| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Hibiscus bicalyculatus Merr. | Ahern's collector 2450 Jan 1905 | Philippines. Rizal. Montalban, Luzon. | isotype | 221756 |  |
| Hibiscus bicalyculatus Merr. | E. D. Merrill 5042 | Philippines. Rizal. Montalban, Luzon. | 04334365 |  | |
| Hibiscus bicalyculatus Merr. | R. S. Williams 1554 | Philippines. Benguet. Between Baguio and Sabian, Northern Luzon. | 04334363 |  | |
| Hibiscus bicalyculatus Merr. | A. D. E. Elmer 8921 | Philippines. Benguet. Baguio, Luzon. | 04334364 |  |
