Capnodiales » Teratosphaeriaceae


Hortaea Nishim. & Miyaji, Jap. J. med. Mycol. 26(2): 145 (1984).

Index Fungorum number: IF 11101; Facesoffungi number: FoF 07012, 2 morphological species (Species Fungorum 2022), 2 species with molecular.

Mycelium cylindrical to toruloid, pale to dark brown. Sexual morph: Unknown. Asexual morph: Conidiophores semi-macronematous to micronematous, branched or unbranched, septate, pale brown to black. Conidiogenous cells (sympodulae) incorporated or terminal, cylindrical or ampullaceous, pale brown to black; rachises (fertile parts) of sympodulae truncate, cylindrical or obclavate with bud scars in spiral arrangement; bud scars round, lunate, falcate or scaly; denticles absent. Conidiogenous cells (annellides) rarely produced. Conidia solitary, acropleurogenous or acrogenous, one- to two celled, ellipsoidal to cylindrical, pale brown to black, sometimes aggregated in clusters. Yeast-like cells one- to two-celled, ellipsoidal to cylindrical, pale brown to black, with bud scars sympodially arranged or with annellations, producing conidia by unipolar or bipolar budding.

Type species: Hortaea werneckii (Horta) Nishim. & Miyaji

Notes: Hortaea is characterised by semi-macronematous to micronematous, septate, pale brown to black conidiophores, cylindrical or ampullaceous, pale brown to black conidiogenous cells, solitary, acropleurogenous or acrogenous, 1–2-celled, ellipsoidal to cylindrical conidia. Hortaea werneckii was previously known as Cladosporium werneckii but was not congeneric with the type species of Cladosporium, C. herbarum. Hortaea is morphologically and phylogenetically a distinct genus in Teratosphaeriaceae. Molecular markers available for Hortaea are ITS, LSU, SSU and TEF-1.



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