Fungalpedia – Note 1904, Massariovalsa

 

Massariovalsa Sacc.

Citation when using this data: Hyde KD et al. 2020 – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Diaporthales, Diaporthomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Massariovalsa is a saprobic genus found on woody bark. Massariovalsa was a subgenus of Melanconis (Wehmeyer 1941). Petrak (1952b) and Muller & von Arx (1962) separated the genus using the pycnidial asexual morph and the mucous epispore on the ascospores. Massariovalsa sudans was considered to be the sexual morph of Melanconiopsis inquinans (type species of Melanconiopsis) (Wehmeyer 1939, Rossman et al. 2015). Massariovalsa has integrated, enteroblastic, phialidic conidiogenous cells. The stromatic disc is not present in Massariovalsa but the conidiogenesis is similar to Melanconiella. Sequence data are not available for Massariovalsa in GenBank. Therefore, Senanayake et al. (2018) accommodated Massariovalsa in Melanconiellaceae based on similar morphology.

Type species: Massariovalsa sudans (Berk. & M.A. Curtis) Sacc.

Other accepted species: Species Fungorum – search Massariovalsa.

 

References

Müller E, von Arx JA. 1962 – Die Gattungen der didymosporen Pyrenomyceten. Beitrage zur Kryptogamenflora der Schweiz 11, 1–922.

Petrak F. 1952b – Serenomyces n. gen., eine neue Gattung der Ceratostomaceen. Sydowia 6, 296–298.

Rossman AY, Adams GC, Cannon PF, Castlebury LA et al. 2015 – Recommendations of generic names in Diaporthales competing for protection or use. IMA Fungus 6, 145–154.

Senanayake IC, Jeewon R, Chomnunti P, Wanasinghe DN et al. 2018 – Taxonomic circumscription of Diaporthales based on multigene phylogeny and morphology. Fungal Diversity 93, 241– 443.

Wehmeyer LE. 1939 – The genus Massariovalsa. Am J Bot 26, 831–834.

Wehmeyer LE. 1941 –A revision of Melanconis, Pseudovalsa, Prosthecium and Titania. University of Michigan studies. Scientific series 14, 1–161.

 

Entry by

Kevin David Hyde, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P.R. China, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, P.R. China

 

Published online 5 March 2026

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