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Page number:265 
Remarks (internal):The paratypes cited by Wang and Xie (1984) (IFP 811398, 811235, 811554) are identical with the holotype.
The appearance of the dried basidiocarps rather resembles L. scrobiculatus (Scop.: Fr.) Fr. The unchanging latex in the original description, however, suggests its affinity to L. torminosus (Schaeff.: Fr.) Fr. and L. mairei Malençon, two taxa with pinkish buff pileus (Neuhoff 1956 , Heilmann-Clausen et al 1998). A poorly known species, L. aurantiaco-ochraceus Lar. N. Vassiljeva described from "USSR: Extremus Oriens, prope Chabarovsk...et prope Primorskaja", localities close and similar to Changbai Mountains, China, seems very close to L. wenquanensis, except for the smaller "reticulato-verrucosis" basidiospores and Betula costata as its host plant (Vassiljeva 1950). Though no type was designed to L. aurantiaco-ochraceus, it is still a valid name, because its publication meets the rules in the latest edition of ICBN. No collection of L. aurantiaco-ochraceus is available now, so whether the two taxa are synonyms is still unsolved.
Which group this species should be put into is still problematic. The scrobiculate stipe and unchanging latex argue for its position in Lactarius subgen. Piperites, sect. Zonarii, subsect. Zonarii, while the bearded pileus margin combined with the unchanging latex and the longer ridges on basidiospores show more similarity to sect. Piperites [in Heilmann-Clausen et al (1998)]. For more information of its systematic position, see TABLE I.
The species grew in a mixed Picea and Abies forest (alt. 1600 m) (Wang and Xie 1984).
 
Description type:Non-original description 
Description:Lactarius wenquanensis Y. Wang & Z.X. Xie, Acta Mycol. Sin. 3(2): 83, fig. 2/1-5 (1984) Figs. 33-36
Holotype: - China. Jilin Province: Antu County, Changbai Mountains, under Picea, Abies forest, alt. 1600 m, 7-VII-1981, Y. Wang & Y.H. Yan 811077 (IFP)
Holotype in good condition, consisting of two stout basidiocarps. Pileus 3-5.5 cm diam., shiny, margin with paler rigid agglutinate hairs, ochraceous yellow, zonate. Context thick. Lamellae 1-2 mm broad, crowded, shortly decurrent, ochraceous brown. Stipe 3-4 x 1.2-1.6 cm, cylindrical, equal, stout, solid, pitted, surface a little powdery, pale ochraceous or ochraceous brown.
Basidiospores (Fig. 33) 7.5-9.5 x (6-) 6.5-7.5 µm [Q = (1.14-) 1.18 - 1.31 (-1.36), Q = 1.24 ± 0.05] (n = 40), ellipsoid; ornamentation up 1 µm high, mostly 0.5-0.8 µm high, composed of isolated ridges and warts, some of these connected by fine lines, partly arranged in a more or less zebroid pattern, closed meshed not formed; plage not or weakly distally amyloid. Basidia 50-60 x 10-13 µm, clavate, 4-spored. Pleuromacrocystidia (Fig. 34) common, (50-) 70-90 x 9-12 µm, subfusiform, some with moniliform apex. Lamellar margin sterile; cheilomacrocystidia smaller than pleuromacrocystidia, scarce, with dense yellowish contents. Lamellar trama filamentous. Pileus trama with rosettes. Pileipellis (Fig. 36) an ixocutis, 300-400 µm thick; hyphae 3-6 µm thick, some hyphae shriveled. Stipitipellis (Fig. 35) a cutis, 80-100 µm thick; hyphae 5-6 µm thick; cortex with rosettes.
 
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