 | Peter Hamilton Raven is a botanist and environmentalist, notable as the longtime director, now... more » |
 | Peter Simon Pallas was a German zoologist and botanist who worked in Russia. more » |
 | Dr. Philibert Commerçon was a French naturalist, best known for accompanying Louis Antoine de... more » |
 | Philip A. Munz, botanist, taxonomist and educator, of the Rancho Santa Ana Botanic Garden, was... more » |
 | Philip Barker-Webb FRS was an English botanist. Born to a wealthy, aristocratic family,... more » |
 | Philip Miller FRS was a Scottish botanist. Miller was chief gardener at the Chelsea Physic... more » |
 | Philipp Franz Balthasar von Siebold was a German physician, botanist, and traveler. He taught... more » |
 | Philipp Friedrich Gmelin was a professor of botany and chemistry. He studied the chemistry of... more » |
 | Philippe Édouard Léon Van Tieghem Philippe Édouard Léon Van Tieghem was a French botanist born in Baillleul in the département of... more » |
 | Pier Andrea Saccardo was an Italian botanist and mycologist. more » |
 | Pierre-Antoine Poiteau was a French botanist, gardener and botanical artist. more » |
| Pierre Boitard was a French botanist and geologist. As well as describing and classifying the... more » |
 | Pierre Edmond Boissier was a Swiss botanist, explorer and mathematician. He was the son of... more » |
 | Pierre Gaspard Chaumette was a French politician of the Revolutionary period. more » |
.JPG/274px-Grenadier_(Turpin).JPG "Pierre Jean François Turpin") | Pierre Jean François Turpin was a French botanist and illustrator. He is considered one of the... more » |
| Pierre-Joseph Buc'hoz Paris was a French physician, lawyer and naturalist. Buc'hoz become a... more » |
| Pierre Joseph Garidel was a French botanist. more » |
 | Pierre Magnol was a French botanist. He was born in the city of Montpellier, where he lived and... more » |
 | Pierre Nicolas Le Chéron d'Incarville was a French Jesuit and amateur botanist. He was a... more » |
 | Pierre Paul Dehérain is notably the doctoral advisor of the Nobel Prize winner Henri... more » |
 | Pierre Sonnerat was a French naturalist and explorer. Sonnerat was the nephew of the botanist... more » |
.jpg/200px-Alexis_Millardet_(par_Leroux-Veunevot).jpg "Pierre-Marie-Alexis Millardet") | Pierre-Marie-Alexis Millardet was a French botanist and mycologist born in Montmirey-la-Ville. He... more » |
 | Pietro Andrea Gregorio Mattioli was a doctor and naturalist born in Siena. He received his MD at... more » |
 | Pietro Castelli was an Italian physician and botanist. Born at Rome, he was graduated in 1617... more » |
 | Gaius Plinius Secundus, better known as Pliny the Elder, was a Roman author, naturalist, and... more » |
