Lecidia
Lecidia (order Lecanorales) A genus of lichens in which the thallus is crustose and may be more or less immersed in the substratum. Spores are colourless and aseptate. Apothecia are characteristically lecideine. The genus originally included numerous species but has now been divided into many different genera. Individual species can usually be recognized only by microscopic examination. They are found on a wide range of substrates.
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Allopatry , allopatry The occurrence of species or other taxa in different geographical regions. Subspecies are allopatric by definition. Compare SYMPATRY.
allop… Species , The term species, in the most general sense, refers to the various kinds of living things. Thus, species are generally recognized as distinct, fully… Companion Species , companion species A term formerly used in the Braun-Blanquetphytosociological scheme to mean ‘indifferent species’. Companion species at the associat… Indifferent Species , indifferent species A species with no real affinity for any particular community, but which is not rare (as an accidental species would be). It is fi… preferential species , preferential species In phytosociology, a species that is present with varying abundance in several communities, but is especially abundant and vigor… Centrifugal Speciation , centrifugal speciation The principle that new species are likely to arise towards the centre of the range of the present species, rather than at the…
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Lecidia