 | Ralph Hoffmann was an American natural history teacher and amateur ornithologist and botanist... more » |
 | Ralph Sheldon Hosmer was Hawaii's first territorial forester, a contemporary of Gifford Pinchot... more » |
| Ralph Randles Stewart usually referred to as R. R. Stewart, was an American botanist who spent... more » |
 | Ralph Tate was a British-born botanist and geologist, who was later active in Australia. more » |
 | Randall James Bayer is an American systematic botanist, published mostly as "R.J. Bayer", who... more » |
| Raymond Piper HRUA HRHA MUniv was a botanist and artist born in London and at the age of six... more » |
| Rebecca Nelson, B.A. Swarthmore College, 1982, Ph.D. University of Washington, 1988. Professor... more » |
 | René Louiche Desfontaines was a French botanist. Desfontaines was born near Tremblay in... more » |
| René Paul Raymond Capuron was a French botanist. Capuron was responsible for an extensive amount... more » |
 | Richard Anthony Salisbury, FRS was a British botanist. While he is remembered as a valuable... more » |
| Richard Bradley FRS was an English naturalist specializing in botany. He published important... more » |
 | Colonel Richard Henry Beddome was a British military officer in India, chief conservator of the... more » |
 | Richard Hind Cambage was an Australian surveyor and botanist who made important contributions to... more » |
| Richard Hook Richens was a Director of the Commonwealth Bureau of Plant Breeding and Genetics at... more » |
| Richard Kolkwitz was a German botanist who was a native of Berlin. He studied natural sciences... more » |
| Richard Thomas Martin Pescott was an Australian botanist. Pescott was Director of the National... more » |
| Richard Sidney Richmond Fitter Richard Sidney Richmond Fitter was a British naturalist and author. He was an expert on... more » |
 | Richard Spruce was an English botanist. One of the great Victorian botanical explorers, Spruce... more » |
| Richard Thomas Baker was an Australian economic botanist, museum curator and educator. more » |
 | Richard Thomas Lowe was a British scientist, a botanist, ichthyologist, malacologist, and a... more » |
| Richard Weston was an English botanist. more » |
.jpg/225px-Richard_Wettstein_(1927).jpg "Richard Wettstein") | Richard Wettstein was an Austrian botanist. He introduced the phylogenetic system into... more » |
| Robert Bentley was an English botanist. He is perhaps best remembered today for the four-volume... more » |
 | Robert David FitzGerald was an Irish-Australian surveyor, ornithologist, botanist and poet. His... more » |
| Robert Desmond Meikle is an Irish botanist from the Royal Botanic Gardens, Kew. He became most... more » |
