Fungalpedia – Note 1217, Polynema

 

Polynema. Lév.

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

Index Fungorum, Facesoffungi, MycoBank, GenBank

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

Notes – The coelomycetes genus Polynema was introduced by Léveillé (1846). The genus was redescribed by Sutton (1968) and accepted Neobarclaya as a synonym of Polynema. Nag Raj (1978) identified Neobarclaya is distinct from Polynema and segregated it from Polynema. Crous et al. (2018d) confirmed the placement of Polynema in Chaetosphaeriaceae based on phylogenetic analysis of ITS sequence data. Members of Polynema are mainly saprobes associated with plant leaves, culms and dead wood (Nag Raj 1993, Crous et al. 2018d). The genus is characterized by acervuloid, cupulate, setose conidiomata, hyaline conidiophores, discrete or integrated, cylindrical to clavate, hyaline conidiogenous cells and fusoid to subcylindrical, aseptate or 3 septate, mostly hyaline conidia with attenuated or filiform appendages at each end (Nag Raj 1993, Crous et al. 2018d). 

Type species: Polynema ornatum (De Not.) Lév. [as ‘ornata’], Annls Sci. Nat., Bot., sér. 3 5: 274 (1846).

Other accepted species: Species Fungorum – search Polynema.

 

References

Crous PW, Wingfield MJ, Burgess TI, Hardy GSJ et al. 2018d – Fungal Planet description sheets: 716–784. Persoonia: Molecular Phylogeny and Evolution of Fungi 40, 240–393.

Léveillé JH. 1846 – Descriptions des champignons de l’herbier du Muséum de Paris. Annales des Sciences Naturelles Botanique 5, 249–305.

Nag Raj TR. 1978 – Genera coelomycetum. XIV. Allelochaeta, Basilocula, Ceuthosira, Microgloeum, Neobarclaya, Polynema, Pycnidiochaeta, and Xenodomus. Canadian Journal of Botany 56, 686–707.

Nag Raj TR. 1993 – Coelomycetous anamorphs with appendage bearing conidia. Mycologue publications, Waterloo 1–1101.

Sutton BC. 1968 – Polynema, an earlier name for Neobarclaya. Mycologia 60, 201–213.

 

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 28 February 2020

Back to Glossary Index Page