| Name | Simmons, M. P. & Hayden, W. J. |
| Agent type | Team/Group |
| First date flourished | 1997 |
| ASA Botanist ID | 191086 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ebb879cf-0d2d-40dc-a071-252def01ae36 |
| Author name | M. P. Simmons & W. J. Hayden |
| B & P Author Abbrev. | M. P. Simmons & W. J. Hayden |
| Standard/Label Name | M. P. Simmons & W. J. Hayden |
| Full Name | Simmons, M. P. & Hayden, W. J. |
| Citation as Author | Brittonia; a Series of Botanical Papers. New York, NY |
| Team Members: | Simmons, Mark Pitkin Hayden, W. John |
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