Asterinales » Asterinaceae » Lembosia

Lembosia xyliae

Lembosia xyliae X.Y. Zeng, T.C. Wen & K.D. Hyde, in Ariyawansa et al., Fungal Diversity: 10.1007/s13225-015-0346-5, [24] (2015)

Index Fungorum number: IF551345         Facesoffungi number: FoF00933



Sexual morph: Thyriothecia dense, elongate, with stellate dehiscence, 350–500 × 200–300 μm (x̄ = 400 × 250 μm, n = 20). Pseudoparaphyses filiform, dense, numerous, septate, hyaline. Asci 8-spored, bitunicate, ellipsoid to subglobose, sessile, 40–60 × 30–50 μm (x̄ = 50 × 40 μm, n = 30). Ascospores obovoid to ellipsoid, 2-celled, slightly constricted at the septum, lower cell slightly longer and narrower, hyaline with two oil drops in each cell when immature, becoming brown at maturity, 25–32 × 12–17 μm (x̄ = 29 × 14 μm, n = 30). Asexual morph: Undetermined.


Material examined: Thailand, Chiang Rai Province, Doi Mae Salong, on leaves of Shorea roxburghii (Dipterocarpaceae), 22 June 2015, XY Zeng (MFLU 16-0068); THAILAND, Amphoe Ko Chang, Yuttha Navi Ko Chang Memorial, on leaves of Shorea roxburghii (Dipterocarpaceae), 27 April 2017, XY Zeng (MFLU 17-1052).


GenBank Accession No: ITS-LSU: MK660012 (MFLU17-1052); LSU: MK660011 (MFLU 16-0068).


Notes: This species was introduced by Ariyawansa et al. (2015) with only a single LSU sequence data. The holotype was found on leaves of Xylia sp., but it seems incorrectly identified. In this study, we sequenced both the host and the fungal species by following Zeng et al. (2018). Results indicate that the species is associated with the host Shorea roxburghii, which is very similar to Xylia species, and two new gene sequences (ITS and SSU) are generated. Lembosia shoreae (R.W. Ryan) B. Song & Hosag., which synonymized from Morenoella shoreae, is the only species reported from Shorea, but the original description is unavailable. Therefore, we would like to report a new host record and update sequence data for this species.


Figure X. Lembosia xyliae (MFLU 16-0068, new host record). a Host leaves. b, c Thyriothecia on leaf surface. d Squash mount of thyriothecium. e Cross section of thyriothecium. f Hyphae with hyphopodia. g–i Young asci. j–m Young ascospores. Scale bars: b–d = 200 μm, e, f = 50 μm, g–m = 20 μm.


Reference: Hyde KD, Tennakoon DS, Jeewon R, Bhat DJ, et al. (2019) Fungal diversity notes 1036–1150: taxonomic and phylogenetic contributions on genera and species of fungal taxa. Fungal Diversity 96(1): 1242.


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"The future of specialist fungi in a changing climate: baseline data for generalist and specialist fungi associated with ants Rhododendron species and Dracaena species"

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"Impact of climate change on fungal diversity and biogeography in the Greater Mekong Sub-region"

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  • Chinese Academy of Sciences,
  • Honghe County 654400, Yunnan, China

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