leniu 



s stated that all the genera so marked were wr 



ongly de- 



bed. 



The first example he pointed out, if I am not 



mistaken, 



i Cat 



ma, placed by Linnaeus in his first class, whicl 

 with but one stamen. Botanists before this 



time had 



cribe 



d it as having three stamens. To settle the dis 



spute they 



it o. 



at into the garden and the living plant she 



wed that 



Linnaeus was correct. Dillenius then retained Linnaeus for 

 several days and found that the older botanists in most cases 

 were at fault and the young Swede correct. From being an 

 opponent, he became a friend of Linnaeus and let him have all 

 the plants he wanted. 



After his return to Holland Linnaeus continued his work in 

 Clifford's garden with renewed zeal ; and completed his " Hortus 

 Cliffortianus," a large folio, in which are enumerated and de- 

 scribed all the plants found in Clifford's collections, together with 

 synonyms and citations of nearly all botanical works then in ex- 

 istence. In preparing this work he became thoroughly 

 acquainted with almost all the literature referring to American 

 botany, such as Morison's " Plantarum Historia," Plukenett's 

 "Almagestrum Botanicum " and " Phytographia," Petiver's 



After completing the "Hortus Cliffortianus," Linnaeus re- 

 turned to Leyden, where he spent some time helping Gronovius 

 with the editing of his " Flora Virginica," based on a large col- 

 lection of plants collected by Clayton. Here again he came in 

 contact with American plants. 



Linnaeus then returned to Sweden and became a practicing 

 physician. He was soon appointed Professor of Medicine at 

 Upsala, but by common agreement he exchanged chairs with 

 Rosen, who held the professorship of Botany. He now began 

 work upon the most important book of his life, his " Species 

 Plantarum." In this he tried to include a short description of 



