Polychidium muscicola
General description:
Polychidium muscicola (Sw.) Gray
Nat. Arr. Brit. Pl. 1: 402. 1821.
Basionym: Lichen muscicola Sw., Nova Acta Acad. Upsal. 4: 248. 1784.
Biology:
Notes.
One collection overgrowing Umbilicaria polyphylla from Mt. Usborne (East Falkland).