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Arctocetraria nigricascens
Scientific Name: Arctocetraria nigricascens
Family: Parmeliaceae
Category: Lichen
Growth: Lichenous
Duration:
Other Names:
Arctocetraria nigricascens
Arctocetraria nigricascens is a lichen species, sometimes referred to by the deprecated synonym Cetraria nigricascens.
Taxonomy and Nomenclature
- Scientific Name: Arctocetraria nigricascens (Nyl.) Krnefelt & A. Thell
- Family: Parmeliaceae (implied from related genera discussion)
- Synonym: Cetraria nigricascens (Nyl.) Elenkin (Deprecated)
Distribution and Habitat
- Primarily found in Arctic regions.
- Specific locations mentioned include:
- Spitsbergen (Nordenskild Land, Reindalen 1986)
- Zemlya Frantsa-Iosifa
- Yamal-Gydan area
- Taimyr
- Severnaya Zemlya
- Anabara-Olenyok area
- Kharaulakh
- Melville Bay (Canada)
- Buddha Mountain, Tibet (High altitude)
- GB Ambarchik
- Grows on various substrates including:
- Soil
- Mosses and litter
- Racomitrium lanuginosum (a moss species)
- Pebbles
- Large rock blocks
Morphological Characteristics
- Thallus dorsiventral, loosely attached to the substrate.
- Lobes can grow up to 2 mm broad and 4 cm long.
- Lobes may appear almost fruticose (shrub-like).
- Upper side of lobes is dark and slightly channeled.
Ecological Role
- Often associated with dry and exposed Arctic environments.
Interactions with Other Organisms
- Found growing alongside other lichens such as Cetraria islandica and Cetrariella delisei.
- Grows alongside mosses such as Seligeria polaris.
Further Information
- Discover Life provides information on the biology, natural history, ecology, identification, and distribution of Arctocetraria nigricascens.
- Specimens are stored in the Lichen Herbarium KPABG.
- National Museum of Natural History Collections contain information on this species.
- Index Fungorum lists Arctocetraria nigricascens.