following interesting particulars of his mode of treating the 
lant :-— 
“In January, 1852, I selected from our woods a vigorous 
plant of Rhododendron Ponticum, with a clean straight stem, 
about six feet high, removing all the lateral branches, and 
potting in an eight-inch pot. About the end of January it 
was placed in the stove, where it was soon after inarched with 
hk. Dalhousie. As the young shoot of the latter began to 
harden, it was gradually cut through till separated, and the 
plant was removed to a cool greenhouse to rest. It very soon 
showed symptoms of making another growth, when it was trans- 
ferred to the stove, to ripen its wood preparatory to its being 
again put into a cool house as the shoot ripened. Here it did 
not remain long before it made further progress, and again re- 
quired the heat of the stove to ripen its third growth. About 
the end of October a flower-bud was formed, when water was 
gradually withheld until it was moderately dry at the roots, and 
the plant was removed to a cool greenhouse for the entire winter. 
About the third week in February, 1853, it was placed in the 
stove, and began to show colour on the 16th of this month. 
When the flowers first appeared they were of a greenish colour, 
which gradually changed into a yellow, which also has died 
away, until it is of the colour of the flower sent, and I have no 
doubt but ere the flower drop it will be nearly white (as repre- 
sented in our plate). I may also state, that the plant has never 
been exposed out of doors: had it been so, the rusty colour on 
the upper surface of the leaf would very likely have been re- 
moved. ‘The bark on the first shoot or growth is of a brown 
colour; but the other two growths are yet green, as shown in 
the sketch.” 
Rk. Dalhousie is a native of East Nepal, Sikkim, and Bhotan 
(Griffith Herb.), at elevations of from 6000 to 9000 feet, in 
humid forests. 
Drscr. ‘A straggling shrub, six to eight feet high ; the stems 
clothed with a reddish, papery dark; the branches straggling, in 
distant whorls, each branch bearing its leaves and flowers only 
at the extremity.” Hook. fil. Young branches stout, greenish. 
Leaves four to five inches long, spreading, rather rigid, subco- © 
riaceous, elliptical or nearly so, obtuse with a sudden point or 
mucro, a little waved, hairy when young, according to Dr. 
Hooker; in our plant pubescent, with rusty deciduous down ; 
fully-formed leaves glabrous, dark-green, and naked above; — 
deeply impressed with the pinnated veins, beneath glaucescent, 
and dotted with minute rusty-coloured scales. Pedéoles short, 
rather thin. Bracteas very deciduous. Flowers terminal, three 
to five, subumbellate, very large, fragrant. Peduncles one and a 
half to two inches long. Calya deeply five-parted, the /odes ob- © 
