Comparing the retention times ([t.sub.R]) and UV spectra (190-400 nm) of the main peaks with those of reference substances previously isolated from lichens confirmed that the methanol extract of Cetraria
islandica contains the depsidone fumarprotocetraric acid ([t.sub.R] = 26.397 min) as its main constituent (> 90% of total integrated area); it also contains traces of the related depsidone protocetraric acid ([t.sub.R] = 21.769 min).
steppae Savicz is conspecific with Cetraria
aculeata (Schreb.) Fr.
muricata (Ach.) Eckfeldt--Ca: Barreno et al.
The mound was extensively covered with Cetraria
nivalis and Cladina spp.
In traditional medicine some lichen species such as Iceland moss, Cetraria
islandica, have been widely used for treating inflammatory conditions such as asthma and gastritis, as well as tuberculosis, without being associated with any adverse effects.
Exposed ridges are dominated by Cetraria
nivalis and gravel.
Lichens have a large variety of uses and for some of them, ethnopharmacological properties are reported as for Cetraria
islandica still indicated as a cough remedy (Van Haluwyn and Lerond, 1993).
Among lichens, Alectoria ochroleuca and Cetraria
1999b) and 80% for the isolichenan-type glucan, Ci-3, from Cetraria
islandica (Olafsdottir et al.
In the two species of lichens, the137Cs concentration pattern was similar to that of Salix, with a variation between 65 and 138 Bq kg-1 in Cetraria
nivalis and between 209 and 305 Bq kg-1 in Cladina mitis.
crespoae (Barreno & Vazquez) Karnefelt -- LE: Lopez de Silanes et al.
Ingolfsdottir, K, Breu W, Huneck S, Gudjonsdottir GA, Wagner H (1994) In vitro inhibition of 5-lipoxygenase by protolichesterinic acid from Cetraria