| Name | Olsson-Seffer, Pehr Hjalmar |
| Date of birth | 1873 |
| Date of death | 1911 |
| Remarks | [author note: Herbarium and types unknown. Also travelled in Polynesia. Killed by Mexican revolutionaries] [collector note: Santa Gruz Mts. (W. Calif., col. 1903-04): CAS, DS] |
| ASA Botanist ID | 105066 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ff4884ba-e9aa-4fc3-ae8c-2d3298cccc96 |
| Variant name | Pehr Hjalmar Olsson-Seffer; until 1903, P. H. Olsson |
| Author name | Olsson-Seffer |
| B & P Author Abbrev. | Olss.-Seff. |
| Standard/Label Name | P. H. Olsson-Seffer |
| Full Name | Olsson-Seffer, Pehr Hjalmar |
| Geography Author | Australia (Country), Finland, Mexico, United States of America |
| Geography Collector | United States of America |
| Specialty Author | Spermatophytes |
| Citation as Author | Authors of Plant Names. Royal Botanic Gardens, Kew |
| Citation as Author | Taxonomic Literature. Second Edition. Utrecht |
| Citation as Collector | Index Herbariorum - Collectors N-R |
| Holdings | Search for specimens collected by P. H. Olsson-Seffer |
| Collections in | 1910 (1) |
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