taxonID	type	description	language	source
03BF8790DC538159BD16433CB931FDD2.taxon	description	MycoBank: MB 837425 Index Fungorum: IF 558819 Figs 3 – 4, 7 A	en	Song, Yu, Xie, Xiu-Chao, Buyck, Bart (2021): Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy 775: 15-33, DOI: 10.5852/ejt.2021.775.1543
03BF8790DC538159BD16433CB931FDD2.taxon	diagnosis	Diagnosis Russula coronaspora sp. nov. is mainly characterized by its small basidiocarps with pinkish brown pileus, interveined lamellae with few lamellulae, small spores ornamented with sparse, cylindrical and isolated spines, hymenial and dermatocystidia weakly SV + or SV-, pileipellis gelatinized and orthochromatic in cresyl blue, pileocystidia mostly septate and sometimes branched.	en	Song, Yu, Xie, Xiu-Chao, Buyck, Bart (2021): Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy 775: 15-33, DOI: 10.5852/ejt.2021.775.1543
03BF8790DC538159BD16433CB931FDD2.taxon	etymology	Etymology Named after its basidiospores which resemble a coronavirus.	en	Song, Yu, Xie, Xiu-Chao, Buyck, Bart (2021): Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy 775: 15-33, DOI: 10.5852/ejt.2021.775.1543
03BF8790DC538159BD16433CB931FDD2.taxon	materials_examined	Type material Holotype CHINA • Guangdong Province, Zhaoqing City, Dinghushan Biosphere Reserve, on the ground in evergreen broad-leaf forest; 22 Apr. 2019; Y. Song, K 19042201; GenBank nos: MN 275689 (ITS), MN 839580 (nLSU), MN 839630 (mtSSU), MT 085562 (rpb 1), MT 085657 (rpb 2), MT 085600 (tef 1); GDGM 79711. Additional material examined CHINA • Guangdong Province, Zhaoqing City, Dinghushan Biosphere Reserve, on the ground in evergreen broad-leaf forest; 6 Apr. 2016; Y. Song, K 16040650; GenBank no: MN 275690 (ITS); GDGM 79712.	en	Song, Yu, Xie, Xiu-Chao, Buyck, Bart (2021): Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy 775: 15-33, DOI: 10.5852/ejt.2021.775.1543
03BF8790DC538159BD16433CB931FDD2.taxon	description	Description Basidiocarp small sized. Pileus 2.5 – 4 cm in diam., hemispherical to convex at first, turning applanate with depressed center at maturity; surface glabrous, dry, viscid when wet, pinkish (# FDF 2 E 9) or brownish (# FCF 3 CF), sometime white (# FFFFF 0) at margin; margin entire, sometimes cracked, striate when young. Lamellae white (# FFFFF 0), interveined, mixed with few, dispersed shorter lamellulae; edge entire, concolorous, smooth. Stipe central, 2 – 3.5 × 0.5 – 1 cm, cylindrical, sometimes tapering upwards, solid at first, turning spongy to hollow with age, fleshy, fragile, white (# FBFCFC). Context white, not changing when bruised; taste mild; odor indistinct. Spore print pale cream (# FBFBEF). Basidiospores subglobose to ellipsoid, rarely globose, very small, (60 / 3 / 2) (4.5 –) 4.7 – 5.1 – 5.6 (– 6.2) × (3.6 –) 3.8 – 4.2 – 4.6 (– 4.8) μm, [Q = 1.12 – 1.20 – 1.32 (– 1.38)], hyaline in 5 % KOH; ornamentation amyloid, spines cylindrical to subclavate, sometimes tapering upwards or downwards, less than 2 μm in height, sparsely distributed [2 – (4 –) 5 in a 3 μm diam. circle], isolated, long warts scattered, never connected; suprahilar spot indistinct, amyloid. Basidia clavate, 2 - or 4 - spored, thin-walled, often with irregular contents or droplets, (19.5 –) 21.5 – 25 – 30 (– 35) × 7 – 9 – 10.5 (– 11) μm; sterigmata 2.4 – 5.1 × 1.2 – 1.5 μm. Hymenial gloeocystidia on gill sides subcylindrical to fusiform, with papillate, mucronate or branched apices, thin-walled, with irregular refractive contents, weakly SV + or SV-, (21 –) 23.5 – 33 – 49 (– 51) × 4.5 – 5.5 – 7.5 μm; on gill edges not abundant, 33 – 40 – 46 (– 50) × 4.5 – 5 – 6 μm. Subhymenium pseudoparenchymatous. Lamellar trama composed of numerous sphaerocytes surrounded by connective hyphae, sphaerocytes up to 21 × 19 μm. Pileipellis orthochromatic in cresyl blue, gelatinized, composed of ascending to erect hyphae, 33 – 80 μm thick; terminal cells cylindrical, with obtuse or tapering apices, thin-walled, hyaline, (7.5 –) 8.5 – 14 – 19 (– 24) × 1.5 – 2 – 3 μm. Pileocystidia abundant, cylindrical to fusiform, with obtuse or tapering apices, mostly 1 - or 2 - septa, sometimes branched, with refractive contents, weakly SV + or SV-, (29 –) 30.5 – 62 – 94.5 (– 98.5) × 3 – 4.5 – 6 (8.5) μm. Stipitipellis a cutis, composed of septate and hyaline hyphae measuring 1 – 3 μm wide; terminal cells cylindrical with obtuse apices, thin-walled, hyaline. Caulocystidia frequent, cylindrical, obtuse or papillate, mostly septate, with refractive contents, (30.5 –) 33 – 39.5 – 49 (– 57.5) × 2 – 3 – 4 μm. Clamp connections absent in all tissues.	en	Song, Yu, Xie, Xiu-Chao, Buyck, Bart (2021): Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy 775: 15-33, DOI: 10.5852/ejt.2021.775.1543
03BF8790DC5B815DBD4C4779B9BEFE33.taxon	description	MycoBank: MB 837427 Index Fungorum: IF 558489 Figs 5 – 6, 7 B	en	Song, Yu, Xie, Xiu-Chao, Buyck, Bart (2021): Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy 775: 15-33, DOI: 10.5852/ejt.2021.775.1543
03BF8790DC5B815DBD4C4779B9BEFE33.taxon	diagnosis	Diagnosis Russula minor sp. nov. is mainly characterized by its very small basidiocarp with thin context and pink to rosy pileus less than 2.5 cm in diam., pileipellis very easy to peel off, white to cream lamellae with few lamellulae, often curved and hollow to multi-chambered stipe, spores with conical to cylindrical warts never connected, very small basidia and gelatinized pileipellis with slender terminal cells and abundant pileocystidia, and pleurocystidia weakly SV + (slightly becoming brownish) or SV-, while pileocystidia becoming brown in SV.	en	Song, Yu, Xie, Xiu-Chao, Buyck, Bart (2021): Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy 775: 15-33, DOI: 10.5852/ejt.2021.775.1543
03BF8790DC5B815DBD4C4779B9BEFE33.taxon	etymology	Etymology Referring to its very small basidiocarp.	en	Song, Yu, Xie, Xiu-Chao, Buyck, Bart (2021): Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy 775: 15-33, DOI: 10.5852/ejt.2021.775.1543
03BF8790DC5B815DBD4C4779B9BEFE33.taxon	materials_examined	Type material Holotype CHINA • Guangdong Province, Zhaoqing City, Dinghushan Biosphere Reserve, on the ground in evergreen broad-leaf forest mainly with plants in Fagaceae; 12 Sep. 2016; Y. Song, K 18043001; GenBank nos.: MN 275666 (ITS), MK 881964 (nLSU), MK 882091 (mtSSU), MT 085496 (rpb 1), MK 880691 (rpb 2), MT 085599 (tef 1); GDGM 79686. Additional material examined CHINA • Guangdong Province, Zhaoqing City, Dinghushan Biosphere Reserve, on the ground in evergreen broad-leaf forest; 8 Sep. 2018; F. Yuan and Y. Song, K 18090802; GenBank no: MN 275665 (ITS); GDGM 79687 • same data as for preceding; F. Yuan and Y. Song, K 18090827; GenBank no: MN 275667; GDGM 79688 • same data as for preceding; 10 Sep. 2018; F. Yuan and Y. Song, K 18091022; GenBank no: MN 275668; GDGM 79689.	en	Song, Yu, Xie, Xiu-Chao, Buyck, Bart (2021): Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy 775: 15-33, DOI: 10.5852/ejt.2021.775.1543
03BF8790DC5B815DBD4C4779B9BEFE33.taxon	description	Description Basidiocarp very small (pileus diameter less than 3 cm). Pileus 0.8 – 2.5 cm in diam., hemispherical to convex when young, turning applanate with depressed center or infundibuliform at maturity; surface dry, viscid when wet, sometimes slightly villose at center, easy to peel to 2 / 3 radius, white (# FFFAFA) to pinkish (# FAEBD 7) at margin, pink, fuchsia pink to rosy (# F 97 D 8 E, # C 85868, # DF 828 F) at center; margin smooth and entire at first, turning striate with age, sometimes cracked. Lamellae adnate, dense at first, becoming scattered with age, interveined, white when young, turning yellowish cream (# FCF 3 CF, # FEF 9 E 7) at maturity; edge concolorous, smooth; lamellulae irregularly dispersed. Stipe central, fleshy, fragile, cylindrical, often curved, solid at first, turning hollow to multi-chambered with age, 0.7 – 1.2 × 0.2 – 0.4 cm, white to yellowish cream (# FCF 3 CF, # F 8 F 9 C 2), sometimes slightly villose. Context white, sometimes yellowing at lower part of the stipe; taste mild; odor indistinct. Spore print pale cream (# F 3 E 2 A 9). Basidiospores subglobose to ellipsoid, rarely globose, (40 / 2 / 2) (5.0 –) 5.3 – 5.8 – 6.1 (– 6.6) × (4.1 –) 4.3 – 4.6 – 4.9 (– 5.2) μm, [Q = (1.11 –) 1.15 – 1.22 – 1.30], hyaline in 5 % KOH; ornamentation amyloid, conical to cylindrical warts less than 1.5 μm in height, mostly isolated, rarely fused into short crest, but not reticulate; suprahilar spot amyloid. Basidia clavate, 2 - or 4 - spored, thin-walled, with irregular contents or dorplets, small, (17 –) 17.5 – 21 – 27 (– 29.5) × 7 – 8.5 – 9.5 (– 10) μm; sterigmata 2.2 – 4.8 × 0.9 – 1.7 μm. Pleurocystidia subcylindrical to fusiform, with obtuse, papillate or mucronate apices, thin-walled, with irregular refractive contents, weakly SV + or SV-, 26.5 – 36 – 48 (– 52.5) × 4 – 6 – 7 μm. Cheilocystidia similar to pleurocystidia, but shorter, 20 – 31 – 40 (– 47) in length. Subhymenium pseudoparenchymatous. Lamellar trama composed of numerous sphaerocytes surrounded by connective hyphae, sphaerocytes measuring 21 – 28 μm in diam. Pileipellis 60 – 120 μm thick, gelatinized, composed of ascending to erect hyphae; hyphae cylindrical, thin-walled, hyaline, sometimes branched, 1.5 – 4 μm wide; terminal cells cylindrical, slender, with obtuse or tapering apices, thin-walled, hyaline, (7 –) 8 – 18 – 31 (– 44) × 2 – 2.5 – 3.5 μm. Pileocystidia one-celled, abundant, subcylindrical to subclavate, obtuse or papillate, sometimes branched, with refractive contents, becoming brown in SV, (15.5 –) 16 – 46 – 106 (– 130) × 3 – 4.5 – 6.5 μm. Stipitipellis a cutis, composed of cylindrical, septate, thin-walled, hyaline hyphae measuring 1 - 3 μm in diam.; terminal cells cylindrical with obtuse apices, hyaline, 9 – 13.5 – 16 (– 18) × 2.5 – 3 – 4 μm. Caulocystidia subcylindrical, with obtuse apices, with irregular refractive contents, becoming brown in SV, (16.5 –) 21 – 35 – 62 (– 85.5) × 3 – 5 – 6.5 μm. Clamp connections absent in all tissues.	en	Song, Yu, Xie, Xiu-Chao, Buyck, Bart (2021): Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy 775: 15-33, DOI: 10.5852/ejt.2021.775.1543
