96 BALFOUR—NEW SPECIES OF RHODODENDRON. 
Shrubs or small trees bearing oblong rounded to orbiculai 
‘leaves, obtuse or rounded at top, rounded or cordate at base, 
when mature usually convex above and often coated there 
with wax bloom and showing the submerged reticulate venation 
conspicuously on the under side, more or less glabrous but with 
vestiges particularly below and on the petiole of juvenile short- 
stalked glands or sebaceous hairs; pedicels glandular; calyx 
large or small glandular; corolla 5-lobed open campanulate 
or deep saucer-shaped glabrous inside; stamens Io unequal 
glabrous or puberulous; ovary glandular and style glandular. 
The following table gives the names and distribution (with 
name of the discoverer) of the species that seem to fall into the 
series :— 
Rh. Bonvaloti, Bur. et Franch. W. Szechwan:  Tatsienlu. 
(1891) (Pr. Henri d’Orleans and 
Bonvalot.) 
Rh. callimorphum, Balt. f. et W. Yunnan: Shweli-Salween 
W. W. Sm. (1917). divide, 10,000 ft. (Forrest.) 
Rh. campylocarpum, Hook. f. Sikkim: Bhutan, 11,000- 
(1849). 14,000 ft. (Hooker f.) 
Rh. cordatum, Léveillé (1914). N.E. Szechwan: Io Chow, 
: 10,500 ft. (Maire.) 
Rh. croceum, Bali. f. et W. W. E.N.W. .%unpan: cin -N.E. 
Sm. (1917). of Yangtze bend, 11,000— 
14,000 ft. (Forrest.) 
Rh. dasycladwm, Balf. f. et E.N.W. Yunnan: In N.E. of 
W. W. Sm. (1917). Yangtze bend, 12,000 ft. 
(Forrest.) 
Rh. puralbum, Balf. f. et E.N.W. Yunnan: In N.E. 
W. W. Sm. (1916). of Yangtze bend, 11,000- 
14,000 ft. (Forrest.) 
Rh. Souliet, Franch. (1895). W. Szechwan : Tatsienlu, 
10,000-12,000 ft. (Soulié.) 
Rh. Wardit, W. W.Sm. (1914). . S.E. Tibet: Doker La, 13,000- 
14,000 ft. (Ward.) 
Rh. Williamsianum, Rehd. et W. Szechwan: Wa-shan, 
Wils. (1913). S.E. of Tatsienlu, 8000 it. 
(Wilson.) 
If this be a natural phylum its name should be Campy- 
locarpum after the longest known species. I say if, because 
whilst the species have a marked resemblance and have more 
or less developed the technical character of a glandular style, 
the longer thin curved capsule of Rh. campylocarpum is very 
different from the short more nearly straight capsule of Rh. 
Wardit and Rh. Williamsianum, and those are the only fruits I 
