88 
O. tomentosa, DCU. Prodr. vol. v. p. 252 (1886). 
Folia plerumque obovata, subintegra vel undulata; involucri 
bracteae dense et molliter tomentosae.—Aster tomentosus, Schrad. 
in Wendl. Sert Hann. 8, t. 24 (1798). Olearia dentata, Benth. 
Fl. Austral. vol. iii. P- , partim; non Moencl 
Distris.—New South Wales: Port Jackson, Baath ads KR. 
Brown 2231. 
Cultivated in the Hanover Garden i in 1798; Schrader (l.c.) gives 
the habitat as ‘‘ Caput bonae spei,’’ but this was no doubt a mis- 
take. The species was grown outdoors in the Scilly Islands in 
1872, and it probably still grows there, for the cultivated plants 
in the Temperate House at Kew were obtained from Major 
Dorrien Smith in 1911 under the name O. dentata, 
The species of Olearia are best classified by the structure of 
the hairs on the under-surface of the leaves, the different types of 
hairs being simple, Page) stellate, woolly, o viscid, and the 
groups defined in this way are remarkably natural and easily 
recognised. Both the species under discussion Bae the T-shaped 
. elled hairs which are characteristic of the section Dicerotriche. 
n O. dentata the branches of the hairs are very long with the 
ae about half as long, whilst 1 in O. tomentosa the branches are 
ot so long and the stalk is scarcely a quarter of their length. 
J. H. 
