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Summary
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English: Crop from 1891 w:USGS topographic map showing w:League Island on the w:Delaware River, just south of w:Philadelphia |
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| Source | USGS |
| Author | work of the U.S. Government |
| Permission (Reusing this file) |
PD |
Licensing
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 19:22, 23 March 2008 | | 1,381 × 818 (680 KB) | J Clear | {{Information |Description= Crop from 1891 USGS topographic map showing League Island on the Delaware River, just south of Philadelphia |Source= USGS |Date= 1891 |Location= League Island |Author= work of the U.S. Government |Permissio |
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Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction