3l&tlcitio!Dentiron ^octetp ^oitn. 
And those that came through without damage were:— 
R. AMBIGUUM, R. Amesi^, R. calophytum, R. concinnum, R. Davidii, 
R. Davidsonianum, R. decorum, R. discolor, R. flavidum, R. Hanceanum, 
R. MOUPINENSE, R. OREODOXA, R. RUBIGINOSUM, R. SeARSI^E, R. SINENSE, 
R. Shelton^, R. Souliei, R. strigillosum, R. sutchuenense,;R. Weldianum, 
R. WiLTONII, R. YANTHINUM. 
Of the older Himalayan Rhododendrons :— 
R. CINNABARINUM, R. BARBATUM, R. CAMPYLOCARPUM, R. CAMPANULATUM, 
R. Thomsonii, and a hybrid produced many years ago by Cunningham & Fraser, 
of which R. Thomsonii is the dominant parent, have proved perfectly hardy, 
while R. Falconeri, R. niveum, R. ciliatum, R. arboreum var. CAMPBELLiiE, 
R. GLAUCUM, all suffered to some extent, but R. argenteum and R. Keysii 
were killed outright, as was only to be expected. Contrary to my expectations, 
however, R. Hodgsonii seems to be as hardy at Dawyck, even in its early 
stages, as any Rhododendron we have. 
The Japanese and Korean species do not find our climate to their liking, and 
there were more casualties than survivors among the following species from 
those regions :— 
R. Albrechtii, R. dilatatum, R. K^mpferi, R. ledifolium, R. 
Metternichii, R. Schlippenbachii. 
I have a considerable number of wild lifted American Azaleas which have 
been established for several years and all flower freely :— 
R. ARBORESCENS, R. CALENDULACEUM, R. CANESCENS, R. NUDIFLORUM, 
R. Vaseyi, R. viscosum, but all these are surpassed by R. occidentale which 
never fails to make a fine show of blossom. 
It may not be out of place to add in conclusion that no ericaceous plants 
seem to be better suited to the severities of our climate than the genus 
Enkianthus, of which I have several species, including large plants of 
E. campanulatus, which are never injured by early or late frosts and flower 
abundantly every year. 
F. R. S. BALFOUR. 
nth December, 1917. 
163 
