Journal
BRYOLOGIST
Volume 115, Issue 1, Pages 74-83Publisher
AMER BRYOLOGICAL LICHENOLOGICAL SOC INC
DOI: 10.1639/0007-2745-115.1.74
Keywords
Knuckles Mountains; South Asia; Thelotremataceae
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Funding
- University of Sri Jayawardenepura, Sri Lanka [ASP/06/Re/2008/11]
- British Lichen Society
- NSF [DEB-1025861]
- Division Of Environmental Biology
- Direct For Biological Sciences [1025861] Funding Source: National Science Foundation
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Six new species of Graphidaceae are described from Sri Lanka, four in Graphis sensu Staiger and one each in Fissurina and Thelotrema. Fissurina srilankensis Weerakoon, Wijeyaratne & Lucking is characterized by lirellae with well-developed labia and comparatively large, muriform ascospores. Graphis allugallenensis Weerakoon, Wijeyaratne & Lucking is similar to G. vittata but has a distinctly verrucose thalline margin along the lirellae. Graphis dotalugalensis Weerakoon, Wijeyaratne & Rivas Plata resembles G. proserpens in the exposed lirellae with striate labia and apically carbonized excipulum but differs in the comparatively large ascospores. Graphis knucklensis Weerakoon, Wijeyaratne & Wolseley features lirellae with striate labia, an inspersed hymenium, and norstictic acid as secondary compound. Graphis srilankensis Weerakoon, Wijeyaratne & Lumbsch has entire labia with a completely carbonized excipulum, inspersed hymenium, transversely septate ascospores, and produces norstictic acid. Finally, Thelotrema pseudosimilans Weerakoon, Wijeyaratne & Lumbsch is close to T. similans in the corticate thallus and prominent apothecia with narrow pore, but has consistently larger ascospores.
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