Karl Friedrich Wilhelm Wallroth

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Karl Friedrich Wilhelm Wallroth (13 March 1792 in Breitenstein, Saxony-Anhalt - 22 March 1857 in Nordhausen) was a German botanist. His name is abbreviated Wallr. as a taxon authority.[1]

He attended classes in medicine and botany at the University of Halle, afterwards continuing his studies in Göttingen, where he was a pupil of botanist Heinrich Adolf Schrader (1767-1836). In 1816 he obtained his medical doctorate at the University of Göttingen. In 1822 he was appointed district physician to the city of Nordhausen, where along with his duties as a doctor, he performed botanical research.[2]

Among his writings were a treatise on cryptogams native to Germany- Flora Cryptogamica Germaniae (1831-1833), and a study on the biology of lichens, titled Naturgeschichte der Flechten (1825 & 1827). He is credited for introducing the terms "homoiomerous" and "heteromerous" to explain two distinct forms of lichen thallus.[3][4]


  1. ^ http://www.aluka.org/action/showMetadata?doi=10.5555%2FAL.AP.PERSON.K1409 Aluka biography
  2. ^ Biography @ Allgemeine Deutsche Biographie
  3. ^ SCHLECHTENDALIA 23 Lichenology in Germany: past, present and future
  4. ^ Lichens by Annie Lorrain Smith
  5. ^ "Author Query for 'Wallr.'". International Plant Names Index.