File:EB1911 Polypodium - pinna.jpg

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Description

English: Portion of a pinna of leaf of Polypodium (fern genus) bearing sori, s, on its back.

Date

published 1911

Source

Encyclopædia Britannica (11th ed.), v. 22, 1911, p. 38.

Author

Unknown author

Permission
(Reusing this file)

This image comes from the 13^th 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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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:41, 14 August 2014		318 × 585 (75 KB)	Library Guy	{{Information \|Description ={{en\|1=Portion of a pinna of leaf of ''Polypodium'' (fern genus) bearing sori, ''s'', on its back.}} \|Source =''Encyclopædia Britannica'' (11th ed.), v. 22, 1911, p. 38. \|Author =unknown artist \|Date...

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File:EB1911 Polypodium - pinna.jpg

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