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Reindeer moss : ウィキペディア英語版
Cladonia rangiferina

''Cladonia rangiferina'', also known as reindeer lichen (c.p. Sw. ''renlav''), lat., is a light-colored, fruticose lichen belonging to the Cladoniaceae family. 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 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 (3–5 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''.
==Description==
Thalli are fructicose, 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 also grows mostly in taiga and the tundra.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Cladonia rangiferina」の詳細全文を読む



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