taxonID	type	description	language	source
314F9605EDAA5568B95948406818050D.taxon	description	Figs 2, 3, 4, 5	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
314F9605EDAA5568B95948406818050D.taxon	diagnosis	Diagnosis. Pileus greyish-rose, umbo brownish-orange, hygrophanous. Stipe pubescent. Pleurocystidia polymorphic in shape. Stipitipellis a cutis, with numerous projecting hyphae.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
314F9605EDAA5568B95948406818050D.taxon	etymology	Etymology. Refers to the variable shape of pleurocystidia.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
314F9605EDAA5568B95948406818050D.taxon	description	Description. Pileus 14 - 31 mm in diam., campanulate to hemispherical when young, plano-convex with age, with obtuse umbo at centre, margin slightly revolute, at times cracked at mature; umbo brownish-orange (7 C 3 - 7 C 5), disc purplish-grey (13 C 2, 14 B 2, 14 C 2), reddish-grey (12 B 2, 12 C 2) to greyish-rose (12 B 3), near margin reddish-grey (12 D 2), greyish-ruby (12 D 3) or purplish-grey (13 D 3), margin whitish; striate none or indistinct, greyish-ruby (12 E 3 - 12 E 4), towards the centre up to 1 / 3 diam.; surface dry and rugose, hygrophanous, generally tomentose. Context white, 2 mm thick, fragile. Lamellae emarginate, slightly decurrent when old, 20 - 28 reaching the stipe, 1 - 2 tiers of lamellulae, white, irregularly intervenose, edge concolorous, wavy. Stipe 34 - 73 x 3 - 7 mm, central, cylindrical, base occasionally compressed with age; apex violet brown (11 E 3 - 11 E 4, 11 F 4), greyish-ruby (12 E 4), lower part brownish-grey (11 D 2, 11 E 2) to greyish-brown (11 D 3, 11 E 3) or purplish-grey (13 C 2), fragile, hollow; apex to middle densely pubescent, sparser towards base; whitely villose at base. Odour strongly raphanoid, taste indistinct. Basidiospores (130 / 5 / 4) (6.4) 6.7 - 7.4 - 8.3 (8.8) x (3.2) 3.5 - 3.9 - 4.3 (4.6) μm [Q = (1.62) 1.72 - 2.05 (2.18), Q = 1.90 + / - 0.11] [holotype (70 / 2 / 1) (6.7) 6.9 - 7.6 - 8.5 (8.7) x (3.4) 3.6 - 4.0 - 4.4 (4.6) μm, Q = (1.71) 1.76 - 2.05 (2.13), Q = 1.90 + / - 0.09], elongated ellipsoid to cylindrical, colourless, smooth, thin-walled, amyloid. Basidia 21 - 31 x 6 - 8 μm, 4 - spored, clavate, hyaline, sterigmata approximately 4 μm in length. Cheilocystidia thin-walled, hyaline, differs in two shapes, mainly utriform, 50 - 65 x 20 - 31 μm, some subclavate, 54 - 78 x 14 - 19 μm. Pleurocystidia abundant, thin-walled, hyaline, multi-shaped: lanceolate and mostly round to blunt apices, 37 - 81 x 12 - 20 μm, lanceolate and acute apices, 51 - 87 x 14 - 22 μm, elliptical, 30 - 86 x 12 - 31 μm, ovate and acute apices, 49 - 71 x 15 - 24 μm, ovate and mostly round to blunt apices, 49 - 73 x 16 - 22 μm. Pileipellis a cutis composed of four to five layers cylindrical cells, 51 - 81 x 4 - 5 μm, smooth and thin-walled; terminal cells cylindrical or fusiform, 50 - 69 x 3 - 22 μm, thin-walled, hyaline. Hypodermium formed by fusiform to subglobose hyphae, 32 - 69 x 18 - 54 μm, thin-walled, hyaline. Lamellar trama subregular, dextrinoid. Stipitipellis a cutis composed of cylindrical hyphae 5 - 8 μm in diam., smooth, thin-walled, with numbers of projecting hyphae 2 - 6 μm in diam.; caulocystidia 29 - 74 x 6 - 19 μm, clavate or fusiform, thin-walled, smooth, hyaline. Clamps present in all tissues.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
314F9605EDAA5568B95948406818050D.taxon	distribution	Known distribution. Heilongjiang Province, China.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
314F9605EDAA5568B95948406818050D.taxon	materials_examined	Additional material examined. China. Heilongjiang Province: Liangshui National Nature Reserve, Yichun City, 47 ° 12 ' 82 " N, 128 ° 52 ' 94 " E, 20 August 2021, Zewei Liu, Yupeng Ge, Qin Na and Shixin Wang, FFAAS 0418 (collection number MY 0634); same location, 21 August 2021, Zewei Liu, Yupeng Ge, Qin Na and Shixin Wang, FFAAS 0421 (collection number MY 0659); same location, 21 August 2021, Zewei Liu, Yupeng Ge, Qin Na and Shixin Wang, FFAAS 0422 (collection number MY 0661).	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
A5644585F3C2536CB1B0C0ADB1C6B3C4.taxon	description	Figs 6, 7, 8	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
A5644585F3C2536CB1B0C0ADB1C6B3C4.taxon	diagnosis	Diagnosis. Pileus dark brown at centre, disc gradually turning paler to reddish-brown to greyish-brown, edge white. Lamellae obviously intervenose. Stipe apex to middle greyish-magenta to dull violet, lower part darker to dark purple or dark magenta. Cheilocystidia utriform, sometimes clavate. Pleurocystidia absent. Caulocystidia clavate or fusiform. Pileipellis with fusiform terminal cells.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
A5644585F3C2536CB1B0C0ADB1C6B3C4.taxon	etymology	Etymology. Refers to reddish-brown pileus.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
A5644585F3C2536CB1B0C0ADB1C6B3C4.taxon	description	Description. Pileus 12 - 34 mm in diam., hemispherical to convex when young, then plano-convex, sometimes an unclear umbo at centre, margin slightly revolute, acute to subacute, at times cracked at mature; dark brown (8 F 6 - 8 F 8) at centre, disc gradually turning paler to reddish-brown (8 D 4 - 8 D 5, 8 E 6 - 8 E 8) to greyish-brown (8 D 3) and turning to whitish at margin; striate reddish-brown (8 D 4 - 8 D 5, 8 E 6 - 8 E 8), towards the centre up to 1 / 3 - 1 / 2 diam.; surface humidus when wet. Context white, 1.5 mm thick, fragile. Lamellae adnexed to emarginate, 20 - 23 reaching the stipe, 1 - 3 tiers of lamellulae, white, irregularly intervenose, edge concolorous, slightly serrulate. Stipe 19 - 62 x 2 - 6 mm, central, cylindrical, apex to middle greyish-magenta (14 E 4 - 14 E 5) to dull violet (16 E 3 - 16 E 4), lower part darker to dark purple (14 F 4 - 14 F 5) or dark magenta (13 F 3), fragile, hollow, base slightly swollen with whitish villose. Odour raphanoid, taste indistinct. Basidiospores (80 / 4 / 3) (7.1) 7.6 - 8.4 - 9.2 (9.6) x (3.8) 4.0 - 4.5 - 5.0 μm [Q = (1.73) 1.77 - 1.98 (2.05), Q = 1.88 + / - 0.07] [holotype (40 / 2 / 1) (7.9) 8.1 - 8.6 - 9.2 (9.4) x 4.2 - 4.6 - 5.0 μm, Q = (1.73) 1.77 - 1.96 (1.98), Q = 1.87 + / - 0.06], elongated ellipsoid to cylindrical, colourless, smooth, thin-walled, amyloid. Basidia 24 - 34 x 7 - 10 μm, 4 - spored, clavate, hyaline, sterigmata 2 - 3 μm in length. Cheilocystidia thin-walled, hyaline, utriform, sometimes clavate, 23 - 44 x 7 - 17 μm, abundant. Pleurocystidia absent. Pileipellis a cutis composed of four to five slightly interwoven layers of cylindrical cells, 44 - 70 x 4 - 7 μm, smooth, thin-walled; terminal cells cylindrical or fusiform, 34 - 65 x 4 - 17 μm, thin-walled, hyaline. Hypodermium formed by fusiform, subcylindrical to subglobose hyphae, 15 - 50 x 12 - 37 μm, thin-walled, hyaline. Lamellar trama subregular, dextrinoid. Stipitipellis a cutis composed of hyphae 3 - 9 μm in diam., smooth, thin-walled; caulocystidia common in the apex, sparse in the middle and base, 23 - 76 x 6 - 14 μm, clavate and fusiform, thin-walled, hyaline, smooth. Clamps present in all tissues.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
A5644585F3C2536CB1B0C0ADB1C6B3C4.taxon	distribution	Known distribution. Jilin Province, China.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
A5644585F3C2536CB1B0C0ADB1C6B3C4.taxon	materials_examined	Additional material examined. China. Jilin Province: Dayangcha, Erdaobaihe Town, Antu County, Yanbian Korean Autonomous Prefecture, 42 ° 20 ' 72 " N, 127 ° 56 ' 08 " E, 16 August 2021, Zewei Liu, Yupeng Ge, Qin Na and Shixin Wang, FFAAS 0414 (collection number MY 0579); same location, 16 August 2021, Zewei Liu, Yupeng Ge, Qin Na and Shixin Wang, FFAAS 0415 (collection number MY 0580).	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
53D69B3C50BD5DF48FBDBF102F7EE427.taxon	description	Figs 9, 10, 11, 12	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
53D69B3C50BD5DF48FBDBF102F7EE427.taxon	diagnosis	Diagnosis. Pileus brown to violet-brown at centre, disc light brown to dull red. Cheilocystidia clavate with slightly inflated apex, thick-walled. Pleurocystidia absent. Caulocystidia clavate with tapered apices, apex to middle thick-walled. Scattered to gregarious under Larix gmelinii.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
53D69B3C50BD5DF48FBDBF102F7EE427.taxon	etymology	Etymology. Refers to the type locality.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
53D69B3C50BD5DF48FBDBF102F7EE427.taxon	description	Description. Pileus 13 - 26 mm in diam., when young parabolic to convex, with obtuse umbo at centre, then plano-convex, margin wavy and revolute, at times cracked at mature; centre light brown (7 D 5 - 7 D 6), brown (7 E 4 - 7 E 8), dark brown (8 F 5 - 8 F 6), violet brown (11 F 4 - 11 F 6), disc paler to light brown (7 D 4 - 7 D 5), brown (7 E 5 - 7 E 6), greyish-brown (8 D 3), reddish-brown (8 D 4, 8 E 4), brownish-grey (11 C 2), dull red (11 C 3), margin whitish; striate indistinct, brownish-orange (7 C 3), greyish-brown (7 D 3), reddish-grey (12 D 2), greyish-ruby (12 E 3 - 12 E 5), towards the centre up to 1 / 3 - 1 / 2 diam.; surface slightly moist, smooth. Context white, 1 - 2 mm thick, fragile. Lamellae sinuate to subdecurrent, 19 - 25 reaching the stipe, 1 - 3 tiers of lamellulae, white, irregularly intervenose, edge concolorous, wavy and slightly serrulate. Stipe 26 - 42 x 2 - 4 mm, central, cylindrical, apex reddish-brown (8 E 4 - 8 E 5), greyish-ruby (12 E 4 - 12 E 5), greyish-brown (11 F 3), violet brown (11 F 4 - 11 F 5), dark ruby (12 F 4 - 12 F 5), lower part paler to brownish-grey (7 C 2), brownish-orange (7 C 3), greyish-brown (11 E 3), greyish-ruby (12 E 3), base darker to brown (7 E 5), reddish-brown (8 E 4 - 8 E 5), greyish-brown (11 F 3), violet brown (11 F 4 - 11 F 5), greyish-ruby (12 E 3), dark ruby (12 F 6 - 12 F 8), fragile, hollow, base swollen with white fibrils. Odour raphanoid, taste indistinct. Basidiospores (60 / 3 / 2) (5.9) 6.1 - 6.9 - 8.1 (8.7) x 3.4 - 4.0 - 4.4 (4.7) μm [Q = 1.62 - 1.93 (1.97), Q = 1.75 + / - 0.09] [holotype (40 / 2 / 1) 6.1 - 7.0 - 8.2 (8.7) x 3.4 - 4.0 - 4.4 (4.7) μm, Q = (1.62) 1.65 - 1.93 (1.97), Q = 1.77 + / - 0.08], elongated ellipsoid, colourless, smooth, thin-walled, amyloid. Basidia 22 - 32 x 6 - 8 μm, 4 - spored, clavate, hyaline, sterigmata 3 - 4 μm in length. Cheilocystidia moderately thick-walled (0.5 - 0.6 μm), clavate with slightly inflated apex, 25 - 63 x 6 - 12 μm, hyaline. Pleurocystidia absent. Pileipellis a cutis composed of three to four layers of cylindrical cells, 24 - 57 x 3 - 5 μm, smooth and thin-walled; terminal cells cylindrical, apically narrow, 28 - 49 μm in length, apex 1 - 3 μm and base 2 - 5 μm in diam., thin-walled, hyaline. Hypodermium formed by fusiform to subglobose hyphae, 19 - 53 x 13 - 30 μm, thin-walled, hyaline. Lamellar trama subregular, weakly dextrinoid to dextrinoid. Stipitipellis a cutis composed of hyphae 4 - 9 μm in diam., smooth, thin-walled; caulocystidia 22 - 61 x 5 - 20 μm, clavate with tapered apices, apex to middle thick-walled, smooth, hyaline. Clamps present in all tissues.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
53D69B3C50BD5DF48FBDBF102F7EE427.taxon	distribution	Known distribution. Heilongjiang Province, China.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
53D69B3C50BD5DF48FBDBF102F7EE427.taxon	materials_examined	Additional material examined. China. Heilongjiang Province: Shengshan National Nature Reserve, Heihe City, 23 August 2021, Zewei Liu, Yupeng Ge, Qin Na and Shixin Wang, FFAAS 0425 (collection number MY 0687).	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
E08A7A12E21E5CD0B4D92B1C693B32FC.taxon	description	Figs 13, 14, 15	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
E08A7A12E21E5CD0B4D92B1C693B32FC.taxon	diagnosis	Diagnosis. Pileus reddish-grey to dull red, slightly hygrophanous. Cheilocystidia thick-walled, slenderly fusiform with distinctly long and narrow protuberance. Stipitipellis a cutis, with projecting hyphae, caulocystidia thick-walled.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
E08A7A12E21E5CD0B4D92B1C693B32FC.taxon	etymology	Etymology. Refers to cheilocystidia with distinctly long and narrow protuberance.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
E08A7A12E21E5CD0B4D92B1C693B32FC.taxon	description	Description. Pileus 9 - 32 mm in diam., convex to campanulate when young, hemispherical to applanate with age, margin sometimes wavy, slightly deflexed; at centre dull red (8 C 3), brownish-grey (8 D 2), greyish-brown (8 D 3), reddish-brown (8 D 4, 8 E 4 - 8 E 5) and dark brown (8 F 5), disc paler to reddish-grey (8 B 2, 9 B 2), brownish-grey (9 C 2), dull red (9 B 3, 9 C 3), greyish-magenta (13 D 3), margin light brown (7 D 4), brown (7 E 4) or dull red (9 C 3); striate none or indistinct, reddish-brown (8 E 4 - 8 E 5), towards the centre up to 1 / 5 diam.; surface dry, unclearly rugose or none, margin slightly hygrophanous. Context white, 1 mm thick, fragile. Lamellae sinuate to subdecurrent, 31 - 33 reaching the stipe, 1 - 3 tiers of lamellulae, white, irregularly intervenose, edge concolorous, wavy and slightly serrulate. Stipe 27 - 75 x 2 - 5 mm, central, cylindrical, apex to middle brownish-orange (7 C 3), dull red (8 C 3), brownish-grey (7 D 2), greyish-magenta (14 D 3), lower part brownish-grey (8 C 2), greyish-brown (8 D 3), reddish-brown (8 D 4), fragile, hollow, white granular near apex, base slightly swollen with white fibrils. Odour raphanoid, taste indistinct. Basidiospores (100 / 5 / 4) 6.0 - 6.7 - 7.3 (7.9) x 3.3 - 3.8 - 4.3 (4.6) μm [Q = (1.61) 1.65 - 1.87 (1.90), Q = 1.76 + / - 0.07] [holotype (40 / 2 / 1) (6.0) 6.2 - 6.6 - 7.1 x 3.4 - 3.7 - 4.0 (4.2) μm, Q = 1.65 - 1.87 (1.90), Q = 1.78 + / - 0.07], elongated ellipsoid, colourless, smooth, thin-walled, amyloid. Basidia 23 - 34 x 5 - 6 μm, 4 - spored, clavate, hyaline, sterigmata 2 - 3 μm in length. Cheilocystidia moderately thick-walled (0.5 - 0.6 μm), hyaline, narrowly fusiform with long and narrow protuberance, 43 - 82 x 4 - 11 μm, protuberance 14 - 36 x 1 - 2 μm. Pleurocystidia absent. Pileipellis a cutis composed of three to four layers of cylindrical cells, 20 - 89 x 3 - 7 μm, smooth and thin-walled; terminal cells cylindrical, apically narrow, 24 - 61 μm in length, the apex 3 - 4 μm and base 4 - 7 μm in diam., thin-walled, hyaline. Hypodermium formed by fusiform to subglobose hyphae, 21 - 41 x 17 - 25 μm, thin-walled, hyaline. Lamellar trama subregular, dextrinoid. Stipitipellis a cutis composed of hyphae 3 - 8 μm in diam., smooth, thin-walled, with projecting hyphae 3 - 8 μm in diam.; caulocystidia 29 - 47 x 6 - 12 μm, clavate and apices tapered, thick-walled (0.5 - 0.6 μm), smooth. Clamps present in all tissues.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
E08A7A12E21E5CD0B4D92B1C693B32FC.taxon	distribution	Known distribution. Heilongjiang Province, China.	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
E08A7A12E21E5CD0B4D92B1C693B32FC.taxon	materials_examined	Additional material examined. China. Heilongjiang Province: Liangshui National Nature Reserve, Yichun City, 21 August 2021, Zewei Liu, Yupeng Ge, Qin Na and Shixin Wang, FFAAS 0419 (collection number MY 0654); same location, 21 August 2021, Zewei Liu, Yupeng Ge, Qin Na and Shixin Wang, FFAAS 0420 (collection number MY 0657); Heilongjiang Province: Taipinggou National Nature Reserve, Hegang City, 3 September 2021, Shixin Wang, FFAAS 0426 (collection number MY 0795).	en	Liu, Zewei, Ge, Yupeng, Zeng, Hui, Cheng, Xianhao, Na, Qin (2022): Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China. MycoKeys 93: 23-56, DOI: http://dx.doi.org/10.3897/mycokeys.93.86580, URL: http://dx.doi.org/10.3897/mycokeys.93.86580
