Stereocaulon paschale (L) Hoffm.


Known as Cottontail Foam Lichen or Cottontail Coral in English and Stéréocaule Lapin in French, Swales encountered this Stereocaulon lichen "on mountain north of Hudson's Bay Store among Cassiope tetragona" while travelling across Nunavut in August 1964. As she wrote on the voucher label, the Stereocaulon was "watered by melting snow." 

Cottontail Foam Lichen are known to favour mossy locales, rocks, and sandy soils. Because of their whiteish to greyish coral-like appearance, Stereocaulon lichen are also referred to as foam lichens.