Cladonia cervicornis subsp. verticillata (NL: Stuifzandstapelbekertje / EN: 'Ladder Lichen' / DE: Etagen-Becherflechte) is a lichen in the family Cladoniaceae. Podetia are cup-like, the cups proliferating from the centre to form tiers, i.e. one cup inside another. Soredia are absent, basal squamules entire or shallowly lobed, lobes rounded, bluish green when fresh, white beneath, not curled upwards when dry. Small brown apothecia on the margins of the cups. The species is mainly found in heathland, in rock crevices and on drystone walls. In Belgium it is a rare species due to loss of suitable habitat.
Image: Kessel (BE) - 28/01/2011
© Johan Dierckx
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