Observationes in Plantas Rossicas et descriptiones specierum novarum
- Title: Observationes in Plantas Rossicas et descriptiones specierum novarum
- Abbreviation: Observ. Pl. Ross.
- Authors: Christian von Steven
- Publication: [1], post 12/24 Dec 1817; [2], 1824-Sep 1828; [3], 1834
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