File:EB1911 Palaeobotany - Lepidocarpon Lomaxii - sporangium and sporophyll.jpg

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Description

English: Drawing sporangium and sporophyll of Lepidocarpon Lomaxii fossil before development of integument: cu, lateral cushions on sporophyll; vb, vascular bundle; wp, palisade layer of sporangium wall; wi, inner layer of wall; a, base of sporangium; mg, membrane of megaspore or embryo-sac.

Date

published 1911

Source

“Palaeobotany,” Encyclopædia Britannica (11th ed.), v. 20, 1911, p. 530, fig. 12.

Author

Scott, Studies.

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	16:04, 11 September 2017		333 × 842 (67 KB)	Bob Burkhardt	{{Information \|Description ={{en\|1=Drawing sporangium and sporophyll of Lepidocarpon Lomaxii fossil before development of integument: ''cu'', lateral cushions on sporophyll; ''vb'', vascular bundle; ''wp'', palisade layer of sporangium wall; ''wi'',...

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