| Mr. Brown, on the Proteaceae 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 appeared in 1762: it contains two additional species of Leucadendron described from Burmannus's Collection and Plantæ Africanæ: Protea 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 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 probably accidentally seen, the antheræ if which are described as filaments, and their callous apices alone as true antheræ: the description of the second, L. pinifolium, is by Van Royen.
In the twelfth edition of Systema Naturæ published in the same year, the species of Leucadendron are arranged in a different, and, as the author intended, a more natural order; from which it may be concluded that at this time considerable additions had been made to his Herbarium: but L. glomeratum is unaccountably 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 |
