Lichens of Belgium, Luxembourg and northern France

Distribution map of Lepraria caesioalba (B. de Lesd.) J. R. Laundon  by Paul Diederich   Lepraria caesioalba (B. de Lesd.) J. R. Laundon
« Lepraria borealisLepraria crassissima »
see legend below picture
Lepraria caesioalba – Belgium (Ard), Rurbusch – © 2007 by Norbert Stapper

Two chemotypes are known from the study area (but the material from Belgium: Ard. has not yet been studied by TLC):


chemotype I ( atranorin, fumarprotocetraric, angardianic and rangiformic acids):

Over siliceous and sandstone rocks, often growing over mosses in well-lit and exposed conditions, exceptionally corticolous, on Fagus.

Belgium: Ard.: ?.

Luxembourg: Lorr.: RR.

France: Mosan: RRR, Ard.: RRR.


chemotype II (atranorin, stictic acid complex, rangiformic and norrangiformic acids):

Over siliceous rocks, often growing over mosses in well-lit and exposed conditions.

Belgium: Ard.: ?.

Luxembourg: Ard.: RR.

France: - .


Lit.: NL84: 15, NL92: 171, Kukwa & Diederich (2007).

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