• Cladonia rangiferina (L.) F.H.Wigg.
Cladonia rangiferina
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(Map updated: 11 August 2009)

This is the classic ‘Reindeer lichen’, with a rich-branching, pale grey, purple-tipped thallus. A good feature in identification is the thin, cottony webbing that surrounds the stems. Another is the one-directional orientation of the branch tips (clustered into four or three end-points). The thallus is K+ yellow. Exposed high, lichen-heath or cliff edges. Scattered across upland Ireland, except in the south.

Key characteristics

  • High, upland reindeer lichen (sometimes occurring lower), richly branching, purple-tipped
  • Stems webbed, cottony, ending in thick branch tips, all leaning to one side; the K+ yellow reaction separates it from C. arbuscula (described elsewhere) which is K negative.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Cladonia rangiferina (L.) F.H.Wigg.. [In] LichenIreland. Accessed on 2019-08-25.