| Name | Anthracothecium tetraspermum Riddle |
| Authorship | Riddle |
| Rank | Species |
| Placed in | Anthracothecium Hampe ex A. Massalongo |
| Citation | 1916 Bull. Torrey Bot. Club 43: 148 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Anthracothecium tetraspermum Riddle |
| Identification made in | [no date] (1), 2016 (1) |
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