identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03EA686C8820FFA4FF0FB9C5EBCDFD1C.text	03EA686C8820FFA4FF0FB9C5EBCDFD1C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Arxiella longispora Yue Xu, T. Qiu, S. Gao, W. Meng & L. J. Xu. 2023	<div><p>Arxiella longispora Yue Xu, T. Qiu, S. Gao, W. Meng &amp; L.J. Xu. sp. nov. (FIGURE 3)</p><p>Mycobank No.: MB838820</p><p>Type: —   CHINA. HEILONGJIANG: Greater Hinggan Mountains, 52.33°N, 124.7°E, alt. Ex leaves ( Populus davidiana .,  Betula platyphylla,  Larix gmelinii . and  Pinus Sylvestris) litter (MEFL706), 10 Oct, 2017, J. Liang, B. Liu, W. Meng, Q. Wang &amp; L. Xu, HMPHU 1245 (holotype)  . Ex-type living culture CCTCC M 2021101 (SGSF 303). GenBank: ITS = MT 921658; LSU = MW 519910; rpb2 = MW 717995; tef1 = MW 883564.</p><p>Colonies on PDA, and MEA, reaching 22.00– 22.33 mm after 12 d, smooth, velvet, firstly off-white hyphae, becoming grayish-brown on PDA or grayish-green on MEA after 1 wk; reverse amber, with off-white, smooth, even margin; exudate clear. Colonies on OA reaching 22.00 mm after 12 d, smooth with white hyphae, light yellow to light brown plaques; aerial hyphae sparse, with wavy edge after 3 wk; reverse milk white (Fig. S1). Colonies on CMA reaching 16 mm after 12 d; aerial hyphae dense, becoming grayish towards the outside with black secretions; reverse dark gray (FIGURE S1).</p><p>Hyphae septate, branched, hyaline to brown, 1.5–5 μm diam. Conidiophores filamentous, smooth, unbranched, or dichotomously branched, ovoid, clavate, cylindrical or irregular. Conidia (13–)14–22(–24) × 3–4 μm (x̄ = 17.8 × 3.5 μm, n = 100), reniform or cylindrical, hyaline, smooth, guttulate, solitary or occasionally interconnected, medianly 1-septate or no septate, inner plane with apical and basal horn-like appendages, with or without a slightly raised hilum near the base of one of the appendages. Chlamydospores absent. Sexual morph absent.</p><p>The optimal temperatures for the colony growth of SGSF 303 on PDA were in the range of 20 ℃ to 25 ℃ where the colony reached around 22 mm diam. in 12 d (FIGURE S2). Growth rates were similar between pH 5 and 10 on PDA for 12 d, but at the pH 4 the fungus had significantly reduced growth speed (5.67 mm, FIGURE S2).</p><p>Diagnosis: — Colonies grayish brown on surface; conidiophore hyaline, dichotomously branched; conidia up to more than 20 μm long, hyaline, reniform or cylindrical, inner plane with apical and basal horn-like appendages, medianly 1-septate.</p><p>Etymology: —Referring to its long spores.</p><p>Habitat: —Forest litters.</p><p>Known Distribution: —Greater Hinggan mountains, Heilongjiang province, China.</p><p>Additional isolates examined: — CHINA, Heilongjiang province, Maoershan, leaves ( Populus davidiana,  Betula platyphylla) litter and soil, September 2018, Siyu Gao SGSF411, ibid. SGSF573.</p><p>Notes: —  Arxiella longispora is distinct from three asexual morphs in  Arxiella,  A. dolichandrae,  A. lunata, and  A. terrestris, by having longer conidia (up to 24 μm long) with a larger length-to-width ratio (&gt;5) (TABLE 2). The closest taxa of  A. longispora is  A. terrestris based on the similarity of different DNA sequences. The ITS, rpb2 and tef1 sequences of  A. longispora showed 97.73%, 94.42%, and 98.61% similarity to  A. terrestris, respectively (TABLE S2). Morphologically,  A. longispora is closer to  A. terrestris and  A. dolichandrae due to shape of the conidia which have a straight inner side. In comparison,  A. lunata has conidia with a curved inner side. The black-brown colonies of  A. longispora on PDA was different with  A. terrestris, which shows black-green colonies on PDA. In addition,  A. longispora produces unique conidia as mentioned above, but  A. celtidis as the only sexual morph do not produce any asexual morph in the culture.</p></div>	https://treatment.plazi.org/id/03EA686C8820FFA4FF0FB9C5EBCDFD1C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Xu, Yue;Du, Tingting;Liu, Yao;Qiu, Tianyi;Gao, Siyu;Meng, Wei;Xu, Lijian	Xu, Yue, Du, Tingting, Liu, Yao, Qiu, Tianyi, Gao, Siyu, Meng, Wei, Xu, Lijian (2023): Arxiella longispora (Muyocopronaceae), a new fungal species from forest litters in Northeast China. Phytotaxa 616 (2): 160-168, DOI: 10.11646/phytotaxa.616.2.5, URL: http://dx.doi.org/10.11646/phytotaxa.616.2.5
