File:EB1911 Horsetail.jpg
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Original file (861 × 1,386 pixels, file size: 353 KB, MIME type: image/jpeg)
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| Description |
English: Botanical drawing of a horsetail (Equisetum arvense). See legend below. |
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| Date | published 1911 | |||
| Source | Encyclopædia Britannica (11th ed.), v. 13, 1911, “Horsetail,” p. 738. | |||
| Author | artist signatures illegible | |||
| Permission (Reusing this file) |
|
English: Legend:
| Equisetum arvense. | |
| A, | Fertile shoot, springing from the rhizome, which also bears tubers; the vegetative shoots have not yet unfolded. |
| B, C, | Sporophylls bearing sporangia, which in C have opened. |
| D, | Spore showing the two spiral bands of the perinium. |
| E, | Dry spores showing the expanded spiral bands. |
| F, | Sterile vegetative shoot. |
| (A, F, reduced. B, C, D, E, enlarged.) | |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:07, 7 November 2016 | | 861 × 1,386 (353 KB) | Bob Burkhardt | {{Information |Description ={{en|1=Botanical drawing of a horsetail (''Equisetum arvense''). See legend below.}} |Source =''Encyclopædia Britannica'' (11th ed.), v. 13, 1911, “Horsetail,” p. 738. |Author =artist signatures ille... |
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