Search on : Taxa descriptions


Page number:259 
Remarks (internal):This is a member of subgen. Piperites, sect. Zonarii Quél., subsect. Zonarii in the system of Heilmann-Clausen et al (1998), because of the slimy and zonate pileus and broken ornamentation of basidiospores. It has no relation to sect. Russularia and is not closely related to L. quietus (Fr.: Fr.) Fr., as Wang and Xie (1984) suggested. Its cinnamomeus pileus, mild latex and the much longer macrocystidia might serve as characters separating it from other members in the same group.
The type was collected from mountain tundra. The dominant plants around the basidiocarps of this lactari were Rhododendron chrysantum, Phyllodoce caerulea, Vaccinium vitis-idaea and Dryas octopetala.
Description type:Non-original description 
Description:Lactarius changbainensis Y. Wang & Z.X. Xie, Acta Mycol. Sin. 3(2): 81, fig. 1-5 (1984) Figs. 10-12
Holotype: - China. Jilin Province: Antu County, Changbai Mountains, in tendra, alt. 2100 m, 13-VIII-1981, Y. Wang & Y.H. Yan 811239 (IFP)
Holotype consisting of many stout basidiocarps in good condition. Pileus 3-7 cm diam., zonate, especially in the centre, glabrous, with naked margin, thick-fleshed, ochraceous, brownish or brownish with faint purplish tinge. Lamellae 2-4 mm broad, crowded, shortly decurrent, ochraceous. Stipe 2.5-5 x 1-1.7 cm, cylindrical, equal, solid, somewhat pitted; base strigose, with ochraceous brown hairs. Spore deposit ochraceous on lamellar faces.
Basidiospores (Fig. 10) (7-) 7.5-9 (-10) x (6-) 6.5-7.5 (-8) µm [Q = (1.07-) 1.11-1.25 (-1.28), Q = 1.17 ± 0.04] (n=90), broadly ellipsoid; ornamentation up to 0.6 µm high, composed of short ridges and isolated warts, some of these connected or aligned but never forming reticulum; plage not amyloid. Pleuromacrocystidia (Fig. 11) common to numerous, 77-110 x 9-9.5 µm, lanceolate, subcylindrical, fusiform with tapering to slightly moniliform apex, with needle-like crystals, some golden yellowish. Pileipellis (Fig. 12) an ixocutis with some hyphae ends ascending; hyphae 2-4 µm diam.
Taxon name: