Fig 10
Polyblastia fuscoargillacea. A. habitus. B. perithecia. C. section of perithecium. D. mature spores in ascus. A-B, D: Sweden, Lappmark, Palice 7666 (vouch. S024, hb. Palice). C: Sweden, Gotland, Tibell 1109 (UPS).
Source publication
Polyblastia s.str. (Verrucariaceae, Chaetothyriomycetidae) of Northern Europe and the adjacent Arctic is revised. The morphology and the history of the exploration of Polyblastia s.str. is described. Twenty-five species are recognized, twelve of them being new. A molecular phylogeny of the genus based on the internal transcribed spacers (ITS) of nu...
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This study examined the abiotic and biotic characteristics of ecosystems that allow expression of a life history called ferox trout, the colloquial name given to brown trout Salmo trutta adopting a piscivorous life history strategy, an apex predator in post-glacial lakes in northern Europe. One hundred and ninety-two lakes in Scotland show evidence...
Citations
... There have been recent revisions of substantial species groups (e.g. Prieto et al. 2010Prieto et al. , 2012Savić & Tibell 2012), but no further attempts to produce a revised phylogeny for the whole family. ...
Twenty-eight species of Verrucariaceae are reported from Nepal. One genus and nine species are described as new: Nesothele gen. nov., sister to Staurothele s. lat., with a crustose to squamulose thallus, hymenial algae and 4–8 colourless muriform ascospores per ascus; Nesothele glebulosa sp. nov., resembling N. rugulosa but with smaller perithecia; Thelidium uvidulum sp. nov., producing a thin thallus with soralia, prominent perithecia, and 1-septate ascospores; Verrucaria antepotens sp. nov., having a well-developed thallus with dark-sided areoles, immersed perithecia, and small ascospores 12.5–16.5 μm long; V. lactea sp. nov., resembling V. praetermissa but with larger ascospores and a strongly deviating ITS sequence; V. parvipeltata sp. nov., with brown, basally constricted areoles on an extensive dark prothallus; V. senta sp. nov., with a brown cracked thallus and prominent naked perithecia; Willeya eminens sp. nov., with prominent perithecia, and differing from W. protrudens in its ITS sequence; W. irrigata sp. nov. with a thallus cracked into dark-sided areoles, and relatively large ascospores 28.5–40 μm long; W. nepalensis sp. nov. with a cracked thallus, immersed perithecia and a distinctive ITS sequence. Three species complexes might contain new taxa, but wider geographical sampling is necessary before delimiting species: Thelidium minutulum , Verrucaria elaeomelaena and V. hydrophila . Five new combinations are made: Willeya honghensis comb. nov. (for Staurothele honghensis ), Nesothele globosa comb. nov. (for Endocarpon globosum ), N . hymenogonia comb. nov. (for Staurothele hymenogonia ), N. rugulosa comb. nov. (for Staurothele rugulosa ) and N. succedens comb. nov. (for Staurothele succedens ). Four species are unidentified.
... It is similar to P. hyperborea Th. Fr., which differs in having a thick involucrellum that extends horizontally from the ostiolum, and larger ascospores (Savić & Tibell, 2012). The species was described from Torne Lappmark in Northern Sweden and is widely distributed in Central and Northern Fennoscandia (Norway, Sweden, Finland), and further known from Iceland, Bjørnøya and Svalbard (Tibell & Tibell, 2017). ...
Four lichen species, Biatora chrysanthoides collected from Kostroma Region, Gyalidea minuta from Nizhnii Novgorod Region and Polyblastia borealis and Thelocarpon saxicola from Murmansk Region, are reported for the first time for Russia. Comments on their habitats, substrates, key anatomical features and world distribution are provided for each species.
... In Poland this species is known only from high altitudes of the Tatra Mountains (Alstrup & Olech 1992). It is worth to note that according Savić & Tibell (2012) P. gothica and P. helvetica are possible synonyms of Merismatium nigritellum (Nyl.) Vouaux and may not belong to the family Verrucariaceae. ...
Atla wheldonii is reported for the first time from Poland. This species was found in a calcareous zone of the Góry
Kaczawskie Mountains (the Sudetes, SW part of the country), growing on soil in the bottom of an abandoned marble
quarry. Brief characteristics and notes on habitat preferences and general distribution of the species are given.
... In Poland this species is known only from high altitudes of the Tatra Mountains (Alstrup & Olech 1992). It is worth to note that according Savić & Tibell (2012) P. gothica and P. helvetica are possible synonyms of Merismatium nigritellum (Nyl.) Vouaux and may not belong to the family Verrucariaceae. ...
Atla wheldonii is reported for the first time from Poland. This species was found in a calcareous zone of the Góry
Kaczawskie Mountains (the Sudetes, SW part of the country), growing on soil in the bottom of an abandoned marble
quarry. Brief characteristics and notes on habitat preferences and general distribution of the species are given.
... Polyblastia A. Massal. has been given a narrower circumscription (Savić et al. 2008;Savić & Tibell 2012) and some groups of Polyblastia (e.g. Santesson et al. 2004) have been included in the recently described genus Atla Savić & Tibell (Savić & Tibell 2008a), in Henrica B. de Lesd. ...
Two new species in the lichen genus Atla, A. alaskana and A. recondita, are described. The ITS rDNA region is used for their molecular characterization. Morphologically, Atla alaskana is characterized by its rather thick and well-developed whitish grey thallus, and the rather large perithecia having a thalline excipulum. The presence of a thalline excipulum renders it similar to Sporodictyon species; however, in A. alaskana a distinct zone around the ostiolum is without a thallus and covered only by a thick white pruina. Atla recondita has a thin olivaceous brown thallus and moderately sized, emerging perithecia. It is not possible to identify this species unequivocally as an Atla species only by morphology, and it might well be mistaken for a Polyblastia. A key to all six Atla species, including the two new species, is provided.
... 0.2-0.3 mm), and medium-sized spores (27-35 × 16 -21 µm) does not match any Polyblastia species treated or described in a recently published revision of Polyblastia from Northern Europe and the adjacent Arctic (Savić & Tibell 2012). Nonetheless, we think the type probably belongs to Polyblastia s. str. ...
Surveys of lichens and lichenicolous fungi have been taking place in the U.S. state of Alaska for more than 160 years, but until now assessing the full extent of their diversity has been hampered by the lack of a comprehensive and synonymized baseline inventory. In this paper we will begin to redress this by resolving outstanding nomenclatural issues and providing voucher data for a forthcoming catalog of Alaskan lichens, specifically: 1) synonymization and/or resolution of status of species previously reported from Alaska, with emphasis on Alaskan types; 2) species new to the Alaska lichen biota; and 3) biogeographically significant new records from within Alaska. We report 91 species new to the flora of Alaska, including 65 lichens, three saprophytic calicioid fungi and 23 lichenicolous fungi. Of these, we report thirteen species, Biatora sphaeroidiza, Biatorella conspurcans, Chaenothecopsis arthoniae, Collemopsidium foveolatum, Dactylospora frigida, Halospora discrepans, Lecanora bryopsora, Opegrapha geographicola, Peltigera lyngei, Petractis clausa, Protoblastenia cyclospora, Thelocarpon impressellum and Usnea cylindrica as new to North America. In addition, Arthonia pruinata and Flavocetraria minuscula are new to Canada and Adelococcus alpes tris new to the United States. We further place the following five names into synonymy: Lecania disceptans (Nyl.) Lynge [= Halecania alpivaga (Th.Fr.) M.Mayrhofer], Lecidea pallidella Nyl. [= Lecania subfuscula (Nyl.) S.Ekman], Lempholemma triptodes (Nyl.) Zahlbr. (= Leciophysma finmarkicum Th.Fr.), Polyblastia obtenta (Nyl.) Lynge [=Sporodictyon terrestre (Th.Fr.) S.Savić & Tibell], and Verrucaria pernigrata Nyl. [= Protothelenella sphinctrinoides (Nyl.) H.Mayrhofer & Poelt]. We propose restoring the long overlooked taxon Polyblastia exalbida (Nyl.) Zahlbr., currently known only from Alaska, to the North American lichen checklist. Finally, we propose the new combination Puttea caesia (Fr.) M.Svensson & T.Sprib. to replace Lecidea symmictella Nyl., which becomes a synonym.
... 0.2-0.3 mm), and medium-sized spores (27-35 × 16 -21 µm) does not match any Polyblastia species treated or described in a recently published revision of Polyblastia from Northern Europe and the adjacent Arctic (Savić & Tibell 2012). Nonetheless, we think the type probably belongs to Polyblastia s. str. ...
Surveys of lichens and lichenicolous fungi have been taking place in the U.S. state of Alaska for more than 160 years, but until now assessing the full extent of their diversity has been hampered by the lack of a comprehensive and synonymized baseline inventory. In this paper we will begin to redress this by resolving outstanding nomenclatural issues and providing voucher data for a forthcoming catalog of Alaskan lichens, specifically: 1) synonymization and/or resolution of status of species previously reported from Alaska, with emphasis on Alaskan types; 2) species new to the Alaska lichen biota; and 3) biogeographically significant new records from within Alaska. We report 91 species new to the flora of Alaska, including 65 lichens, three saprophytic calicioid fungi and 23 lichenicolous fungi. Of these, we report thirteen species, Biatora sphaeroidiza, Biatorella conspurcans, Chaenothecopsis arthoniae, Collemopsidium foveolatum, Dactylospora frigida, Halospora discrepans, Lecanora bryopsora, Opegrapha geographicola, Peltigera lyngei, Petractis clausa, Protoblastenia cyclospora, Thelocarpon impressellum and Usnea cylindrica as new to North America. In addition, Arthonia pruinata and Flavocetraria minuscula are new to Canada and Adelococcus alpestris new to the United States. We further place the following five names into synonymy: Lecania disceptans (Nyl.) Lynge [= Halecania alpivaga (Th.Fr.) M.Mayrhofer], Lecidea pallidella Nyl. [= Lecania subfuscula (Nyl.) S.Ekman], Lempholemma triptodes (Nyl.) Zahlbr. (= Leciophysma finmarkicum Th.Fr.), Polyblastia obtenta (Nyl.) Lynge [= Sporodictyon terrestre (Th.Fr.) S.Savić & Tibell], and Verrucaria pernigrata Nyl. [= Protothelenella sphinctrinoides (Nyl.) H.Mayrhofer & Poelt]. We propose restoring the long overlooked taxon Polyblastia exalbida (Nyl.) Zahlbr., currently known only from Alaska, to the North American lichen checklist. Finally, we propose the new combination Puttea caesia (Fr.) M.Svensson & T.Sprib. to replace Lecidea symmictella Nyl., which becomes a synonym.
The taxonomy of lichen species morphologically similar to Thelidium auruntii and T. incavatum in Finland is being revised. Based on ITS and morphology, ten species occur in Finland. All species are restricted to calcareous rocks. The Thelidium auruntii morphocomplex includes six species: T. auruntii , T. huuskonenii sp. nov. , T. pseudoauruntii sp. nov. , T. sallaense sp. nov, T. toskalharjiense sp. nov. and T. sp. 1. In the ITS phylogeny, T. auruntii , T. pseudoauruntii and T. sallaense group together, but the remaining species are placed outside of this clade. All the species have northern distribution in Finland, occurring on fells in NW Finland and/or in gorges in the Oulanka area in NE Finland. The Thelidium incavatum morphocomplex includes four species: T. declivum sp. nov. , T. incavatum , T. mendax sp. nov. and T. sp. 2. This morphogroup is not resolved as monophyletic in the ITS phylogeny, with only T. declivum and T. mendax forming a strongly supported group. Thelidium incavatum is rather common in SW Finland, with one separate locality in eastern Finland. Thelidium declivum occurs only in the Oulanka area. Thelidium mendax occurs in the Oulanka area, but one locality is known from eastern central Finland. Thelidium sp. 2 is known from one locality in SW Lapland.
A presumably endemic species of Saussurea (Asteraceae) from the Se La in NW Arunachal Pradesh (India) is described as new to science, based on a herbarium specimen from 1938, and recent colour photographs. The morphology, ecology and conservation status of the new taxon are discussed, and the differences to the only similar species, S. stella, are highlighted.
