580 Pflanzen (Botanik)
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- Flechten (1)
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- Naturschutzgebiet (1)
- Palynologie (1)
- Pertusaria (1)
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- Provinz Westkap 〈Südafrika〉 (1)
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After almost 85 years of palynological research, an impressive amount of pollen diagrams from the Vosges Mountains (NE France) is available. This paper presents an overview of these pollen diagrams and lists their main features and literature sources within a historical context. Furthermore, a short summary is provided on the natural and cultural context.
A new species of Pertusaria from the Namib desert is described. It is characterized by a smooth, minutely fissured brown thallus with scattered, verruciform apothecia with black ostioles, grey, K+ violet spores and the absence of lichen substances. The species is related to P. melanospora, which differs in having a yellowish thallus and in containing arthothelin and 2,4- dichloronorlichexanthone.
A sketch of the lichen vegetation of the Haarwegskloof
Renosterveld Reserve near Bredasdorp (Western
Cape, South Africa) is presented. This reserve is a representative
example of renosterveld vegetation, which
replaces the better known fynbos in relatively dry regions
on more fertile, clay- and shale-based soils. Our
sketch is a first attempt to characterize the lichen biota
of a renosterveld area. The rather low number of 76 encountered
species reflects the absence of aged trees
and large rock formations and occasional bushfires.
However, the significance of the species is great because
most have very restricted distributions in southern
Africa. Among the epiphytic lichens Physciaceae and
Xanthoria-relatives prevail, while on soil and on rock
the genus Xanthoparmelia is by far the most important,
with 22 species, among them several endemics.