Laboulbeniomycetes (Fungi, Ascomycota) of Denmark Author Santamaria, Sergi Unitat de Botànica, Departament de Biologia Animal, de Biologia Vegetal i d’Ecologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès (Barcelona), Spain. sergi.santamaria@uab.cat Author Pedersen, Jan Natural History Museum of Denmark (Zoological Museum), University of Copenhagen, Universitetsparken 15, 2100 København Ø, Denmark. japedersen@snm.ku.dk text European Journal of Taxonomy 2021 2021-11-26 781 1 425 http://dx.doi.org/10.5852/ejt.2021.781.1583 journal article 10.5852/ejt.2021.781.1583 2118-9773 5828924 Trenomyces histophthorus Chatton & F.Picard MB#149483 Fig. 74 Comptes Rendus Hebdomadaires des Séances de l’Académie des Sciences 146: 201 ( Chatton & Picard 1908 , as T. histophtorus ). – Type : [In ??] “La Laboulbéniacée que nous avons trouvée sur Menopon pallidum Nitzsch et sur Goniocotes abdominalis P., Mallophages recueillis sur les Poules domestiques à Banyuls-sur-Mer”. [ France ] Diagnostic features Male thalli yellowish, including many antheridia per thallus; antheridial neck three times shorter than the venter. Female thalli yellowish, including many perithecia per thallus. Perithecia straight, clavate to cylindrical, wrinkled, with small indistinct lips. [Detailed descriptions: Thaxter 1912b , 1926 ; Bechet & Bechet 1960a , 1960b ; Majewski 1994b ] Distribution and hosts Occurs on Mallophaga (Phthiraptera) belonging to many genera of Menoponidae and Philopteridae like Menopon Nitzsch, 1818 , Goniocotes Burmeister, 1838 , Menacanthus Neumann, 1912 , etc., recorded on several groups of birds ( Tavares 1985 ). Reported from Europe ( France , Poland , Germany , Romania , Czech Republic , Italy , Hungary ), America ( USA , Bahamas , Argentina , Guatemala , Jamaica ), and Japan ( Majewski 2008 ). A total revision of the records list would require a huge effort. Collections examined from Denmark On Amyrsidea perdicis (Denny, 1842) (Phthiraptera, Menoponidae ), on the grey partridge, Perdix perdix (Linnaeus, 1758) DENMARK – Vestjylland (WJ) • Esbjerg ; 55°28.466′ N , 8°30.071′ E ; MG64; 13 Apr. 1937 ; H. Madsen 1584 ; C. Overgaard det.; ZMUC C-F-124345 . On Menopon gallinae (Linnaeus, 1758) (Phthiraptera, Menoponidae ), on the domestic chicken, Gallus gallus (Linnaeus, 1758) DENMARK – Østjylland (EJ) • Viborg ; 56°27.217′ N , 9°23.650′ E ; NH25; 21 Jul. 1889 ; C. A. Gad 1580 ; C. Overgaard det.; ZMUC C-F-124341 . Fig. 74. Trenomyces histophthorus Chatton & F.Picard. A . Mature male and female thalli. B . One or more male thalli. Scale bars: 50 µm. Photographs from slides ZMUC C-F-124344 (A), ZMUC C-F-124345 (B). On Menopon pallens Clay, 1949 (Phthiraptera, Menoponidae ), on the grey partridge, Perdix perdix (Linnaeus, 1758) DENMARK – Fyn (F) • Bøjden ; 55°6.142′ N , 10°6.564′ E ; NG70; 26 Oct. 1937 ; H. Madsen 1582 ; C. Overgaard det.; ZMUC C-F-124343 • Broholm syd for Gudme ; 55°8.195′ N , 10°43.782′ E ; PG11; 6 Aug. 1937 ; H. Madsen 1581 ; C. Overgaard det.; ZMUC C-F-124342 . – Vestjylland (WJ) • Esbjerg ; 55°28.466′ N , 8°30.071′ E ; MG64; 27 Apr. 1937 ; H. Madsen 1583 ; C. Overgaard det.; ZMUC C-F-124344 . Remarks First record from Denmark . The presence of this fungus in Denmark is not surprising for such a widespread species. The collections are very old, and the fungi are in imperfect condition probably due to the unsuitable preservation fluid; nevertheless the species is perfectly identifiable.