BALFOUR—NEW SPECIES OF RHODODENDRON. 223 
parvis ad basim loborum corollae exsertis. Ovarium in triente 
inferiore laete viride et pilis paucis vestitum supra dense lepi- 
dotum ; stylus brevis ovario paullo longior staminibus multo 
brevior purpureus glaber; stigma atro-purpureum lobulatum. 
Capsula circ. 3 mm. longa rufo-brunnea basi calyce inclusa 
lepidota ab apice ad basim valvis 5 dehiscens. 
Species Rh. intricato, Franch. similis sed foliis subtus fer- 
rugineis squamis discontiguis uniformibus corollaque extus 
elepidota notata. 
Yunnan. Open stony pasture on the Chungtien plateau. 
Lat. 27° 30’ N. Alt. 11,000-12,000 ft. Matted shrub of 1-2 ft, 
Flowers deep rose purple. G, Forrest. No. 12,520. June 1914. 
An interesting species which shows us a stage somewhat inter- 
mediate between the Lapponicum series and the Fragrans and 
the Cephalanthum series. Rh. complexum by habit and indu- 
mentum is one of the set within the Lapponicum series which 
have truly discontiguous under-leaf indumentum with brown im- 
pressed scales on a mat green ground, while the leaves are small, 
dark green above, such as we find in Rh. impeditum, Balf. f. et 
W. W. Sm. and in Rh. scintillans, Balf. f£. et W. W. Sm. But 
in flower it differs. The corolla tube is here elongated, much 
ventricose at base, and the limb spreads out from it often nearly 
flat. Within the long tube the stamens and style are concealed. 
The anthers just reach to the mouth of the tube. The style 
is much shorter than the stamens and only a little longer than 
the ovary. The whole flower construction recalls Rh. intricatum, 
Franch. where we find precisely the same relationships, but 
in vegetative features Rh. intricatum is very different from Rh. 
complexum. Its under-leaf indumentum is shining grey or 
yellowish grey with contiguous scales, and the upper leaf surface, 
owing to the scale vestiges, is somewhat hoary. The diver- 
gence of flower character of which I speak has therefore taken 
place more than once in the phyletic history of the series. I 
have preferred to retain Rh. complexum as well as Rh. intricatum 
in the Lapponicum series. Although they have a corolla so 
different from that in the rest of the series it never develops 
the copious beard of the Fragrans series and Cephalanthum 
series. And then the under-leaf indumentum of Rh. complexum 
is unknown in these other series, nor, indeed, is that of Rh. intrica- 
tum found there although the resemblances are greater in its case. 
See also p. 299. 
Qo” Rhododendron cremnophilum, Balf. f. et W. W. Sm. 
Suffrutex pumilus ad 6 dm. altus parvifolius tortuose ramosus. 
. 
Ramuli annui brevissimi circ. 5 mm. longi hornotini squamis 
peltatis stipitatis citrinis lepidoti biennes fulvi triennes squamis 
B 
