File:NSRW Embryo-Sac.jpg
No higher resolution available.
NSRW_Embryo-Sac.jpg (285 × 561 pixels, file size: 60 KB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: In the ovule of angiosperms there is developed what appears to be a large cavity, but is really a single large spore which is not discharged. This spore germinates and develops within itself a very simple gametophyte consisting of seven cells. This spore containing its gametophyte, before it was known to be a spore, was called the embryo-sac, because the embryo was observed to develop within it. |
||
| Date | published 1914 | ||
| Source | “Embryo-Sac,” The New Student's Reference Work, v. 2, 1914, p. 611. | ||
| Author | Unknown artist | ||
| Permission (Reusing this file) |
|
|
This file has been extracted from an original image in The New Student's Reference Work: File:LA2-NSRW-2-0134.jpg. |
|
||||||
|
The author died in 1936, so 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 80 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. | |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:43, 9 January 2019 | | 285 × 561 (60 KB) | Bob Burkhardt | {{Information |description ={{en|1=In the ovule of angiosperms there is developed what appears to be a large cavity, but is really a single large spore which is not discharged. This spore germinates and develops within itself a very simple gametophyte consisting of seven cells. This spore containing its gametophyte, before it was known to be a spore, was called the embryo-sac, because the embryo was observed to develop within it.}} |date =published 1914 |source =“Embryo-Sac,... |
File usage
The following 2 pages use this file:
