Fungi Xylariales Sporocadaceae ZhangZhaoxueLiuRongyuLiuShubinMuTaichangZhangXiuguoXiaJiwenMorphological and phylogenetic analyses reveal two new species of Sporocadaceae from Hainan, ChinaMycoKeys140420228817119210.3897/mycokeys.88.82229 6B8AB555-F733-5E02-8311-780850EB95F6 Neopestalotiopsis piceana S.S.N. Maharachch., K.D. Hyde & P.W. Crous, Studies in Mycology 79:146. (2014)Fig. 4Description.

Leaf spots irregular, pale brown in centre, brown to tan at margin. Asexual morph on PDA: Conidiomata solitary, globose to clavate, semi-immersed, brown to black; exuding globose, dark brown to black conidial masses. Conidiophores reduced to conidiogenous cells. Conidiogenous cells discrete, ampulliform to lageniform, hyaline, smooth and thin walled, simple, 4.0–12.0 × 2.0–10.0 μm, apex 2.0–5.0 μm diam. Conidia ellipsoid to clavate, straight to slightly curved, 4-septate, 19.5–26.5 × 5.5–7.0 μm, mean ± SD = 22.7 ± 0.8 × 6.1 ± 0.4 μm; somewhat constricted at septa; basal cell obconic with truncate base, rugose and thin-walled, 2.7–5.0 μm long; three median cells 12.0–16.0 μm long, mean ± SD = 14.7 ± 0.9 μm, doliiform, verruculose, versicoloured, septa darker than the rest of the cell, second cell from base pale brown, 4.0–5.7 μm long; third cell dark brown, 3.5–5.2 μm long; fourth cell brown, 3.8–5.8 μm long; apical cell obconic, hyaline, thin and smooth-walled, 2.5–5.2 μm long; with 1–3 tubular apical appendages, arising from the apical crest, flexuous, unbranched, 21.0–32.0 μm long, mean ± SD = 24.8 ± 3.5 μm; basal appendage single, tubular, unbranched, centric, 2.7–6.5 μm long.

10.3897/mycokeys.88.82229.figure4B6B981EB-FEAD-5ED0-B27A-4DD91365FEA9

Neopestalotiopsispiceana (SAUCC210112) a diseased leaf of Ficusmicrocarpab surface of colony after 7 days on PDAc reverse of colony after 7 days on PDAd conidiomata e–g conidiogenous cells with conidia h–j conidia. Scale bars: 10 μm (e–j).

https://binary.pensoft.net/fig/672536
Culture characteristics.

Colonies on PDA incubated at 25 °C in the dark with an average radial growth rate of 9.0–14.0 mm/day and occupying an entire 90 mm petri dish in 7 d, with edge undulate, whitish, aerial mycelium on surface, fruiting bodies black, concentric; reverse of culture yellow to pale brown.

Specimen examined.

China, Hainan Province: Five Fingers Group Scenic Area, 20 May 2021, Z.X. Zhang. On diseased leaves of Ficusmicrocarpa, HSAUP210112, living culture SAUCC210112; on diseased leaves of Ficusmicrocarpa, HSAUP210113, living culture SAUCC210113.

Notes.

In the present study, two strains (SAUCC210112 and SAUCC210113) from symptomatic leaves of Ficusmicrocarpa were clustered with Neopestalotiopsispiceana clade (Maharachch. et al. 2014) based on phylogeny (Fig. 1). Morphologically, our strains were the same as N.piceana, which was originally described with an asexual morph on wood of Picea sp., Cocosnucifera and fruit of Mangiferaindica. The sexual morph of N.piceana was undetermined yet. Neopestalotiopsispiceana was a new record for China and first reported from Ficusmacrocarpa (Moraceae).

10.3897/mycokeys.88.82229.figure17A2121A4-7F71-5028-9BAA-657DBA629343

Phylogram of Sporocadaceae based on combined ITS, tub2 and tef1 sequences. The BI and ML bootstrap support values above 0.90 and 70% are shown at the first and second position, respectively. The tree is rooted to Bartaliniarobillardoides (CBS 122705), ex-type or ex-epitype cultures are indicated in bold face. Strains from the current study are in red. Some branches were shortened according to the indicated mulipliers.

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MaharachchikumburaSSNHydeKDGroenewaldJZXuJCrousPW (2014) Pestalotiopsis revisited.Studies in Mycology79(1): 121186. https://doi.org/10.1016/j.simyco.2014.09.005