Fungalpedia – Note 2381, Moelleriella

 

Moelleriella. Bres.

Citation when using this data: Yuan HS et al. 2020 – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Clavicipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

 

Notes: The genus Moelleriella was established by Bresadola (1896), with M. phyllogena as the type species. Chaverri et al. (2008) differentiated Moelleriella from both Samuelsia and Hypocrella based on its disarticulated ascospores in the asci while the latter two genera have filiform or long-fusiform ascospores even after discharge. Species of Moelleriella produce an Aschersonia-like asexual morph that is characterized with acervuli or pycnidia on a brightly colored stroma, filiform multi-septate ascospores disarticulated at the septa within the ascus and fusoid conidia (Mongkolsamrit et al. 2015). In China, there are currently only three species accepted in Moelleriella (Qiu et al. 2009; Li et al. 2016).

 

Type species: Moelleriella Bres., Boll. Soc. bot. ital., 1897: 292 (1897).

Other accepted species: Species Fungorum – search Moelleriella.

 

image

 

Figure 1 – Moelleriella gracilispora (CGMCC3.18989, holotype). a Habitat. b Stroma on the underside of leaves. c Flank of stroma. d, e Frontage of stroma. f Colonies on PDA media. g, h Longitudinal section of stroma. i Section of pycnidium. j Conidiogenous cells. k Conidia. Scale bars: b = 1 cm, c–e = 0.2 mm, f = 0.5 cm, g, h = 100 µm, i = 20 µm, j, k = 10 µm

 

References

Bresadola J (1896) Fungi Tridentini. 195 plates. 1881–1900. Contains figures of Hydnaceae. Fungi Brasilienses. Hedwigia 35:276–302

Chaverri P, Liu M, Hodge KT (2008) A monograph of the entomopathogenic genera Hypocrella, Moelleriella and Samuelsia gen. nov. (Ascomycota, Hypocreales, Clavicipitaceae) and their aschersonia-like anamorphs in the Neotropics. Stud Mycol 60:1–66

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Qiu JZ, Chen Y, Wang YY, Guan X (2009) The finding of Moelleriella ochracea(Ascomycota, Clavicipitaceae) in China. Mycosystema 28:148–150

 

Entry by

Hai-Sheng Yuan, CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, People’s Republic of China, University of the Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China

 

Published online 30 April 2026