Bulletin of the British Museum (Natural History)
Bulletin of the British Museum (Natural History)
Bulletin of the British Museum (Natural History)
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LICHEN GENUS MICAREA IN EUROPE 95<br />
The identification (and subsequent annotation and cataloguing) <strong>of</strong> a single specimen <strong>of</strong><br />
Micarea (which more <strong>of</strong>ten than not is fragmentary or in poor condition) can be very time<br />
consuming, and <strong>of</strong>ten involves lengthy microscopical examination. The unfortunate consequence<br />
<strong>of</strong> this is that I have not been able to examine a large number <strong>of</strong> potentially available<br />
specimens from several major institutional and private herbaria.<br />
Despite <strong>the</strong> above problems and shortcomings, I have tentatively attempted below to assign<br />
<strong>the</strong> species <strong>of</strong> Micarea to some general distributional types. In most cases I have paid little<br />
attention to purely literature sources <strong>of</strong> records because I have found that many such reports,<br />
even those by lichenologists whose works I hold in <strong>the</strong> highest esteem, can be unreliable in<br />
respect <strong>of</strong> current species concepts.<br />
A. Eu-Atlantic - mainly confined to oceanic areas including west Norway, <strong>the</strong> <strong>British</strong> Isles, western<br />
France, and Macaroenesia.<br />
M. alabastrites M. stipitata<br />
M. nigella M. subnigrata<br />
M. olivacea tM. subviolascens<br />
*M. prasina (with 'unknown C) M. syno<strong>the</strong>oides<br />
*M. pycnidiophora<br />
*with sou<strong>the</strong>rn tendency twith affinity to group G<br />
B. Sub-Atlantic - as above, but also present in high rainfall (annual rainfall <strong>of</strong> >800 mm) areas <strong>of</strong><br />
central Europe (Alps, Carpathians, etc.).<br />
M. adnata M. lignaria var. endoleuca<br />
M. cinerea<br />
C. Boreal - mainly confined to Fennoscandia, but absent or rare from west Norway.<br />
M. anterior M. melanobola<br />
M. contexta M. muhrii<br />
M. eximia M. osloensis<br />
M. melaeniza M. rhabdogena<br />
D. Boreal-continental - present in Fennoscandia and central Europe, but rare or absent from west<br />
Norway and western Britain.<br />
M. elachista M. lithinella<br />
M. hedlundii *M. melaenida<br />
*but known from western France<br />
E. Continental - known only from central Europe.<br />
M. curvata<br />
F. Montane (arctic-alpine) - at high altitudes in montane regions <strong>of</strong> Britain and central Europe, but<br />
sometimes at low altitudes in Fennoscandia.<br />
M. assimilata M. subleprosula<br />
M. crassipes M. turfosa<br />
M. incrassata<br />
G. Arctic - mainly confined to within <strong>the</strong> Arctic Circle, but possibly extending southwards along <strong>the</strong><br />
Atlantic coast.<br />
M. ternaria<br />
H. Widely Distributed - known from <strong>British</strong> Isles, Fennoscandia, central Europe, and <strong>of</strong>ten elsewhere.<br />
More records will probably reveal distinct phytogeographical tendencies for some <strong>of</strong> <strong>the</strong><br />
species included here.<br />
M. bauschiana M. melaena<br />
M. botryoides tM. misella<br />
M. denigrata M. myriocarpa<br />
XM. globulosella M. nitschkeana<br />
M. intrusa XM. peliocarpa<br />
M. leprosula *M. prasina<br />
M. lignaria var. lignaria<br />
M. sylvicola<br />
M. lutulata<br />
*races containing 'prasina unknowns A and B'<br />
twith possible affinity to group D<br />
twith possible affinity to group B<br />
M. tuberculata