 | Joel Roberts Poinsett was an American physician and diplomat. He was the first U.S. agent in... more » |
 | Johan Adam Pollich or Johann was a German doctor, botanist and entomologist. He studied medicine... more » |
 | Johan Ernst Gunnerus was a Norwegian bishop and botanist. Gunnerus was born at Christiania. He... more » |
 | Johan Martin Christian Lange was a prominent Danish botanist. He held the post of Librarian at... more » |
| Johan Peter Falk was a Swedish botanist and an apostle of Carl Linnaeus. His first name is... more » |
 | Johann Baptist Emanuel Pohl was an Austrian botanist, entomologist, geologist, and physician. more » |
| Johann Baptist Ziz was a German botanist from the Rhineland. The genus Zizia was named in his... more » |
| Johann Bartsch was a German physician, who graduated in the Netherlands at Leiden University in... more » |
 | Johann Bauhin was a Swiss botanist, born in Basel. He was the son of physician Jean Bauhin and... more » |
.jpg/209px-Johann_Centurius_Hoffmann_Graf_von_Hoffmannsegg_(1766–1849).jpg "Johann Centurius Hoffmannsegg") | Johann Centurius Hoffmann Graf von Hoffmannsegg was a German botanist, entomologist and... more » |
| Johann Christian Buxbaum, was a German physician, botanist and traveller. He was born in... more » |
 | Johann Christoph Volkamer was a German merchant, manufacturer and botanist. more » |
 | Johann David Schoepff, or Schoepf, or Schöpf, was a German botanist, zoologist, and... more » |
| Johann Friedrich Adam, later called Michael Friedrich Adams was a botanist from St. Petersburg,... more » |
 | Johann Friedrich Gmelin was a German naturalist, botanist, entomologist, herpetologist and... more » |
| Johann Friedrich Klotzsch was a German pharmacist and botanist. His principal work was in the... more » |
 | Johann Friedrich von Eschscholtz Johann Friedrich Eschscholtz was a Baltic German physician, botanist, zoologist and... more » |
.jpg/250px-Johann_Christoph_Lehmann_(6268902914).jpg "Johann Georg Christian Lehmann") | Johann Georg Christian Lehmann Johann Georg Christian Lehmann was a German botanist. Born at Haselau, near Uetersen, Holstein,... more » |
.jpg/188px-JJ_Haid_nach_WD_Majer_-_Johann_Georg_Gmelin_(Schabkunst_1760).jpg "Johann Georg Gmelin") | Johann Georg Gmelin was a German naturalist, botanist and geographer. more » |
| Johann Gerhard König was a Baltic German botanist and physician. He was born near Kreutzburg in... more » |
 | Johann Gottfried Zinn was a German anatomist and botanist member of the Berlin Academy. more » |
 | Johann Hedwig, also seen as Johannes Hedwig or Latinised as Joannis Hedwig, was a German... more » |
 | Johann Heinrich Friedrich Link Johann Heinrich Friedrich Link was a German naturalist and botanist. more » |
 | Johann Jacob Dillen Dillenius was a German botanist. Dillen was born at Darmstadt and was... more » |
| Johann Jacob Paul Moldenhawer was a German botanist who made a number of important discoveries... more » |
