40 Mr. Brown, on the Proteacea of Jtissieu. 



page he has given the name of Santolina. These facts are men- 

 tioned to prove, that at this period his knowledge of the family 

 must have been chiefly derived from Boerhaave's figures, and 

 perhaps from specimens which he had casually seen. 



In 1748 the sixth edition of Systema Naturae appeared, where 

 the essential characters of Protea and Leucadendron first occur, 

 both of them evidently derived from the natural characters pre- 

 viously given. 



In 1753 the Species Plantarum, the most accurate of all his 

 works, was given to the world; both genera are found in it, their 

 species characterized, and trivial names for the first time applied 

 to them : of Protea there are only two species, P. argentea and 

 fmca ; to the former however he referred as varieties P. saligna, 

 conifera, and three others ; to the whole adding the following ob- 

 servation, which may be supposed to contain his chief reason 

 for applying his name Protea to this genus rather than to that 

 for which in his Classes Plantarum he had first intended it. 

 ^' Planta naturalis in patria argentea excellit fronde inter arbores 

 nitidissima omnium ; at culta et captiva extra patriam exuit 

 decus; variat dein etiam domi mille modis verfe PVotea." 



At this time he had in his Herbarium a specimen without 

 fructification of Protea argentea properly so called ; but of its 

 supposed varieties or of P. fusca none whatever. Of his genus 

 Leucadendron he had only one species, L. proteoides, afterwards 

 called Protea purpurea, a plant differing in many respects from the 

 tribe to which he had, though not without hesitation, referred it. 



In 1754 the fifth edition of Genera Plantarum appeared, in 

 which the characters of both genera remain exactly as in the 

 second. 



In 1759 was publishd the tenth edition of Systema Naturae, 



where 



