Cordana
Cordana Preuss, Linnaea 24: 129 (1851)
Diaporthomycetidae, Magnaporthales, Pyriculariaceae, Cordana
Index Fungorum number: IF7777; Facesoffungi number: FoF 01674; 23 morphological species (Species Fungorum 2020), 11 species with sequence data.
Saprobic or pathogenic on wood of branches, twigs and leaves of various shrubs and trees, bamboo, grasses and in soil of terrestrial habitats, occasionally in freshwater habitats. Sexual morph: Ascomata perithecial, superficial, solitary or gregarious, globose to ovoid, setose or glabrous, with basal stroma, papillate. Ostiole periphysate. Peridium comprising 3–5 layers of cells of textura prismatica. Paraphyses septate, unbranched. Asci 8-spored, unitunicate, cylindrical, with short pedicel, with or without a J-, apical ring. Ascospores uniseriate, pale brown to brown, ellipsoid to fusiform, sometimes with pores at both ends, 1-septate. Asexual morph: Hyphomycetous. Colonies effuse, dark brown to black. Conidiophores mononematous, macronematous, brown, septate, erect, branched or unbranched. Conidiogenous cells terminal or intercalary, polyblastic, denticulate. Conidia pale brown to brown, obovoid to ellipsoidal, smooth, sometimes with germ pores at the ends, 1-septate or aseptate (adapted from Hughes 1955, Müller & Samuels 1982, Hernández-Restrepo et al. 2014).
Type species: Cordana pauciseptata Preuss, Linnaea 24: 129 (1851)
Notes: 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 (1982) 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. 2004, Réblová & Seifert 2007, Hernández-Restrepo et al. 2014, Zelski et al. 2014, Vu et al. 2019).
Species illustrated in this entry:
Cordana mercadiana Hern.-Restr., J. Mena, Gené & Guarro, Mycologia 106(4): 728 (2014)
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. 2004 – Molecular systematics of the Sordariales: the order and the family Lasiosphaeriaceae redefined. Mycologia 96, 368–387
Müller E, Samuels GJ. 1982 – 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, Seifert KA. 2007 – A new fungal genus, Teracosphaeria, with a phialophora-like anamorph (Sordariomycetes, Ascomycota). Mycological Research 111, 287–298
Réblová M, Winka K. 2000 – Phylogeny of Chaetosphaeria and its anamorphs based on morphological and molecular data. Mycologia 92, 939–954
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
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