| Name | Ceratodon purpureus f. xanthopus (Sullivant, W. S. & L. Lesquereux) E. Britton ex Grout |
| Authorship | (Sullivant, W. S. & L. Lesquereux) E. Britton ex Grout |
| Rank | Forma |
| Placed in | Ceratodon purpureus (Hedwig) Bridel |
| Citation | 1936 Moss Fl. N. Amer. 1: 41 |
| Holdings | 20 Specimens held in the Harvard University Herbaria identified as Ceratodon purpureus f. xanthopus (Sullivant, W. S. & L. Lesquereux) E. Britton ex Grout |
| Identification made in | [no date] (20) |
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