| Name | Petrak, Franz & Sydow, Hans |
| Agent type | Team/Group |
| First date flourished | 1927 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ef1b0d55-2a93-42ce-841b-a3b646e18c3e |
| Variant name | Petrak, F. & Sydow, H. |
| Variant name | F. Petrak & H. Sydow |
| Variant name | Franz Petrak & Hans Sydow |
| Author name | Petrak & Sydow |
| B & P Author Abbrev. | Petr. & Syd. |
| Full Name | Petrak, Franz & Sydow, Hans |
| Specialty Author | FungiAndLichens |
| Citation as Author | Feddes Repertorium. Zeitschrift für Botanische Taxonomie un Geobotanik. Beiheft. Berlin |
| Team Members: | Petrak, Franz Sydow, Hans |
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