Fungalpedia – Note 2307, Didymocrea

 

Didymocrea. Kowalski.

Citation when using this data: Hongsanan S et al. 2020 – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank

Classification: Didymosphaeriaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

 

Notes – Didymocrea was introduced by Kowalski (1965) to accommodate D. sadasivanii which was previously known as Didymosphaeria sadasivanii. The sexual morph of Didymocrea is characterized in having brown to black ascomata, filiform pseudoparaphyses, uni-tunicate asci and two-celled brown ascospores (Kowalski 1965, Ariyawansa et al. 2014d). However, due to their unitunicate asci, Kowalski (1965) assigned this in Hypocreales. Subsequently, researchers concluded that it should be a true pleosporalean fungus with functionally unitunicate asci, and retained it in Pleosporales (Luttrell 1975, Aptroot 1995, Rossman et al. 1999, Kruys et al. 2006, Schoch et al. 2009a, Zhang et al. 2012b). According to the multi-gene phylogeny Ariyawansa et al. (2014d) accepted this genus in Didymosphaeriaceae. The asexual morph of Didymocrea was introduced by Jayasiri et al. (2019) and the morphology bears similarity to species in Canalisporium (Sordariomycetes). Only two species have been recorded in this genus, Didymocrea leucaenae, D. sadasivanii (Species Fungorum 2020).

 

Type species: Didymocrea sadasivanii (T.K.R. Reddy) Kowalski, Mycologia 57(3): 405 (1965).

≡ Didymosphaeria sadasivanii T.K.R. Reddy, Mycologia 53(5): 471 (1962) [1961].

Other accepted species: Species Fungorum – search Didymocrea.

 

References

Aptroot A. 1995 – Redisposition of some species excluded from Didymosphaeria (Ascomycotina). Nova Hedwig 60, 325–379.

Ariyawansa HA, Tanaka K, Thambugala KM, Phookamsak R et al. 2014d – A molecular phylogenetic reappraisal of the Didymosphaeriaceae (= Montagnulaceae). Fungal Diversity 68, 69–104.

Jayasiri SC, Hyde KD, Jones EBG, McKenzie EHC et al. 2019 – Diversity, morphology and molecular phylogeny of Dothideomycetes on decaying wild seed pods and fruits. Mycosphere 10, 1–186.

Kowalski DT. 1965 – The development and cytology of Didymocrea sadasavanii. Mycologia. 57, 404–416.

Kruys Å, Eriksson OE, Wedin M. 2006 – Phylogenetic relationships of coprophilous Pleosporales (Dothideomycetes, Ascomycota), and the classification of some bitunicate taxa of unknown position. Mycological Research 110, 527–536.

Luttrell ES. 1975 – Centrum development in Didymosphaeria sadasivanii (Pleosporales). American Journal of Botany 62, 186–190.

Rossman AY, Samuels GJ, Rogerson CT, Lowen R. 1999 – Genera of Bionectriaceae, Hypocreaceae and Nectriaceae (Hypocreales, Ascomycetes). Studies in Mycology 41, 1–248.

Schoch CL, Crous PW, Groenewald JZ, Boehm EWA et al. 2009a – A class-wide phylogenetic assessment of Dothideomycetes. Studies in Mycology 64, 1–15.

Species Fungorum. 2020) http://www.speciesfungorum.org/Index.htm

Zhang Y, Crous PW, Schoch CL, Hyde KD. 2012b – Pleosporales. Fungal Diversity 53, 1–221.

 

Entry by

Sinang Hongsanan, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Science and Oceanography, Shenzhen University, Shenzhen 518060, People’s Republic of China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50002, Thailand

 

Published online 9 April 2026

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