| Name | Hagen, Ingebricht Severin |
| Date of birth | 1853 |
| Date of death | 1917 |
| Remarks | [collector note: Original herbarium: TRH; Norway: BP, NY, TRH, TROM; Musci norvegici (1885-1903): B, BR, C, H, L, O, PC, TROM] |
| ASA Botanist ID | 122920 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/2155621f-c1f4-4fc4-92d6-ab7d837cce3c |
| Standard/Label Name | I. S. Hagen |
| Full Name | Hagen, Ingebricht Severin |
| Geography Collector | Norway |
| Citation as Collector | Index Herbariorum - Collectors E-H |
| Member of teams/groups | |
| Holdings | Search for specimens collected by I. S. Hagen |
| Collections in | [no date] (1), 1893 (4), 1903 (1), 1904 (1) |
| Collector Teams: | E. Ryan & I. S. Hagen |
| Author Teams: | Ryan & I. Hagen |
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