426 HORTUS MORTOLENSIS 
ROsMARINUS. 
R. officinalis grows abundantly everywhere in the grounds. 
It varies a great deal in the colouring of its flowers. There is a 
tendency in some individuals to suppress the development of the 
stamens, so that the flowers become entirely female. The var. 
humilis has a prostrate habit with closely adpressed branches, 
and is, therefore, well adapted for covering walls and rocks. 
Roupata. 
Only R&. Pohlit multijuga is stillin the garden. R&R. De Jongh 
Hort., R. elegantissima Hort., R. corcovadensis Hort., and Rf. 
Verveneana Hort. were procured from Messrs. Veitch in 1905, 
but only lived a short time. 
RoYENA. 
Fi. lucida was introduced by seeds sent by Mr. Daniel Hanbury 
in September, 1871. With us it is a small densely branched bush, 
but in South Africa, where it grows on the Table Mountain and 
in Knysna forests, it reaches a height of 12-15 m. 
RULINGIA. 
Seeds of RB. corylifolia were received from Dr. Alfred Russel 
Wallace in 1905. 
SABAL. 
S. Adansoniw, a low-growing palm with creeping stem, was 
grown from seeds received from M. Thuret, Antibes, in February, 
1869. S. Blackburnianwm was bought from Prince Troubetzkoy 
in July, 1888. Itisnow 4m. high, with a stem of 2m. circumfer- 
ence at the base. S. wmbraculiferum is given as a synonym of 
S. Blackburnianum in Index Kewensis, and, in fact, the plants 
grown here as such do not seem to differ. Some fine specimens 
may be seen in Mr. L. Winter’s garden “Vallone,” near 
Bordighera. 
Besides these there occur in the gardens along the Riviera 
plants with the following names:—S. Palmetto, S. princeps, and 
S. serrulata, which apparently belong to S. Blackburmianum and 
S. Adansonit. 
SACCHARUM. 
The Sugar-cane, S. officnarum, has been tried several times, 
but never flourishes here. 
SALIX BABYLONICA. 
Was bought from Fratelli Rovelli, Pallanza, in April, 1877. It 
is planted near the water in the valley, and has grown into a fine 
tree. 
SALVIA. 
Most of the shrubby species from Mexico and the subtropical 
regions of South America are very showy during the winter. 
