Fungalpedia – Note 1236, Cordana

 

Cordana Preuss

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

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Cordanaceae, Cordanales, Diaporthomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Cordana is a dematiaceous hyphomycetous genus introduced by Preuss (1851) together with three species, C. polyseptata, C. pauciseptata and C. pedunculata, without designation of a type species (Hernández-Restrepo et al. 2014). Saccardo (1877) and Hughes (1955) attempted to designate C. pauciseptata as the lectotype, however in both occasions the species was subjected to reclassification and the type material was reported as lost (Hernández-Restrepo et al. 2014). Thus, Hernández-Restrepo et al. (2014) designated an epitype for this genus, produced a phylogram based on ITS sequences and provided a dichotomous key to the species. Based on cultural studies, Müller & Samuels (1982b) suggested Porosphaerella cordanophora was the sexual morph of Cordana pauciseptata, and this was confirmed phylogenetically by Hernández-Restrepo et al. (2014). ITS sequence data for eight species and LSU for some are available in GenBank (Réblová & Winka 2000, Huhndorf et al. 2004b, Réblová & Seifert 2007, Hernández-Restrepo et al. 2014, Zelski et al. 2014, Vu et al. 2019).

Type species: Cordana pauciseptata Preuss.

Other accepted species: Species Fungorum – search Cordana.

 

image

 

Figure 1 – Cordana mercadiana (FMR 11828, a-c), drawings based on illustrations given in Hernández-Restrepo et al. (2014). a, b Arrangement of conidia on conidiophore and denticulate conidiogenous cells giving rise to conidia (based on SEM microphotographs provided in Hernández-Restrepo et al. 2014). c Conidia. Sexual morph Porosphaerella cordanaphora, and its Cordana asexual morph (d-j, redrawn from Müller & Samuels 1982b). d Asci with ascospores. e Vertical section of ascoma. f J-, apical ring of asci with a mature ascospore. g Ascospores. h Conidiophore with conidia clustered at apex. i Apical meristem protruding in conidiophore and developing conidia. j Conidia. Scale bars: a = 50 µm, b-j = 10 µm.

 

References

Hernández-Restrepo M, Gené J, Mena-Portales J, Cano J et al. 2014 – New species of Cordana and epitypification of the genus. Mycologia 106, 723–734.

Hughes SJ. 1955 – Microfungi. I. Cordana, Brachysporium, Phragmocephala. Canadian Journal of Botany 33, 259–268.

Huhndorf SM, Miller AN, Fernandez FA. 2004b – Molecular systematics of the Sordariales: the order and the family Lasiosphaeriaceae redefined. Mycologia 96, 368–387.

Müller E, Samuels GJ. 1982b – Anamorphs of pyrenomycetous Ascomycetes II. Porosphaerella gen. nov. and its Cordana anamorph. Sydowia 35, 150–154.

Preuss CGT. 1851 – Übersicht untersuchter Pilze, besonders aus der Umgegend von Hoyerswerda. Linnaea 24, 99–153.

Réblová M, Winka K. 2000 – Phylogeny of Chaetosphaeria and its anamorphs based on morphological and molecular data. Mycologia 92, 939–954.

Réblová M, Seifert KA. 2007 – A new fungal genus, Teracosphaeria, with a phialophora-like anamorph (Sordariomycetes, Ascomycota). Mycological Research 111, 287–298.

Saccardo PA. 1877 – Fungi Italici autographice delineati a Prof. P.A. Saccardo. Michelia 1, 73– 100.

Vu D, Groenewald M, De Vries M, Gehrmann T et al. 2019 – Large-scale generation and analysis of filamentous fungal DNA barcodes boosts coverage for kingdom fungi and reveals thresholds for fungal species and higher taxon delimitation. Studies in Mycology 92, 135– 154.

Zelski SE, Balto JA, Do C, Raja HA et al. 2014 – Phylogeny and morphology of dematiaceous freshwater microfungi from Perú. IMA Fungus 5, 425–438.

 

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

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