| Name | Sawyer, John O. |
| Start Date | 1939 |
| End Date | 2012 |
| Remarks | [author note: HSC: Woody plants, vegetation of n. California] collector note: HSC] Example of Name Published: Rhamnus tomentella subsp. crassifolia (Jepson) Sawyer, Madrono, 40(1): 65. 1993. |
| ASA Botanist ID | 165361 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/38319095-c1f0-4f71-9fdf-a52ee1ca6188 |
| Variant name | John O. Sawyer |
| Variant name | Sawyer, John O., Jr. |
| Author name | Sawyer |
| B & P Author Abbrev. | Sawyer |
| Standard/Label Name | J. O. Sawyer |
| Full Name | Sawyer, John O. |
| Geography Author | United States of America |
| Geography Collector | United States of America |
| Specialty Author | Spermatophytes |
| Citation as Author | Madrono 40: 65. 1992 |
| Citation as Author | Index Herbariorum. Part 1: The Herbaria of the World. Eighth Edition. Bronx, NY |
| Citation as Author | Death year from: Patricia Kern Holmgren (NY) |
| Member of teams/groups | |
| Collector Teams: | J. O. Sawyer & S. W. Edwards |
| Author Teams: | Sawyer & S. W. Edwards |
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