ON THE PROTEACEjE OF JUSSIEU. 27 



in it, their species cliaracterised, and trivial names for the 

 first time applied to them : of Protea there are only two 

 species, P. argentea and fusca ; to the former however he 

 referred as varieties P. saligna, conifera, and three others ; 

 to the whole adding the following observation, 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 vere Protea." 



At this time he had in his Herbarium a specimen with- 

 out 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 dif- 

 fering 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 published the tenth edition of System a 

 Naturae, where the essential generic characters are nearly [« 

 the same as in the sixth, and the specific characters are 

 copied from the Species Plantarum. 



Of this latter work the second edition appeared in 1762 : 

 it contains two additional species of Leucadendron described 

 from Burmannus's Collection and Plant* Africanse; Pro- 

 tea argentea of the first edition is here divided into two 

 species ; the first Protea argentea now so called, the second 

 comprehending P. saligna, conifera, and three other nearly 

 related species : to this latter the greater part of the obser- 

 vation added to P. argentea of the first edition is annexed, 

 though evidently less applicable to the species thus divided. 



In the sixth edition of Genera Plantarum printed in 

 1764 no alterations are made in the characters of these 

 two genera. 



In Mantissa prima published in 1767, two new spe- 

 cies of Leucadendron are described : neither of these, how- 



