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Summary
DescriptionPirus tenuinervis N. THEOBALD 1934.jpg
Français : Pirus tenuinervis, dessin d'une feuille, décrite dans l'article de Nicolas Théobald :"La flore des grès oligocènes de Spechbach-le-Bas (Haut-Rhin)", Bulletin de la Société Industrielle de Mulhouse, Janvier 1934, p.1-18, 2 pl.
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