. Über Vorversuche zu untersuchungen über die Vareitätenbildung von Helix hortensis Müller und Helix nemoralis LANG. Bastarde v Helix horlensis Müller u, Helix nemoralis L Taf. P Hesse et E. Kleiner del VerLvl'. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lang, Arnold, 1855-1914. Jena, G. Fischer

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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherjenag, bookyear1904