| Name | Hammel, B. E. & Grayum, M. H. |
| Agent type | Team/Group |
| First date collected | 1989 |
| Remarks | [collector note: BM, BO, CANB, F, HBG, INB, KUN, L, LE, MEXU, MO, NY, P, PMA, TI, US, XAL] |
| ASA Botanist ID | 158512 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c06eab15-5921-44b7-9bbb-2db8b8aaaf80 |
| Standard/Label Name | B. E. Hammel & M. H. Grayum |
| Full Name | Hammel, B. E. & Grayum, M. H. |
| Geography Collector | Costa Rica |
| Specialty Collector | Phanerogams |
| Citation as Collector | Novon 12(4): 582. 2002 |
| Team Members: | Hammel, Barry E. Grayum, Michael Howard |