Porpidia superba f. sorediata
Literature
| Authors | Title |
Year of Publication |
|---|---|---|
| A.M. Fryday; O.L. Gilbert; D.J. Galloway; B.J. Coppins | Porpidia | 2009 |
| A.M. Fryday | The genus Porpidia in northern and western Europe, with special emphasis on collections from the British Isles | 2005 |