Acrospermales » Acrospermaceae


Gonatophragmium Deighton, in Cejp & Deighton, Mycol. Pap. 117: 13 (1969)

 Index Fungorum number: IF 8376; Facesoffungi number: FoF 06486, 17 morphological species (Species Fungorum 2021), 1 species with molecular data.

Parasitic on leaf. Sexual morph: Unknown. Asexual morph: Primary mycelium internal. Secondary mycelium external, arising from hyphae of the primary mycelium which emerge through the stomata. Conidiophores arising mostly as branches of the secondary mycelium, well developed, pale brown, thin-walled, smooth, septate, branched, bearing conidia on short papilliform projections or pegs which are at first solitary but later usually densely aggregated over swellings, these swellings or nodules often proliferating as short lateral branchlets. Conidia pale brown, thin-walled, more or less smooth, cylindric-clavate, 1-3 or pluriseptate, not catenulate (Adapted from Cejp and Deighton 1969).


Type species: Gonatophragmium mori (Sawada) Deighton


Notes: Gonatophragmium was introduced by Cejp and Deighton (2013) with G. mori as type species. Gonatophragmium is characterized by pigmented, branched conidiophores formed as erect to decumbent threads with terminal and intercalary conidiogenous cells, which are often swollen around fertile portions with typically several visible conidiogenous loci. Currently, Gonatophragmium is taxonomically placed in Acrospermaceae (Hyde et al. 2013; Hongsanan et al. 2020).


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