Umbilicariaceae
National Institutes of Health
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Abstract Xylopsora canopeorum Timdal, Reese Næsborg & Bendiksby is described as a new species occupying the crowns of large…
Detailed morphological investigations and phylogenetic analyses of the ITS/5.8S nrDNA reveal Umbilicaria caroliniana to be a…
IntrathalJine and intracellular chlorophyll concentrations together with thallus structure were studied in 12 spccies of the…
An attempt is made to interpret form-functional relationships in 20 Spanish Umbilicariaceae taxa based on results obtained during…
SUMMARY Many foliose lichen with a pale coloured thallus in the dry state show remarkable darkening when they become wet. This…
Etude anatomique comparative chez quatre especes de Lasallia. Un modele anatomique general est propose, et les relations entre l…
InUmbilicaria hirsuta andU. grisea the so-called soredia originate from structured plectenchyma of the upper thallus layer (thus…