File:EB1911 Palaeobotany - Heterangium Grievii - stem section.jpg

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Description

English: Drawing of part of the stele of the stem of Heterangium Grievii in transverse section, showing a primary xylem-strand and adjacent tissues: px, protoxylem of strand; x, centripetal; x¹, centrifugal primary wood; mx, part of the internal wood; c.p., conjunctive tissue; x², secondary wood; cb, cambium; ph², phloem.

Date

published 1911

Source

“Palaeobotany,” Encyclopædia Britannica (11th ed.), v. 21, 1911, p. 534, fig. 21.

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	16:00, 16 September 2017		609 × 690 (199 KB)	Bob Burkhardt	{{Information \|Description ={{en\|1=Drawing of part of the stele of the stem of ''Heterangium Grievii'' in transverse section, showing a primary xylem-strand and adjacent tissues: ''px'', protoxylem of strand; ''x'', centripetal; ''x''<sup>1</sup>, c...

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