File:Potamogeton perfoliatus winter shoot 18-19.png

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Description
English: Potamogeton perfoliatus (18-19): 18, winter shoot showing elongation of internodes; 19, growing tips of same
Date
Source Freshwater and Marine Image Bank - "Potamogetons in Relation to Pond Culture," Plate XXV. Bulletin of the United States Bureau of Fisheries, vol.33, 1913 (File:Potamogeton perfoliatus 1.jpg)
Author Emmeline Moore,
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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Date/TimeThumbnailDimensionsUserComment
current18:54, 26 September 2014Thumbnail for version as of 18:54, 26 September 2014931 × 698 (113 KB)Nonenmac (talk | contribs)touched up the results of a bad color adjustment
17:28, 26 September 2014Thumbnail for version as of 17:28, 26 September 2014931 × 698 (114 KB)Nonenmac (talk | contribs)User created page with UploadWizard

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