tBf)e ^fjobotienbron ^ocietp ^otes;. 
Rhode, light-yellow in colour with green spots in the throat. Regal in his note 
on this Rhode, appears to draw distinctions between flavidum, stramineum, and 
chrysanthum. 
Maund’s “ Botanic Garden,” Vol. X., contains plates of Rhododendron 
caucasico-ponticum, 903, which represents a white flower with pink spots, and 
Rhododendron caucasicum, 947, having much the same flowers, only spotted 
yellow. 
From Nicholson. 
“ Rh. CAUCASicuM=rose coloured outside, white within, spotted green at 
the throat. August (flowering ?), height 1 ft. Caucasus, 1803, B.M., 1145. 
” Rh. C. flavidum (yellowish flowered), fl. straw colour, spotted with green.” 
” C. Stramineum (straw coloured), fl. straw colour, fulvous coloured within 
(oblong 3422).” 
Paxton, Vol. II., p. 231, date 1836. 
‘‘ Rh. caucasicum and its two varieties usually grow from 2 to 3 ft. high, 
but rarely exceed 2 ft., except in very favourable situations.” 
Bot. Mag., Vol. XXVII., plate 1145, date 1808. 
” Rh. caucaseum. A low shrub, branches spread on the ground, nearly 
naked, the leaves as well as the flowers being chiefly on the assurgent extremities 
. . . Leaves ovate, quite entire with margins rolled back . . . roughish on the 
upper surface and covered with a fine pale rust coloured down underneath . . . 
having a weak scent of sweet briar when rubbed. ...” 
There is so great an affinity between this species and Rhododendron 
chrysanthum, that Pallas seems to doubt if they ought not to be considered 
mere varieties. It is a native of the most elevated parts of Mount Caucasus, on 
the verge of the regions of perpetual snow. 
Mr. Loddiges informs us that (Rh. caucaseum) it is far less shy than 
Rhododendron chrysanthum, which although it has been much longer in his 
possession, he has never been able to flower but very imperfectly. 
_Bot. Mag., plate 3422, date 1835. 
” The Rhododendron Caucasicum would appear to be subject to so much 
variation in the size and colour of the flowers if we judge from the only figures I 
am acquainted with, that in the ” Flora Rossica,” and that in the ” Botanical 
Magazine ” ; in the former which we may consider as the colour of the flowers 
of the native plant, they are comparatively small, and entirely of a delicate 
pink or rose colour ; in Curtis’s figure they are as large as those of Rh. arboreum, 
pure white within, spotted with green and tinged with a deep shade of blush on 
the outside.” 
” In our Glasgow Botanic Garden, and some other collections in Scotland, 
there is cultivated as the Caucasicum, the extremely beautiful variety here 
figured than which I can conceive no plant more desirable or more ornamental 
for an American border or shrubbery. At this (April, 1835), notwithstanding a 
most unpropitious spring, our bushes, one of which is two feet high and three feet 
6 
