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 Add this item to the list   Chapsa wijeyaratniana

General information

 Summary:Chapsa wijeyaratniana Weerakoon, Lumbsch & Lücking, The Lichenologist 44: 375 (2012) [MB#564108] 
 MycoBank #:564108 
 Authors:Weerakoon, Lumbsch & Lücking
 Authors (abbreviated):Weerakoon, Lumbsch & Lücking
 Page #:375
 Year of publication:2012
 Date public:2016-12-28 19:06:46 
 Remarks:Chapsa wijeyaratniana is only the fourth species in the genus to produce genuine soralia. Two other recently described species, C. defectosorediata Lücking and C. thallotrema Lücking & N. Salazar, differ in having olive-green, epiperidermal thalli with dense cortex and large, transversely septate, amyloid ascospores. Chapsa sorediata Kalb can also be distinguished by transversely septate, amyloid ascospores which are, however, smaller than in the two preceeding species; in addition, its thallus lacks a distinct cortex but is epiperidermal. Apart from the soralia, Chapsa wijeyaratniana is similar to C. alstrupii Frisch and C. sipmanii Frisch & Kalb in having large apothecia and small, muriform ascospores, but those taxa have epiperidermal, corticate thalli and ascospores with a distinct endospore and rounded lumina. Chapsa hiata (Hale) Sipman and C. kalbii Frisch are two other species with small, muriform ascospores which, like the new species, have ecorticate thalli; both lack soralia. Chapsa kalbii differs also in the weakly amyloid ascospores having a well-developed endospore and rounded lumina, whereas the ascospores in C. hiata are very small (12–15 µm long). 
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