스칸디아 모스-Cladonia rangiferina

Cladonia rangiferina

Reindeer Moss

Cladonia rangiferina, also known as reindeer lichen (cf. Sw. renlav) or grey reindeer lichen, is a light-colored, fruticose lichen belonging to the family Cladoniaceae. It grows in both hot and cold climates in well-drained, open environments. Found primarily in areas of alpine tundra, it is extremely cold-hardy.

Other common names include reindeer moss, deer moss, and caribou moss, but these names may be misleading since it is not a moss. As the common names suggest, reindeer lichen is an important food for reindeer (caribou), and has economic importance as a result. Synonyms include Cladina rangiferina and Lichen rangiferinus.

Reindeer lichen, like many lichens, is slow growing (3–11 mm per year) and may take decades to return once overgrazed, burned, trampled, or otherwise consumed.

A similar-looking species, also known by the common name "reindeer lichen", is Cladonia portentosa.

Thalli are fruticose, and extensively branched, with each branch usually dividing into three or four (sometimes two); the thicker branches are typically 1–1.5 mm in diameter. The color is grayish, whitish or brownish grey. C. rangiferina forms extensive mats up to 10 cm tall. The branching is at a smaller angle than that of Cladonia portentosa. It lacks a well-defined cortex (a protective layer covering the thallus, analogous to the epidermis in plants), but rather, a loose layer of hyphae cover the photobionts. The photobiont associated with the reindeer lichen is Trebouxia irregularis. It grows on humus, or on soil over rock. It is mainly found in the taiga and the tundra.

https://en.wikipedia.org/wiki/Cladonia_rangiferina

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