Lepraria elobata T√łnsberg
Nomenclatural data
Sommerfeltia 14: 197 (1992)
Morphology
Leprose, powdery, not cottony, thin; whitish grey, usually greenish; thallus margin always diffuse; medulla not evident; soredia mostly fine, loosely to relatively densely packed, predominantly without projecting hyphae; consoredia rare.
Chemistry
Greenland specimens contained atranorin, the stictic acid complex and zeorin (n = 3).
Remarks
L. elobata is chemically identical with L. lobificans, however, it is quite well defined morphologically. The thallus of L. elobata is thin and does not have a well developed medulla and projecting hyphae from soredia, unlike L. lobificans. Distinction of L. elobata as a separate species is confirmed by its unique DNA sequences (Ekman & T√łnsberg 2002). L. elobata is also chemically similar to L. caesioalba var. groenlandica but is different morphologically, see the discussion under that taxon. In Greenland the material of L. elobata is morphologically similar to L. caesiella. The latter species differs chemically in not producing the stictic acid complex.
Ecology and distribution

Greenland
On soil and bryophytes.
L. elobata is reported as new to Greenland. It has been found in three localities on the southern and western coast of the Low Arctic.
Literature
Saag, L., Hansen, E. S., Saag, A. & Randlane, T. 2007.
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