File:EB1911 Lichens - Usnea barbata (2).jpg

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Description
English: Usnea barbata: mag. nearly 100 times; see legend below.
Date published 1911
Source Encyclopædia Britannica (11th ed.), v. 16, 1911, “Lichens,” fig. 8, p. 580.
Author After Sachs, from De Bary’s Vergleichende Morphologie und Biologie der Pilze, Mycetozoen und Bacterien
Permission
(Reusing this file)
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.
English: Legend:
A, 

Optical longitudinal section of the extremity of a thin branch of the thallus which has become transparent in solution of potash.

B,

Transverse section through a stronger branch with the point of origin of an adventitious branch (sa).

r, Cortical layer.
m, Medullary layer.
x, Stout axile strand.
g, The algal zone (Cystococcus)
s, Apex of the branch.

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current19:49, 30 April 2017Thumbnail for version as of 19:49, 30 April 2017530 × 722 (158 KB)Library Guy{{Information |Description ={{en|1=''Usnea barbata'': mag. nearly 100 times; see legend below.}} |Source =''Encyclopædia Britannica'' (11th ed.), v. 16, 1911, “Lichens,” fig. 8, p. 580. |Author =After Sachs, from De Bary’s ''V...
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