The lichen genus Physcia in North America.
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Weinheim :
J. Cramer,
1963.
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| Series: | Beihefte zur Nova Hedwigia ;
Heft 7. |
| Subjects: |
| Physical Description: | 172 pages : illustrations |
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