File:EB1911 Algae - Fig. 2.-Chlorophyceae.png

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EB1911_Algae_-_Fig._2.-Chlorophyceae.png ‎(601 × 423 pixels, file size: 209 KB, MIME type: image/png)

Summary

Description
English: Algae - Fig. 2.-Chlorophyceae from Encyclopædia Britannica 1911.

Explanation [in brackets: modern classification]

  • A. Chlamydomonas sp., unicellular; chr., chromatophore; p., pyrenoid; n., nucleus; p.v., pulsating vacuoles; e.s., eyespot [Today placed in Chlorophyta: Chlorophyceae].
  • B1. Volvox sp., with a, antheridia, and o, oogonia [Chlorophyta: Chlorophyceae].
  • B2. Volvox sp., surface view of a single cell showing connexions [idem].
  • C. Pandorina sp., a 16-celled colony [idem].
  • D. Hydrodictyon, a single mesh surrounded by 6 cells [idem].
  • E. Microspora sp., showing H-pieces in the wall [idem].
  • F. Entoderma sp. [today called Endoderma; Chlorophyta: Chlorophyceae], endophytic in Ectocarpus [Phaeophyceae].
  • G. Coleochaete sp., growing as a plate [Streptophyta: Coleochaetophyceae].
  • H. Oedogonium sp., intercalated growth by insertion of new piece (a) leaving caps [Chlorophyta: Chlorophyceae].
  • K. Struvea sp., showing branches forming a net-work [Chlorophyta: Ulvophyceae].
  • L. Caulerpa sp., showing portion of axis with leaf-like and root-like appendages [Chlorophyta: Ulvophyceae or Bryopsidophyceae].
  • M1. Chara sp., axis with leaf-like appendages and a branch [Streptophyta: Charophyceae].
  • M2. Chara sp., apical region [idem].
  • N. Botrydium, a simple siphonaceous alga with root-like attachment [Xanthophyceae]
  • O. Acetabularia Mediterranea, mushroom-like calcareous siphonaceous alga [Chlorophyta: Ulvophyceae].
Date
Source Encyclopædia Britannica 1911
Author Anonymous; Hugh Chisholm, editor

Licensing

Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.

This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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depicts

Chlorophyta

green algae

inception

1 January 1911Gregorian

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