| Name | Egan, Robert Shaw |
| Date of birth | 1945 |
| Remarks | [author note: OMA: Lichens, especially Parmeliaceae] |
| ASA Botanist ID | 179218 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/637a8ba4-297f-4854-bc2b-ce99f0d34586 |
| Variant name | Robert Shaw Egan |
| Author name | Egan |
| B & P Author Abbrev. | Egan |
| Standard/Label Name | R. S. Egan |
| Full Name | Egan, Robert Shaw |
| Geography Author | United States of America |
| Specialty Author | Fungi and Lichens |
| Citation as Author | Authors of Plant Names. Royal Botanic Gardens, Kew |
| Citation as Author | Index Herbariorum. Part 1: The Herbaria of the World. Eighth Edition. Bronx, NY |
| Member of teams/groups | |
| Collector Teams: | S. Morgan & Egan T. L. Esslinger & R. S. Egan |
| Author Teams: | Esslinger & Egan |