and habitat: Lactarius salicis-reticulatae firstwas described from alpine tundra with Salix on Mt.Låktatjåkka, Sweden (Kühner 1975). Phylogenetic ana-lyses including material from the type locality confirmthis species from alpine areas on the Beartooth Plateauwith Salix reticulata and shrubby Salix spp. and in arctic-alpine areas of Alaska, Svalbard and Finland. OverallL. salicis-reticulatae appears largely confined to arctic-alpine habitats. Colorado collections with S. reticulataand S. planifolia may represent a distinct taxon,although support is low.
Created: 2016-04-08 01:21:24 -03 (-0300) by Danny Newman (myxomop)
Last modified: 2018-12-28 04:25:55 -02 (-0200) by Image Sharer (image sharer)
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