Authors
Hermann W. Pfefferkorn (Pfefferk.) *1940
Kelly C. Pfeiler (Pfeiler) fl. 2018
Hans D. Pflug (H.D.Pflug) fl. 1978
Kasey K. Pham fl. 2020
Marc Philippe (Marc Philippe) *1969
Harry Kenyon Phinney (H.K.Phinney) *1918 - †1990
Julius von Pia (Pia) *1887 - †1943
Martin Pickford (M.Pickford) fl. 2021
Kenneth M. Piel (Piel)
Pierre J.A.G. Piérart (Piérart) *1927 - †2010
Richard LeRoy Pierce (R.L.Pierce) *1926 - †1983
Kathleen B. Pigg (Pigg) *1958
Georg Pilar (Pilar) *1847 - †1893
Lucie Pille (Pille)
Juan Pablo Pino (J.P. Pino)
Jerald B. Pinson (Pinson) fl. 2018
María Laura Pipo (Pipo) fl. 2020
Etiene Fabbrin Pires (E.F.Pires) fl. 2016
Paola Pittau (Pittau) fl. 2018
Eva Planderová *1932 - †1992