taxonID	type	description	language	source
4E2B8211D637FF9BFCE0FE5AFBAFF989.taxon	description	(Figs 2, 3) SYSTEMATIC POSITION. — Basidiomycota, Agaricomycetes, Russulales, Russulaceae, Russula subg. Heterophyllidia subsect. Heterophyllae.	en	Yuan, Fa, Song, Yu, Buyck, Bart, Li, Jingwei, Qiu, Lihong (2019): Russula viridicinnamomea F. Yuan & Y. Song, sp. nov. and R. pseudocatillus F. Yuan & Y. Song, sp. nov., two new species from southern China. Cryptogamie, Mycologie 20 (4): 45-56, DOI: 10.5252/cryptogamie-mycologie2019v40a4, URL: http://dx.doi.org/10.5252/cryptogamie-mycologie2019v40a4
4E2B8211D637FF9BFCE0FE5AFBAFF989.taxon	materials_examined	HOLOTYPE. — China. Guangdong Province, Zhaoqing City, Dinghu Mountain, on the ground in broad-leaf forest, 14. IX. 2015, J. B. Zhang K 15091418 (holo-, GDGM [GDGM 75339]).	en	Yuan, Fa, Song, Yu, Buyck, Bart, Li, Jingwei, Qiu, Lihong (2019): Russula viridicinnamomea F. Yuan & Y. Song, sp. nov. and R. pseudocatillus F. Yuan & Y. Song, sp. nov., two new species from southern China. Cryptogamie, Mycologie 20 (4): 45-56, DOI: 10.5252/cryptogamie-mycologie2019v40a4, URL: http://dx.doi.org/10.5252/cryptogamie-mycologie2019v40a4
4E2B8211D637FF9BFCE0FE5AFBAFF989.taxon	etymology	ETYMOLOGY. — Referring to the green tinged buff pileus.	en	Yuan, Fa, Song, Yu, Buyck, Bart, Li, Jingwei, Qiu, Lihong (2019): Russula viridicinnamomea F. Yuan & Y. Song, sp. nov. and R. pseudocatillus F. Yuan & Y. Song, sp. nov., two new species from southern China. Cryptogamie, Mycologie 20 (4): 45-56, DOI: 10.5252/cryptogamie-mycologie2019v40a4, URL: http://dx.doi.org/10.5252/cryptogamie-mycologie2019v40a4
4E2B8211D637FF9BFCE0FE5AFBAFF989.taxon	diagnosis	DIAGNOSIS. — R. viridicinnamomea F. Yuan & Y. Song, sp. nov. is mainly characterized by sequence data for the internal transcribed spacers (ITS), its green tinged cinnamon pileus with undulate and easily peeling margin, absence of lamellulae, basidiospores with partially reticulate ornamentations, gloeocystidia changing to grey in SV and thick pileipellis often with inflated subterminal cells. HABITAT AND DISTRIBUTION. — Gregarious in evergreen broadleaf forest.	en	Yuan, Fa, Song, Yu, Buyck, Bart, Li, Jingwei, Qiu, Lihong (2019): Russula viridicinnamomea F. Yuan & Y. Song, sp. nov. and R. pseudocatillus F. Yuan & Y. Song, sp. nov., two new species from southern China. Cryptogamie, Mycologie 20 (4): 45-56, DOI: 10.5252/cryptogamie-mycologie2019v40a4, URL: http://dx.doi.org/10.5252/cryptogamie-mycologie2019v40a4
4E2B8211D637FF9BFCE0FE5AFBAFF989.taxon	description	ADDITIONAL SPECIMENS EXAMINED. — China. Guangdong Province, Zhaoqing City, Dinghu Mountain, on the ground in broad-leaf forest, 14. IX. 2015, J. B. Zhang K 15091418 - 1, (GDGM [GDGM 75340]). DESCRIPTION Basidiomata Small to medium sized, agaricoid. Pileus 3 - 5 cm in diam., hemispherical when young, becoming applanate when mature, with entire margin; surface easy to peel to mid-radius, glabrous, dry, not viscid, pale green (# 98 FB 98), with center a very pale greenish-grayish yellow (palegoldenrod, # EEE 8 AA). Lamellae Adnate, equal, rarely forked, off-white (white smoke, # F 5 F 5 F 5), unchanging when bruised; edge even, concolorous; lamellulae present, but rare. Stipe 3 - 4.5 × 0.7 - 1 cm, central, cylindrical, solid; surface dry, off-white (white smoke, # F 5 F 5 F 5), longitudinally rugulose. Context Off-white (ghost white, # F 8 F 8 FF), 1 - 3 mm thick, unchanging when bruised. Odour Indistinct. Taste Mild. Spore print Whitish. Basidiospores Subglobose to ellipsoid, [80 / 4 / 2] (5.1 -) 5.3 - 6.1 - 7.0 (- 8.1) × (3.6 -) 4.2 - 4.7 - 5.5 (- 5.8) µm, Q = (1.05 -) 1.12 - 1.30 - 1.47 (- 1.68), hyaline in 5 % KOH; ornamentations amyloid, composed of verrucose to conical warts up to 0.6 µm, linked by fine lines forming incomplete network, intermixed with isolated warts; suprahilar spot not amyloid. Basidia 31 - 45.5 × 8.5 - 11.5 µm, clavate to subcylindrical, 4 - spored, rarely 2 - or 3 - spored, some containing oil droplets when young; sterigmata up to 7 µm long. Lamellar trama Composed of nested sphaerocytes surrounded by connective hyphae. Pleurocystidia 31.5 - 66 × 4.5 - 13.5 µm, abundant, fusoid to cylindrical, with rostrate or mucronate apices, thin-walled, with abundant granular contents, becoming dark grey in sulphovanillin (SV). Cheilocystidia 36.5 - 63 × 4 - 12 µm, cylindrical, with capitate apex, thinwalled, some with refractive granular contents, becoming dark grey in SV. Marginal cells Not differentiated. Pileipellis Orthochromatic in cresyl blue, divided into an upper trichodermal suprapellis and an underlying subpellis of slender, repent to ascending hyphae. Subpellis 350 - 450 µm deep, composed of septate, thin-walled, hyaline hyphae. Suprapellis 50 - 80 µm thick, composed of ascending to erect, densely septate hyphal extremities, often with progressively inflating subterminal cells; terminal cells subcylindrical or more frequently distinctly narrowing upward, with obtuse apices; chains of subterminal cells mostly progressively inflated, with more basal cells mostly ellipsoid to subglobose. Pileocystidia Abundant, mostly 20.5 - 84 × 3 - 6 µm, one-celled, terminal on extremities, narrowly clavate to cylindrical in suprapellis, apex rostrate or obtuse, with granular refractive contents, becoming longer and cylindrical in subpellis, without septa and with distinct refractive contents changing to dark grey in SV. Stipitipellis A cutis, orthochromatic in cresyl blue, composed of repent, thin-walled, septate hyphae up to 4.6 µm broad; terminal cells cylindrical. Caulocystidia Frequent, cylindrical, mostly 18.5 - 54 × 3 - 13 µm, with obtuse apices, without septa, with refractive contents, turning dark grey in SV. Stipe trama Composed of connective hyphae and nested sphaerocytes. Clamp connections Absent. Notes The combination of predominantly equal gills, pale spore print, absence of an amyloid suprahilar spot, no primordial hyphae, but presence of single-celled gloeocystidia and welldifferentiated hyphal extremities are all characters that suggest that R. viridicinnamomea F. Yuan & Y. Song, sp. nov. belongs in subg. Heterophyllidia. Our phylogenetic analysis based on ITS sequences placed it firmly within sect. Heterophyllae, subsect. Heterophyllae, where it is closely related to R. bubalina and R. pseudobubalina (Li et al. 2018). The latter subsection was traditionally based on the European R. vesca and R. heterophylla, two species that produce a strong carrot orange reaction to FeSO 4 (which has not yet been verified for our species) and are both unique among European Russulas in possessing thick-walled, needle-shaped cells at the surface of the pileipellis, particularly near the pileus center. Both of these characters have not yet been reported for any of the Chinese species that were recently attributed to this group, except for the confirmed strong reaction to FeSO 4 in R. pseudobubalina and R. subatropurpurea (Li et al. 2018). Whereas the three Chinese species that were recently attributed to this subsection are all similar to R. vesca in general color, viz. mostly in shades of pink to pinkish brown with local discolored spots that are yellowish rusty in color, R. viridicinnamomea F. Yuan & Y. Song, sp. nov. is more reminiscent of R. heterophylla because of the green shades on the pileus.	en	Yuan, Fa, Song, Yu, Buyck, Bart, Li, Jingwei, Qiu, Lihong (2019): Russula viridicinnamomea F. Yuan & Y. Song, sp. nov. and R. pseudocatillus F. Yuan & Y. Song, sp. nov., two new species from southern China. Cryptogamie, Mycologie 20 (4): 45-56, DOI: 10.5252/cryptogamie-mycologie2019v40a4, URL: http://dx.doi.org/10.5252/cryptogamie-mycologie2019v40a4
4E2B8211D634FF97FCFBF9FEFAF8F8A9.taxon	description	(Figs 4, 5) SYSTEMATIC POSITION. — Basidiomycota, Agaricomycetes, Russulales, Russulaceae, Russula subg. Heterophyllidia sect. Ingratae.	en	Yuan, Fa, Song, Yu, Buyck, Bart, Li, Jingwei, Qiu, Lihong (2019): Russula viridicinnamomea F. Yuan & Y. Song, sp. nov. and R. pseudocatillus F. Yuan & Y. Song, sp. nov., two new species from southern China. Cryptogamie, Mycologie 20 (4): 45-56, DOI: 10.5252/cryptogamie-mycologie2019v40a4, URL: http://dx.doi.org/10.5252/cryptogamie-mycologie2019v40a4
4E2B8211D634FF97FCFBF9FEFAF8F8A9.taxon	materials_examined	HOLOTYPE. — China. Guangdong Province, Zhaoqing City, Dinghu Mountain, 14. IX. 2016, J. W. Li K 16042406, (holo-, GDGM [GDGM 75338]).	en	Yuan, Fa, Song, Yu, Buyck, Bart, Li, Jingwei, Qiu, Lihong (2019): Russula viridicinnamomea F. Yuan & Y. Song, sp. nov. and R. pseudocatillus F. Yuan & Y. Song, sp. nov., two new species from southern China. Cryptogamie, Mycologie 20 (4): 45-56, DOI: 10.5252/cryptogamie-mycologie2019v40a4, URL: http://dx.doi.org/10.5252/cryptogamie-mycologie2019v40a4
4E2B8211D634FF97FCFBF9FEFAF8F8A9.taxon	etymology	ETYMOLOGY. — Named for its resemblance to R. catillus in pileus morphology.	en	Yuan, Fa, Song, Yu, Buyck, Bart, Li, Jingwei, Qiu, Lihong (2019): Russula viridicinnamomea F. Yuan & Y. Song, sp. nov. and R. pseudocatillus F. Yuan & Y. Song, sp. nov., two new species from southern China. Cryptogamie, Mycologie 20 (4): 45-56, DOI: 10.5252/cryptogamie-mycologie2019v40a4, URL: http://dx.doi.org/10.5252/cryptogamie-mycologie2019v40a4
4E2B8211D634FF97FCFBF9FEFAF8F8A9.taxon	diagnosis	DIAGNOSIS. — R. pseudocatillus F. Yuan & Y. Song, sp. nov. resembles R. catillus in overall pileus morphology, but it differs from the latter by its smaller basidiomata, presence of lamellula, much bigger basidiospores ornamented with higher warts never forming a reticulum, presence of dermatocystidia (pileocystidia and caulocystidia), smaller pleurocystidia and not gelatinized pileipellis. HABITAT AND DISTRIBUTION. — Gregarious in evergreen broadleaf forest.	en	Yuan, Fa, Song, Yu, Buyck, Bart, Li, Jingwei, Qiu, Lihong (2019): Russula viridicinnamomea F. Yuan & Y. Song, sp. nov. and R. pseudocatillus F. Yuan & Y. Song, sp. nov., two new species from southern China. Cryptogamie, Mycologie 20 (4): 45-56, DOI: 10.5252/cryptogamie-mycologie2019v40a4, URL: http://dx.doi.org/10.5252/cryptogamie-mycologie2019v40a4
4E2B8211D634FF97FCFBF9FEFAF8F8A9.taxon	description	ADDITIONAL SPECIMENS EXAMINED. — China. Guangdong Province, Zhaoqing City, Dinghu Mountain, 7. VI. 2015, J. B. Zhang K 15060706. DESCRIPTION Basidiomata Small, agaricoid. Pileus 2.5 - 4 cm in diam., plano-concave or applanate with a depressed center, some slightly decurrent, surface glabrous, slightly viscid when wet, very pale yellow (corn silk, # FFF 8 DC) at margin, with a pale greyish brown (tan, # D 2 B 48 C) center; margin slightly undulate, striate, rarely cracked. Lamellae Adnate, subequal, interveined, often forked near stipe, about 2 mm in height, very pale grayish yellow (beige, # F 5 F 5 DC), unchanging when bruised; edge entire, concolorous; lamellulae rather frequent, but not polydymous. Stipe 2.5 - 4 × 0.6 - 1 cm, central, cylindrical, sometimes slightly tapering upwards, surface dry, slightly longitudinally rugulose, a pale greenish-grayish yellow (goldenrod, # EEE 8 AA) in the upper part, burlywood at the bottom, stuffed at first, becoming hollow when old. Context Off-white (ivory, # FFFFF 0), unchanging when bruised. Odour Indistinct. Taste Mild. Spore print Very pale. Basidiospores Broadly ellipsoid to subglobose, [40 / 2 / 2] 7.0 - 7.9 - 8.6 (- 9.2) × (5.1 - (5.5 - 6.1 - 6.6 (- 6.7) µm, Q = (1.19 -) 1.22 - 1.32 - 1.42, hyaline in 5 % KOH; ornamentations amyloid, composed of conical to cylindrical warts up to 1.2 µm, isolated, never forming a reticulum; suprahilar spot unamyloid. Basidia 33 - 41.5 × 10.5 - 13 µm, 4 - spored, rarely 2 - spored, some containing oil droplets; sterigmata up to 8 µm long. Lamellar trama Composed of nested sphaerocytes surrounded by connective hyphae. Pleurocystidia 32 - 37.5 × 9.5 - 11.5 µm, clavate to subcylindrical, rarely fusiform, with obtuse to truncate apices, thin-walled, with abundant refractive granular contents, negative in SV. Cheilocystidia 33 - 47.5 × 9 - 12.5 µm, clavate, with mucronate to rostrate apex, thin-walled, some with refractive granular contents, unchanging in SV. Marginal cells not differentiated. Pileipellis Orthochromatic in cresyl blue, divided into two layers: suprapellis trichoderm, composed of ascending to erect hyphae; subpellis a cutis, composed of septate, thin-walled, hyaline hyphae; terminal cells clavate to cylindrical, with obtuse apices; subterminal cells cylindrical or slightly inflated. Pileocystidia Abundant, unchanging in SV, mostly 13 - 33 × 3 - 6 µm, onecelled, cylindrical, apex obtuse, with granular contents, also present in subpellis. Stipitipellis A cutis, orthochromatic in cresyl blue, composed of repent, thin-walled, septate hyphae up to 4.6 µm broad. Caulocystidia Frequent, clavate to cylindrical, 16 - 35 × 3 - 8 µm, with obtuse or rostrate apex, one-celled, with refractive contents, unchanging in SV. Stipe trama Composed of connective hyphae and nested sphaerocytes. Clamp connections Absent. Notes Russula catillus was reported from Korea, and the name refers to the resemblance of the pileus to a small bowl traditionally used for holding soy sauce. R. pseudocatillus F. Yuan & Y. Song, sp. nov., is sharing similar overall color and shape with R. catillus. Dermatocystidia (both pileocystidia and caulocystidia) are present in our species, but were reported (in Lee et al. 2017) as absent in R. catillus, something that is highly unexpected and should be verified again as all of the presently known species in sect. Ingratae from any part of the world all have abundant dermatocystidia and abundant gloeoplerous elements in all of the tissues. Russula pseudocatillus F. Yuan & Y. Song, sp. nov. is very similar to this R. catillus, but it differs from the latter in its smaller basidiomata, irregular presence of lamellulae, much bigger basidiospores ornamented with higher warts that are never interconnected into a reticulum, and also because of its smaller pleurocystidia and poorly gelatinized pileipellis (see Tables 1, 2).	en	Yuan, Fa, Song, Yu, Buyck, Bart, Li, Jingwei, Qiu, Lihong (2019): Russula viridicinnamomea F. Yuan & Y. Song, sp. nov. and R. pseudocatillus F. Yuan & Y. Song, sp. nov., two new species from southern China. Cryptogamie, Mycologie 20 (4): 45-56, DOI: 10.5252/cryptogamie-mycologie2019v40a4, URL: http://dx.doi.org/10.5252/cryptogamie-mycologie2019v40a4
