| Name | Phascum ludovicianum Sullivant |
| Authorship | Sullivant |
| Rank | Species |
| Placed in | Phascum |
| Citation | 1856 Manual [A. Gray], ed. 2. 616 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Phascum ludovicianum Sullivant |
| Identification made in | [no date] (1) |
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