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Abstract

Lecanora peltastictoides is transferred to Aspicilia. Thelenella americana is treated as Melanophloea americana and T. montana as M. montana. Sarcogyne athroocarpa is treated as a synonym of Acarospora badiofusca and a lectotype is designated. Pleopsidium stenosporum is treated as a synonym of P. flavum. s.n., Lichenes Boreali-Americani 227 (FH! holotype, destroyed by sampling?; COLO! L-79776, lectotype designated here). The holotype collection of Sarcogyne athroocarpa has only a Lecidea species remaining, and the Sarcogyne is presumed to have been destroyed by sampling. In COLO we have discovered a syntype of S. athroocarpa, originally identified by W.A. Weber, which we designate as a lectotype. Unfamiliar with extremely reduced forms of A. badiofusca in North America at high elevations, H. Magnusson, who described the reduced dispersed apothecia of A. badiofusca as an endolithic Sarcogyne, suggested that its sterile areoles represented another "Acarospora" species (Magnusson 1935). As with A. badiofusca, the hymenium is low (60–70 μm) and the perithecial crown (exciple) is brown (it often becomes
  
MYCOTAXON
 
Volume 124, pp. 353–359 April–June 2013
Lichenological notes 6: nomenclatural acts

1e Herbarium, Department of Botany and Plant Sciences, University of California,
Riverside, CA 92521-0124, U.S.A.
2Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences,
Prague, Kamýcká 129, Praha 6 - Suchdol, CZ–165 21, Czech Republic
: 1*Knudsen@ucr.edu &2 kocourkovaj@fzp.czu.cz 2
  Lecanora peltastictoides    Aspicilia elenella americana 
Melanophloea americana T. montanaM. montanaSarcogyne athroocarpa
Acarospora badiofuscaPleopsidium
stenosporumP. flavum
 Acarosporaceaeelocarpaceae
The species
Acarospora badiofusca 

Lecanora badiofusca

Sarcogyne athroocarpasyn. nov.

     
lectotype designated here
    Sarcogyne athroocarpa    Lecidea
Sarcogyne
S. athroocarpa

A. badiofusca
A. badiofusca
Sarcogyne, 
AcarosporaA. badiofusca
μ

Aspicilia peltastictoides 
 
 Sarcogyne athroocarpa
A. badiofusca.
Aspicilia peltastictoides comb. nov. 

Lecanora peltastictoides

        
Lecanora peltastictoides 
Lecanora
           
     Aspicilia      

Lecanora peltastictoides
Lecanora peltastictoidesAspicilia
μ


       Aspicilia   
A. brucei
A. cinerea   A. peltastictoides
... 
      Aspicilia peltastictoides  
 Acarospora strigata 
Lecanora utahensis
A. strigataA. peltastictoides.A. strigata  
A. peltasticta
peltastictoides.Lecanora utahensis     A. peltastictoides

 Lecanora utahensis,
Lecanora dispersa
Lecanora
A. peltastictoidesL. utahensis
         
     

   



Melanophloea americana 
elenella americana
 
 
Melanophloea montana 
elenella montana


Melanophloeaelocarpaceae   
M. pacifica
     M. montana    
     M. americana   
    
  M. americana  M. montana   elocarpaceae
elenella  elenellaceaeMelanophloea americana M. montana
elenella

Melanophloea americana M. montana elocarpon

   
    
M. americana

M. pacifica 
       
      elenella 

Melanophloea americanaM. montanaelenella

Melanophloea
    
   
M. americana


elenella


Melanophloea americanaM. montana
          elenella  


elenellaceae


M. americanaM. montanaelenella
 elenella
        
       M. americana  M. montana  
  M. pacifica       
        
        
    M. americana
M. montanaelenella
T. americana T. montana
MelanophloeaM. americanaM. montana
           
Melanophloea americana.  M. americana 
    

           

 
     
... 
Pleopsidium flavum   

M. americana

           
M. americana 

     


Pleopsidium flavum 
    Parmelia flava  oxytona

Lecanora stenosporasyn. nov.
Acarospora stenospora

Acarospora stenospora

Pleopsidium stenosporum





Lecanora stenospora        
          
         Pleopsidium 
   Pleopsidium    .   
 
P. stenosporum
 P. flavum. 

         
 P. flavum          
Lichenostigma saxicola
    
  
 P. flavumP. stenosporum
P. flavum          
 P. flavum, 
Acknowledgments
  

             
      
         

  
Pleopsidium
Literature cited
Melanophloea

   Acarospora  Pleopsidium    
Lecanorales
elocarponLecanoraleselocarpaceae

 Melanophloea 

           

Pleopsidium stenosporum

              

Sarcogyne plicata

... 
         Sarcogyne
magnussoniiAcarosporaceae


elocarpon
            



BiatorellaSarcogyne
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elenella 

       Microglaena    
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Melanophloeaelocarpaceae
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
   
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elenella
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Lecanora

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  elocarpon
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   Lecanora dispersa    
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... Indeed the difficulties in separating apothecia from perithecia have been highlighted in previous studies (e.g., Schmitt et al. 2009). Less understandable, however, is the claim by Aptroot and Schumm (2012) that Melanophloea americana and M. montana were members of the genus Thelenella (for complete critique see Knudsen & Kocourková 2013 Description. For a description and illustrations refer to Kondratyuk et al. (2015). ...
... The asci of the species have a K/Iþ blue tholus and the hymenium has the unusual character of the reacting K/Iþ blue-black. Like T. americana, this species was placed in the genus Thelenella by Aptroot & Schumm (2012) on the basis of speculation related to the evolution of polyspory (for complete discussion see Knudsen & Kocourková 2013). ...
Article
Recent molecular phylogenetic studies of the lichen family Acarosporaceae have shown that genera in this group, as traditionally defined, are not monophyletic and that changes are required to accommodate the discovery that taxa with disparate thallus morphologies are often closely related. Here we use phylogenetic inferences of mtSSU sequence data to show that seven species (Acarospora dispersa, A. rhizobola, A. terricola, Melanophloea americana, M. coreana, M. montana and Thelocarpella gordensis), currently placed in four genera and three families, and with divergent thallus morphologies, all belong to a single strongly supported clade within the Acarosporaceae. Members of the clade all have apothecia with an incurving parathecium which forms globose apothecia in which the apothecial disc is less than or equal to half the width of the equatorial diameter of the hymenium, and long bacilliform conidia. We transfer the species to Trimmatothelopsis, the oldest generic epithet available for the group and provide a taxonomic treatment that includes analysis of the published literature pertaining to these taxa, a key to species and descriptions of the four taxa that occur in North America. Rhizohyphal bundles are reported from two terricolous species, T. terricola and T. rhizobola.
... The species appears to be naturally rare or infrequent. For a photograph and description refer to Knudsen and Kocourková (2013 (Hasse 1913). It has not been recollected in the San Jacinto Mountains since that time. ...
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San Bernardino National Forest in southern California encompasses two major mountain ranges, the San Bernardino Mountains and the San Jacinto Mountains. Here 414 taxa of lichenized fungi are reported from San Bernardino National Forest as a whole; 327 from the San Jacinto Mountains (including the Santa Rosa Mountains), and 289 from the San Bernardino Mountains. Two species new to science are described: Lecanora remota and Lecidea stratura. Two undescribed taxa of Bellemerea and Scytinium are reported, both currently under study. Five species are reported new for North America and California: Gloeoheppia rugosa, Lecanora formosa, Peccania cernohorskyi, P. corallina and Psorotichia vermiculata. Peccania cernohorskyi is also reported new for Canada (British Columbia). Eight species are reported new for California: Caloplaca diphasia, C. isidiigera, Peltigera extenuata, Rhizocarpon simillimum, Rinodina lobulata, R. terrestris, Sarcogyne squamosa, and Xylographa difformis. Lecidea xanthococcoides is recognized as a synonym of Lecanora cadubriae. The California endemic Lecidea kingmanii is reported as producing 4-0-demethylplanaic acid. Polysporina simplex is treated as Acarospora simplex and P. urceolata as A. urceolata. The new combination Acarospora gyrocarpa is proposed for Polysporina gyrocarpa.
... One species, initially described as a non-lichenized Thelenella (Aptroot 1999), has subsequently been shown to belong to a monotypic genus in the Trypetheliaceae, Aptrootia Lücking & Sipman (Lücking et al. 2007). Recent inclusion of three polysporous species by Aptroot and Schumm (2012) has been rejected by Knudsen and Kocourková (2013). Transfer of several species of the mostly foliicolous genus Aspidothelium Vainio to Thelenella by Harris (1995) and Farkas and Sipman (1997) was disputed by Lücking (2008), who postulated a distant relationship between Aspidothelium and the remainder of the Thelenellaceae. ...
Article
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Two new species of Thelenella are described from central North America. Thelenella calcicola occurs on calcareous rocks in Kansas and Missouri, and produces irregularly submuriform, 7-11 × 1-septate, colorless ascospores. Thelenella nubifera, based on specimens previously referred to T. luridella, occurs on sandstone in Georgia, Kansas, Missouri, and Oklahoma, and produces muriform, 6-9 × 3-4-septate, grey or brown pigmented ascospores. A third species from northwestern South Dakota is characterized but not formally described. Thelenella luridella is tentatively excluded from North America. Thelenella brasiliensis is reported new for Kansas, southwest Oklahoma, and Texas; T. modesta is reported new for Kansas and North Dakota; T. muscorum var. muscorum is reported new for or Kansas and Oklahoma; and T. pertusariella is reported new for Kansas. A worldwide key to Thelenella is provided.
... Acarospora umensis was tentatively distinguished from A. badiofusca based on the more continuous thallus of small areoles, and was already recognized as a synonym in the Fennoscandia lichen biota (Foucard 2001). Sarcogyne athroocarpa was recently recognized as synonym of A. badiofusca with a very reduced and dispersed thallus from 2743 m in Colorado (Knudsen & Kocourková 2013). ...
Article
Acarospora badiofusca has an irregularly areolate thallus with an uninterrupted algal layer; it is a montane species and occurs in Asia, North America and Europe. Acarospora boulderensis differs from A. badiofusca in having a squamulose thallus, an interrupted algal layer and a higher hymenium. Acarospora boulderensis was considered a synonym of A. badiofusca by North American taxonomists, but is here recognized as a distinct species occurring in North America. Acarospora asperata H. Magn. is revised as a synonym of A. boulderensis. Acarospora irregularis from central Europe (Czech Republic, Hungary and Slovakia), as well as Greece and Italy (Sardinia), was considered a synonym of either A. badiofusca by Weber or of A. nitrophila by Clauzade and Roux.It differs, like A. boulderensis, from A. badiofusca in having a squamulose thallus, an interrupted algal layer and usually a higher hymenium. However, A. irregularis differs from A. boulderensis in having wider hyphal bundlesinterrupting the algal layer and distinct algal palisades. Acarospora badiofusca var. lepidioides is synonymized with A. irregularis.
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After adjusting for synonyms and misdeterminations, 279 species in 89 genera are documented herein for the Mojave Desert. This catalog is based on species lists reported in nine peer reviewed publications and includes a general overview of the Mojave Desert in terms of climate, environmental sensitivity, vegetation, and geology. It also includes brief information about each of the eight general collection areas (two papers cover the same study area), as well as a summary discussion of the Mojave Desert lichen flora.
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Rock-inhabiting fungi (RIF) are melanized, meristematic fungi which dwell on and within rocks and have adapted to withstand harsh conditions in extreme habitats worldwide. Their morphological and genetic diversity remained unknown for a long time, but in the past few years culture-dependent and molecular phylogenetic approaches have contributed to uncovering the species richness of these otherwise very inconspicuous fungi. Only a few taxa of RIF develop both sexual reproductive structure (fertile stromata and/or pycnidia) and show multiple life styles, interacting with algae and lichen thalli in different ways. The genus Lichenothelia is one of these: It is characterized by fertile stromata and pycnidia and by species which can grow on and within exposed rocks, optionally associating with algae, with some species also being lichenicolous. The genus Lichenothelia includes up to now 25 species and form a monotypic family (Lichenotheliaceae) and order (Lichenotheliales) in Dothideomycetes. Here we focused on a group of Lichenothelia taxa distributed in the hot arid region of the Sonoran and Mojave Deserts in the Joshua Tree National Park in California. We performed molecular and morphological analyses and culture isolation and considered the ecology of the environmental samples to disentangle five species. We present the revision of two species already described, Lichenothelia calcarea and L. convexa, and introduce three new taxa to science, L. arida, L. umbrophila and L. umbrophila var. pullata. Copyright © 2015, Mycologia.
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Trimmatothelopsis versipellis : discovery of several localities in the department of Finistère (France), phylogenetic placement and taxonomic consequences.— The discovery of several new localities of Trimmatothelopsis versipellis in the department of Finistère in 2013 allowed us to better describe this species, to understand its ecology and to analyze its DNA. A phylogenetic analysis including this species and 30 other Acarosporaceae shows that T. versipellis clearly belongs to this family, but is not related to Polysporina subfuscescens (which is heterogeneous) nor to the genus Myriospora. It belongs to the same clade than two morphologically and anatomically very distinct species, Thelocarpella gordensis and Acarospora rhizobola. As a result, the genus Trimmatothelopsis is maintained (with a single species, T. versipellis), as well as the genus Thelocarpella (also monospecific), whereas Acarospora rhizobola, which has to be excluded from Acarospora, most probably belongs to a new genus. T. versipellis is also compared with three species of Melanophloea for which the taxonomic placement is still debated.
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Arthothelium lichenale is placed in synonymy with Mycoporum compositum. The morphological distinctions between Collema pustulatum and Leptogium apalachense are discussed and the North American distributions of the species are revised. The distribution of Lecidea roseotincta in North America is extended to include the central and southern Appalachian Mountains. The distribution of Lecidella subviridis is expanded in northeastern North America. Pyrenula reebiae is placed in synonymy with P. leucostoma and both species are illustrated and discussed. Pyrenula shirabeicola is removed from synonymy with P. pseudobufonia and both species are illustrated and discussed. The following taxa are newly reported from North America: Calvitimela cuprea (Canada, Newfoundland & Labrador), Hypotrachyna consimilis (U.S.A., North Carolina), Schismatomma graphidioides (U.S.A., Alabama and New Jersey).
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