File:EB1911 Palaeobotany - Cheirostrobus - diagram of cone.jpg

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Description

English: Drawing of Cheirostrobus: diagram of cone, the upper part in transverse, the lower in longitudinal section. In the transverse section six sporophylls, each showing three segments, are represented: Sp.a, section through sterile segments; Sp.b, section through sporangiophores; st, laminae of sterile segments; f, peltate expansions of sporangiophores; sm, sporangia; v.b. vascular bundles; cy, stele of axis (Ax). In the longitudinal section the corresponding parts are shown.

Date

published 1911

Source

“Palaeobotany,” Encyclopædia Britannica (11th ed.), v. 20, 1911, p. 528, fig. 7.

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	17:31, 5 September 2017		803 × 840 (355 KB)	Bob Burkhardt	{{Information \|Description ={{en\|1=Drawing of ''Cheirostrobus'': diagram of cone, the upper part in transverse, the lower in longitudinal section. In the transverse section six sporophylls, each showing three segments, are represented: ''Sp.a'', s...

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