File:EB1911 Gymnosperms - Zamia - ovule.jpg

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EB1911_Gymnosperms_-_Zamia_-_ovule.jpg ‎(501 × 365 pixels, file size: 57 KB, MIME type: image/jpeg)

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English: Drawing of Zamia (part of ovule in longitudinal section): P, prothallus; A, archegonia; N, nucellus; C, pollen chamber; Pt, pollen tube; Pg, pollen grain; G, generative cell (second cell of pollen tube).
Date published 1911
Source “Gymnosperms,” Encyclopædia Britannica (11th ed.), v. 12, 1911, fig. 7, p. 756.
Author After Webber.
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Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

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current15:38, 21 August 2017Thumbnail for version as of 15:38, 21 August 2017501 × 365 (57 KB)Bob Burkhardt (talk | contribs){{Information |Description ={{en|1=Drawing of ''Zamia'' (part of ovule in longitudinal section): ''P'', prothallus; ''A'', archegonia; ''N'', nucellus; ''C'', pollen chamber; ''Pt'', pollen tube; ''Pg'', pollen grain; ''G'', generative cell (second...

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