Ferdinand Theissen

German botanist (1877-1919).

Ferdinand Theissen (27 July 1877 in Krefeld – 5 September 1919) was a German-Austrian Jesuit priest and mycologist. He studied theology at the seminary in Feldkirch, then from 1902 to 1908 was stationed in São Leopoldo, Brazil. Following his return to Europe he continued his studies in Valkenburg and Innsbruck, and in 1914 returned to Feldkirch as a schoolteacher. He died in September 1919 as a result of a climbing accident during a collection excursion in the Vorarlberg Alps. He was the author or co-author of numerous mycological taxa; with Hans Sydow he co-described the families Botryosphaer

Abbreviations: Theiss.
Occupations: mycologist, botanist, Catholic theologian
Citizenships: Germany
Languages: German
Dates: 1877-07-27T00:00:00Z – 1919-09-05T00:00:00Z
Birth place: Krefeld
Direct attributions: 1 plant, 526 fungi
Authorship mentions: 1 plant, 567 fungi

526 fungi attributed, 41 fungi contributed to567 fungi:

Phyllachoraceae Theiss. & P. Syd. 1915
fungi family in the order phyllachorales
Phyllachoraceae is a family of sac fungi.
Capnodiaceae (Sacc.) Höhn. ex Theiss. 1916
fungi family in the order capnodiales
The Capnodiaceae are a family of fungi in the Ascomycota, class Dothideomycetes. Species in the family have a widespread distribution, and are especially prevalent in tropical and subtropical areas, as well as temperate rainforests.
Polystomellaceae Theiss. & Syd. 1915
fungi family in the class dothideomycetes
The Polystomellaceae are a family of fungi with an uncertain taxonomic placement in the class Dothideomycetes. GBIF lists the following accepted genera; Coscinopeltis (1) Dermatodothella Viégas, 1944 (1) Dothidella Speg., 1880 (36) Dothithyriella F.von Höhnel, 1918 (1) Marchalia P.A.Saccardo, 1889 (1) Munkiella Spegazzini, 1885 (1) Parastigmatea Doidge, 1921 (7) Pluriporus F.Stevens & R.W.Ryan (1) Polystomella (6) Note: Figures in brackets = how many species per genus
Dothioraceae Theiss. & P. Syd. 1918
fungi family in the order dothideales
The Dothioraceae are a family of fungi in the order Dothideales. Species in this family have a widespread distribution, and are biotrophic or necrotrophic, usually associated with woody plants.
Echidnodes Theiss. & Syd. 1918
fungi genus in the asterinaceae family
Echidnodes is a genus of fungi in the Asterinaceae family. The relationship of this taxon to other taxa within the class is unknown (incertae sedis), and it has not yet been placed with certainty into any order.
Auerswaldiella Theiss. & Syd. 1914
fungi genus in the botryosphaeriaceae family
Auerswaldiella is a genus of fungi in the family Botryosphaeriaceae. According to the Dictionary of the Fungi, there are four species, widespread in tropical regions.
Uleodothis Theiss. & Syd. 1915
fungi genus in the venturiaceae family
Uleodothis is a genus of fungi in the family Venturiaceae. The genus was circumscribed by Ferdinand Theissen and Hans Sydow in Ann. Mycol. vol.13 on page 305 in 1915. The genus name of Uleodothis is in honour of Ernst Heinrich Georg Ule (1854–1915), who was a German botanist and plant collector.
Trichothyriopsis Theiss. 1914
fungi genus in the trichothyriaceae family
Trichothyriopsis is a genus of fungi in the family Trichothyriaceae.
Thyriopsis Theiss. & Syd. 1915
fungi genus in the asterinaceae family
Thyriopsis is a genus of fungi in the Asterinaceae family. The relationship of this taxon to other taxa within the class is unknown (incertae sedis), and it has not yet been placed with certainty into any order.
Lembosina Theiss. 1913
fungi genus in the lembosinaceae family
Lembosina is a genus of fungi in the Asterinaceae family. The relationship of this taxon to other taxa within the class is unknown (incertae sedis), and it has not yet been placed with certainty into any order.
Echidnodella Theiss. & Syd. 1918
fungi genus in the asterinaceae family
Echidnodella is a genus of fungi in the Asterinaceae family. The relationship of this taxon to other taxa within the class is unknown (incertae sedis), and it has not yet been placed with certainty into any order.
Crotone Theiss. & Syd. 1915
fungi genus in the venturiaceae family
Crotone is a genus of fungi in the family Venturiaceae.
Asterinella Theiss. 1912
fungi genus in the microthyriaceae family
Asterinella is a genus of fungi in the Microthyriaceae family. It is commonly found on decaying leaves or dead plants.
Amazonia Theiss. 1913
fungi genus in the meliolaceae family
Amazonia is a genus of fungi in the family Meliolaceae.
Adelococcus Theiss. & Syd. 1918
fungi genus in the adelococcaceae family
Adelococcus is a genus of fungi in the family Adelococcaceae.
Trichopeltina Theiss. 1914
fungi genus in the trichopeltinaceae family
Trichopeltina is a genus of fungi in the Trichopeltinaceae family; according to the 2007 Outline of Ascomycota, the placement in this family is uncertain.
Trichodothis Theiss. & Syd. 1914
fungi genus in the venturiaceae family
Trichodothis is a genus of fungi in the family Venturiaceae.
Telimena rhoina (Sumac Silvering) (Ellis & Everh.) Theiss. & Syd. 1915
fungi species in the telimenaceae family
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Syncarpella Theiss. & Syd. 1915
fungi genus in the cucurbitariaceae family
Syncarpella is a genus of fungi in the family Cucurbitariaceae.
Symphaster Theiss. & Syd. 1915
fungi genus in the asterinaceae family
Symphaster is a genus of fungi in the Asterinaceae family. The relationship of this taxon to other taxa within the class is unknown (incertae sedis), and it has not yet been placed with certainty into any order.
Stalagmites tumefaciens (Stalagmites) (Syd. & P. Syd.) Theiss. & Syd. 1914
fungi species in the nectriaceae family
Stalagmites is a genus of ascomycete fungi in the family Nectriaceae. It is a monotypic genus containing the sole species Stalagmites tumefaciens.
Rosenscheldiella Theiss. & Syd. 1915
fungi genus in the venturiaceae family
Rosenscheldiella is a genus of fungi in the family Mycosphaerellaceae.
Pseudothis Theiss. & Syd. 1914
fungi genus
Pseudothis is a genus of fungi in the class Dothideomycetes. The relationship of this taxon to other taxa within the class is unknown (incertae sedis). Also, the placement of this genus within the Dothideomycetes is uncertain.
Pseudoparodia pseudopeziza (Pseudoparodia) (Pat.) Theiss. & Syd. 1917
fungi species in the patellariaceae family
Pseudoparodia is a genus of fungi in the family Venturiaceae. This is a monotypic genus, containing the single species Pseudoparodia pseudopeziza. The genus was first described in 1917 by Ferdinand Theissen and Hans Sydow, with the type species, Pseudoparodia pseudopeziza being nominated by the same authors in 1947.
Pseudolembosia Theiss. 1913
fungi genus in the parmulariaceae family
Pseudolembosia is a genus of fungi in the family Parmulariaceae.
Placoasterella Sacc. ex Theiss. & Syd. 1915
fungi genus in the asterinaceae family
Placoasterella is a genus of fungi in the Asterinaceae family. The relationship of this taxon to other taxa within the class is unknown (incertae sedis), and it has not yet been placed with certainty into any order.
Phyllachora leveilleana Theiss. & Syd. 1917
fungi species in the phyllachoraceae family
Phyllachora leveilleana is a species of fungus, a member of the division Ascomycota, and was first described by Ferdinand Theissen and Hans Sydow in 1917. Phyllachora leveilleana belongs to the genus Phyllachora, and family Phyllachoraceae.
Phaeochorella parinarii (Henn.) Theiss. & Syd. 1915
fungi species in the phaeochorellaceae family
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Phaeochorella clypeata (G. Winter) Theiss. & Syd. 1915
fungi species in the phaeochorellaceae family
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Phaeochorella Theiss. & Syd. 1915
fungi genus in the phaeochorellaceae family
Phaeochorella is a genus of fungi It was formerly placed in the family Phyllachoraceae, before in 2020 placed in the monotypic family of Phaeochorellaceae.
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