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 Add this item to the list   Graphis collinsiae
    

General information

 Summary:Graphis collinsiae Lücking & Lumbsch, The Bryologist 113 (2): 357 (2010) [MB#516784] 
 MycoBank #:516784 
 Epithet:collinsiae
 Rank:
 
 Authors:Lücking & Lumbsch
 Authors (abbreviated):Lücking & Lumbsch
 Literature:
 
 Page #:357
 Year of effective publication:2010
 Name type:Basionym 
 Gender:Feminine
 Date public:2015-03-02 19:37:59 
 Name status:Legitimate
 Remarks:Graphis collinsiae is intermediate between Graphis insulana (Müll. Arg.) Lücking & Sipman and G. subhiascens (Müll. Arg.) Lücking, with which it shares a similar thallus and lirellae morphology and anatomy and ascospore-type. Graphis collinsiae agrees with G. insulana in having a finely inspersed hymenium but lacks lichen substances, whereas the pantropical G. insulana produces norstictic acid always in relatively large quantities. Lichen substances are also absent from the pantropical G. subhiascens, but that species has a clear hymenium lacking inspersion. Comparable variation in other groups within Graphis has seen the coining of the terms chemomorphs and inspersomorphs, that is species having similar appearance and ascospores but differing in secondary chemistry and hymenium inspersion (Lücking 2009).

Two other species of Graphis have entire labia, a laterally carbonized excipulum, muriform ascospores, and lack lichen substances. The palaeotropical G. subvelata Stirt. has smaller ascospores (35–50 x 8–15 µm), whereas G. pilarensis Cáceres & Lücking from Brazil has short, prominent lirellae with apically thin complete thalline margins and much larger ascospores (up to 250 x 30 µm; Lücking et al. 2009).
 
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