taxonID	type	description	language	source
03997179FFC5FF9EC7DBFB23FDD3291F.taxon	etymology	Etymology: — ‘ subtropicus ’ (Latin), referring to the subtropical habitat. Diagnosis: — This species has a white to light brown depressed pileus with finely pubescent margin, cream decurrent lamellae, a yellow-brown stipe with basal rhizoids, and verrucose basidiospores. Similar to R. tricholoma, but differs by its nearly naked to indistinct pubescent pileus margin, the concurrent presence of mono-, bi- and tetrasporic basidia, and its subtropical habitat. Type: — CHINA. Guizhou Province: Shuicheng County, Shuicheng National Rhododendron Garden, on humus covered with needle litter of Pinus armandii Franch., alt. 1982 m, at 26 ° 47 ' 34.82 '' N, 104 ° 49 ' 4.63 '' E, 17 June 2023, Z. M. He 1, MHHNU 20001 (holotype!). Description: — Fruitbody small-sized, omphalioid. Pileus 10 – 30 mm in diam, applanate to slightly depressed with an unconspicuous papilla at center, hygrophanous; surface white (1 A 1) when dry, light brown (3 A 2 – 3) when wet, yellowish brown (5 A 2 – 4) at center, smooth, not gelatinized; margin inflexed to involute when young, straight when old, finely white (1 A 1) pubescent at very margin, not striate; context thin (1 – 2 mm thick), white (1 A 1). Lamellae decurrent, subcrowded, sometimes furcate near stipe apex, arcuate, cream (1 A 2), narrow (1 – 2 mm high); edges even. Stipe 14 – 35 × 2 – 3 mm, central or somewhat eccentric, solid, equal, often flexuous; surface wet, yellow-brown (3 B 4 – 6), finely white-fibrillose longitudinally; base not inflated, with white (1 A 1) rhizomorphs; context white (1 A 1). Odor fungoid and pleasant. Chemical spot test: surface of dried pileus and stipe produces a negative reaction to 30 % KOH. Basidiospores [100 / 3 / 3] (4 –) 4.5 – 5.5 × 4 – 5 μm, Q = (1.02 –) 1.04 – 1.23 (– 1.28), Qm = 1.13 ± 0.06, pale brown, subglobose to broadly ellipsoid, with verrucae 0.4 – 0.6 × 0.3 – 0.4 μm, thin-walled, inamyloid. Basidia 20 – 27 × 6 – 9 μm, clavate, hyaline, thin-walled, 1 -, 2 - or 4 - spored; sterigmata up to 9 μm long. Pleurocystidia and cheilocystidia absent. Lamellar trama subregular, composed of thin-walled, cylindrical, non-branched hyphae 4 – 10 µm wide. Pileipellis a cutis, composed of parallel to slightly interwoven, thin-walled, cylindrical hyphae 3 – 6 μm wide, with clusters of filamentous hyphae at margin. Stipitipellis a cutis, composed of parallel, thin-walled hyphae 4 – 8 μm wide. Clamp connections present in all tissues. Ecology: — Solitary, on humus, in subtropical montane forests; summer. Distribution: — Only known from Southwestern and Central China. Additional specimens examined: — CHINA. Hubei Province: Qingchuan County, southern district of Shennongjia Forestry, on humus covered with oak leaf litter, alt. 1800 m, at 31 ° 24 ' 54.14 '' N, 110 ° 29 ' 58.53 '' E, 16 July 2012, J. Qin 555, KUN-HKAS 77956. Guizhou Province: Leishan County, Leigong Mountain National Forest Park, on humus covered with leaf litter of Pinus fenzeliana Hand. - Mazz and Fagus sp., alt. 1730 m, at 26 ° 22 ' 36.81 '' N, 108 ° 11 ' 58.19 '' E, 21 June 2023, Z. M. He 17, MHHNU 20017.	en	Yang, Yu-Zhi, Deng, Peng-Tao, Yan, Jun, Xiao, Ying-Qun, Zhang, Ping, Chen, Zuo-Hong, He, Zheng-Mi (2025): Ripartites subtropicus (Paralepistaceae, Agaricales), a newly discovered species from subtropical China. Phytotaxa 705 (1): 50-62, DOI: 10.11646/phytotaxa.705.1.4, URL: https://doi.org/10.11646/phytotaxa.705.1.4
