taxonID	type	description	language	source
DD2987E8FF87F93DEDD24B90FD37F95A.taxon	etymology	Etymology: — referring to the lack of setae. Type: — CHINA, Guizhou Province: Kaili City, isolated forest soil, 26.2402 ° N, 107.7722 ° E, 1500 m above sea level, 15 March 2018, K. Y. Wang & T. P. Wei (holotype HGUP 1806, isotype CGMCC 3.19620, ex-type living culture GUCC 1806). Description: — Mycelium consisting of smooth, subhyaline to brown, branched, thin-walled, septate, 2 – 4 µm diam hyphae. Conidiophores macronematous, mononematous, solitary, branched at the apex, scattered, wider at the base, erect, brown, paler and slightly tapering upward, straight or slightly flexuous, smooth, septate, cylindrical, 50 – 372 × 4.5 – 9.5 μm. Conidiogenous cells integrated, terminal, cylindrical or lageniform to ampulliform, with a conspicuous outer collarette, subhyaline to pale brown, smooth, 5.0 – 10 × 2.0 – 3.5 µm. Conidia obovoid or ellipsoidal, acrogenous, subhyaline to pale brown, solitary, aseptate, guttulate, thin-walled, 2.5 – 5.0 × 2 – 2.5 μm. Sexual stage not observed. Culture characteristics: — Colonies on PDA effuse, thinly hairy, with sparse to moderate aerial hypha, pale to medium brown, reaching 20 mm diam at 25 ± 1 ° C after 7 days. Notes: — Chloridium paucisetosum shares a few morphological similarities with C. aquaticum, C. humicola and C. terricola in having branched conidiophores and phialidic conidiogenous cells. Nevertheless, C. paucisetosum showed high heterogeneity, forming a monophyletic clade, which was genetically distant from all species (Fig. 1). Morphologically, C. paucisetosum can also be distinguished from these species. Chloridium aquaticum produces ellipsoidal to cylindrical conidia in slimy masses (Wei et al. 2018); The conidia of the C. humicola are aggregating in hyaline slimy masses and smaller (2.7 – 3.6 × 1.5 – 2.0 µm), as well as longer conidiophores (700 × 8.0 µm; Jong & Davis 1972); C. terricola differs by its truncate at the base and smaller conidia (2 – 3 × 2 – 2.5 µm; Wang et al. 2017). Furthermore, The PHI tests revealed that no evidence of recombination (Фw = 0.2545) was detected between C. paucisetosum and its closely related taxa (Fig. 2).	en	Wei, Tian-Peng, Wang, Kun-Ying, Zhang, Hong, Luo, Ming-Yan, Jia, Wei-Yu, Zeng, Yan, Jiang, Yu-Lan (2022): A new species and a new combination of Chloridium from southwest China. Phytotaxa 549 (1): 67-76, DOI: 10.11646/phytotaxa.549.1.5
DD2987E8FF86F93EEDD248EAFEE0FF07.taxon	description	Description: — Jong & Davis (1972). Notes: — Phialocephala humicola was initially reported as saprophytes on soil in New Jersey, USA (Jong & Davis 1972). Although we did not isolate the type strains, we have examined the DNA sequence data from ex-type culture and another culture deposited under that species name in GenBank. Multi-locus phylogenetic analyses indicate that this species formed a well-supported monophyletic lineage in Chloridium, and can be differentiated from the other species in Chloridium by its morphological characteristics and DNA sequence data (Fig 1, 2; Jong & Davis 1972). Based on morphological characters and phylogenetic analyses, we therefore transferred P. humicola to Chloridium as a new combination.	en	Wei, Tian-Peng, Wang, Kun-Ying, Zhang, Hong, Luo, Ming-Yan, Jia, Wei-Yu, Zeng, Yan, Jiang, Yu-Lan (2022): A new species and a new combination of Chloridium from southwest China. Phytotaxa 549 (1): 67-76, DOI: 10.11646/phytotaxa.549.1.5
DD2987E8FF85F93EEDD24F4EFB80FC76.taxon	description	Description: — Mycelium immersed or superficial, composed of hyaline to light brown, smooth, septate, 2 – 4 μm wide hyphae. Conidiophores solitary, tapering from the swollen base towards the apex, unbranched, septate, dark brown and paler towards the apex, some with a terminal sporulating phialide, others with a sterile ending, with 2 – 5 whorls of phialides in the midsection to lower section, 165 – 356 × 4.5 – 7.0 μm. Conidiogenous cells cylindrical to lageniform, producing conidia from multiple enteroblastic conidiogenous loci, phialides borne on collar hyphae around the conidiophore, 7.5 – 18.5 × 3.5 – 5.0 µm. Conidia ellipsoidal to subglobose, aseptate, colorless or olivaceous to light green, smooth, guttulate, 3.0 – 5.0 × 2.5 – 3.0 μm. Sexual stage not observed. Culture characteristics: — Colonies on PDA flattened, with rough surface and dense mycelia, light olivaceous to dark olivaceous brown, with a broad hyaline margin, reaching 24 mm diam at 25 ± 1 ° C after 7 days. Material examined: — CHINA, Guizhou Province: Kaili City, isolated from forest soil, 26.2402 ° N, 107.7722 ° E, 1500 m above sea level, 15 March 2018, K. Y. Wang & T. P. Wei (HGUP 1805), living culture CGMCC 3.19590 and GUCC 1805. Notes: — Multi-locus phylogenetic analyses indicated that our isolate CGMCC 3.19590 clusters in a clade closely related to C. gonytrichii with high statistical support (Fig. 1). Morphologically, the conidial dimensions in the present study fit exactly with those in Bao et al. (2021). Therefore, this species was identified as C. gonytrichii by combined morphology and phylogenetic analyses. Moreover, this report of this poorly known taxon extends its distribution to southwest China from its original location in Puerto Rico (Réblová et al. 2016).	en	Wei, Tian-Peng, Wang, Kun-Ying, Zhang, Hong, Luo, Ming-Yan, Jia, Wei-Yu, Zeng, Yan, Jiang, Yu-Lan (2022): A new species and a new combination of Chloridium from southwest China. Phytotaxa 549 (1): 67-76, DOI: 10.11646/phytotaxa.549.1.5
