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Lichen products are represented in several different chemical classes, including terpenoids, orcinol derivatives, chromones, xanthones, depsides, and depsidones. Over 800 lichen products of known chemical structure have been reported in the scientific literature, and most of these compounds are exclusively found in lichens. [ 1 ]
Cetraria sepincola, the chestnut wrinkle-lichen, is a species of foliose lichen in the family Parmeliaceae. [2] It forms compact, cushion-like colonies typically 0.5–2 cm ( 1 ⁄ 4 – 3 ⁄ 4 in) high, with a yellowish-green to dark brown upper surface and lighter underside.
Rhizocarpon timdalii is a species of saxicolous (rock-dwelling), crustose lichen in the family Rhizocarpaceae. [1] Identified and described as a new species in 2002, this lichen is characterized by its brown thallus composed of convex areoles. It occurs in Europe and North America.
Thiophanic acid is a chlorine-containing xanthone compound first isolated from the lichen Lecanora rupicola in 1898. Its molecular structure, definitively established in 1966, consists of a xanthone core with four chlorine atoms and three hydroxyl groups, giving it the chemical formula C 14 H 6 Cl 4 O 5 .
Lichen products are chemical compounds produced by lichens. Pages in category "Lichen products" The following 44 pages are in this category, out of 44 total. ...
List of lichen products; Chemical spot tests on the foliose lichen Punctelia borreri showing thallus (top) and medulla (bottom). The pinkish-red colour change of the medulla in the C and KC tests indicate the presence of gyrophoric acid, a chemical feature that helps to distinguish this lichen from similar species in the same genus. [121]
Chrysothrix chlorina, the sulphur dust lichen, is a species of leprose (powdery) crustose lichen in the family Chrysotrichaceae. [3] Originally described scientifically by the Swedish lichenologist Erik Acharius over 200 years ago, it has been shuffled to many different genera in its taxonomic history before finally being transferred to Chrysothrix in 1981.
Baeomyces heteromorphus is a species of terricolous (ground-dwelling) lichen in the family Baeomycetaceae. [2] It has an Australasian distribution. Characteristics of the lichen include its greenish-grey thallus, the pink to brownish discs of its apothecia (fruiting bodies), translucent spores lacking internal partitions (), and the presence of the secondary metabolites (lichen products ...