Mr. Brown, on the Proteacee of Jussieu. 41 
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 diipeared in 1762: 
contains two additional species of Leucadendron described si 
Burmannus’s Collection and Plante Africane: Protea argentea 
of the first edition is here divided into two species; the first 
Protea argentea now so called, the second comprehending P.sa- 
ligna, conifera, and three other nearly related species: to this latter 
the greater part of the observation 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 ‘species of 
Leucadendron are described : neither of these; however, he had 
in his Herbarium: the first, Leucadendron speciosum, he had pro- 
bably accidentally seen, the anthere of which are described as 
filaments, and their callous apices alone as true anthere: the 
description of the second, L. pinifolium, is by Van Royen. _ 
In the twelfth edition of Systema Nature published in the 
same year, the species of Leucadendron are arranged in a diffe- 
rent, and, as the author intended, a more natural order; from 
which it may be concluded that at this time considerable addi- 
tions had been made to his Herbarium: but L. glomeratum is un- 
accountably omitted. Protea here receives again P. Levisanus, 
the P. fusca of the first edition of the Species Plantarum, which 
in the second had been referred to Brunia. 
In Mantissa altera published in 1771, the two genera are 
united under the name of Protea; new characters are given to 
; VOL. X. G ; the 
