Isotype of Philadelphus zelleri S.Y. Hu [family HYDRANGEACEAE] Philadelphus zelleri Sanford M. Zeller & E.B. Zeller, #974 1917-06-25 - 1917-08-01 United States
Isotype of Philadelphus zelleri S. Y. Hu [family HYDRANGEACEAE] Philadelphus zelleri S. Zeller; E. B. Zeller, #974 1917-06-25 - 1917-08-01 United States