Heveicola xishuangbannaensis R.F. Xu, K.D. Hyde & Tibpromma, 2022
publication ID |
https://doi.org/ 10.11646/phytotaxa.530.1.5 |
DOI |
https://doi.org/10.5281/zenodo.5823951 |
persistent identifier |
https://treatment.plazi.org/id/03ED87B5-FFBB-2308-11A6-DE45FC1027EB |
treatment provided by |
Plazi |
scientific name |
Heveicola xishuangbannaensis R.F. Xu, K.D. Hyde & Tibpromma |
status |
sp. nov. |
Heveicola xishuangbannaensis R.F. Xu, K.D. Hyde & Tibpromma , sp. nov. ( Fig. 2 View FIGURE 2 )
Index Fungorum Number: IF558799 ; Facesoffungi Number: FOF10491
Holotype:— HKAS 115759 View Materials
Etymology:— named after the location Xishuangbanna where the fungus was first discovered.
Saprobic on rubber latex of Hevea brasiliensis . Sexual morph: Undetermined. Asexual morph: Hyphomycetous. Colonies on natural substrate consisting of long, effuse, dark synnemata, scattered, somewhat hairy, mass of spores all over the surface. Synnemata 850–1000 × 90–135 μm (x̅=943 × 112 μm, n=6), consisting of pale brown to dark brown, cylindrical, septate, unbranched, smooth-walled conidiophores. Conidia 15–40 × 5–8 μm (x̅=26.6 × 6.5 μm, n=20), catenate, cylindrical, 0–4 to multiseptate (on PDA, conidia up to 20-septate), slightly constricted at median septum, rounded at both ends, formed in acropetal chains, initially hyaline, then pale brown to brown, often with a dark brown band at the septa, guttulate, thick- and rough-walled.
Culture characteristics:— cultures on PDA, colonies slow growing, umbonate, curled, smooth, edges brown, dark brown, mycelia 2.5–6 μm wide, hyaline, septate, conidia 10–70 × 5–12 μm (x̅=27.7 × 6.8 μm, n=30), oblong, up to 20-septate, pale brown to brown, thick- and rough-walled ( Fig. 3 View FIGURE 3 ).
Material examined:— CHINA. Yunnan Province: Xishuangbanna Tropical Botanical Garden, on old rubber latex (oozing from the trunk) of Hevea brasiliensis Müll.Arg. , 24 November 2020, Ruifang Xu , XSBNR-07 ( HKAS 115759 View Materials , holotype); ex-type living cultures KUMCC 21-0086 .
Notes: — In the phylogenetic analyses Heveicola xishuangbannaensis forms a monophyletic branch within Wiesneriomycetaceae with strong statistical support ( Fig. 1 View FIGURE 1 ). Heveicola xishuangbannaensis is similar to Speiropsis and Phalangispora in the shape and colour of the conidia, but it can differ in having a dark brown band at the septa and branches. No sexual morph has been reported so far in Wiesneriomycetaceae .
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.
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