^fjobotjenbron Motti. 
The Garden, October Ibth, 1881. 
On the hardiness 
of Himalayan 
Rhododendrons. 
The paper (by Mr. Mangles), published in The Garden, 24th September 
last, is very interesting ; and as I have taken much pleasure in cultivating and 
hybridising Rhododendrons for about twenty-five years, especially with a view to 
acclimatize those of Sikkim and Bhotan, I think the results at which I have 
arrived may be acceptable to some of your readers. In order to avoid occupying 
too much space, I shall first give the names, as furnished to me, of those varieties 
which I have found perfectly hardy trees without the slightest protection, 
although some of those which bloom early (about March), have their flowers 
occasionally spoiled by the spring frosts:— 
ALPINUM 
^RUGINOSUM 
Anthopogon 
ARBOREUM ALBUM 
ROSEUM, very beautiful 
NEPALENSE 
BARBATUM, magnificent 
CALYCULATUM 
CAMELLI.EFLORUM 
CAMPANULATUM 
Campbelli.® 
CAMPYLOCARPUM 
CILIATUM 
CINNAMOMEUM 
CINNABARINUM 
CRISPIFLORUM, not bloomed 
EXiMiUM, fine, like 
Falconeri 
Falconeri, grand 
FULGENS 
ARGENTEUM, much injured, growing 
well, not bloomed yet. 
Aucklandii, much injured, growing 
well, bloomed well, 1878, 1879, 1880. 
calophyllum, apparently killed, but 
growing well. 
*Dalhousi^, do not give this up. 
♦Edgeworthii, I do not give this up. 
FORMOSUM (Gibsonii), much injured, 
but growing well. 
Jenkinsii, much injured, doing well, 
never injured in 20 years previous. 
Falconeri superbum, not 
bloomed 
GLAUCUM 
Hodgsonii, grand, has not yet 
bloomed 
Hooke Ri 
Keysei 
LANATUM 
LANciFOLiUM, not bloomed 
Metternichii 
Massangei, beautiful bloom this 
year 
NIVEUM 
NOBILE, a grand plant, never 
bloomed 
OCHRACEUM 
Roylei 
VIRGATUM. 
Wallichii, I think same as niveum. 
WiGHTii, I think not true 
Those marked * I 
Kendrickii, I doubt its name. 
LONGiFOLiUM, much injured, growing 
well, has not bloomed. 
“ Lindleyanum,” much injured, 
growing well. 
Maddenii, much injured, growing well 
(I see no essential difference between 
this and Jenkinsii ; centre of 
Jenkinsii flower rose, of Maddenii, 
yellow). 
NILAGHIRICUM, not bloomed, much 
injured. 
The following were more or less injured last spring, 
have not yet succeeded in acclimatizing. 
112 
