^f)t l^bo^obrntiron ^oeietp ^otesi 
series—some 3-3.5 cm. long, and is nine-lobed, and the stamens, 18, with 
puberulous filaments are short, about half the length of the corolla. The 
10-chambered ovary is tomentose with short besom-Uke hairs. 
The grey indumentum and the character of its hairs, the conspicuously 
puberulous stamens, the 10-chambered ovary with short besom-shaped hairs, 
separate this species from R. basilicum, which to first observation it resembles. 
The plant is not in cultivation. 
Rhododendron Rex, LeveilU. 
This as the name of a Rliododendron wall be new probably to most Members of 
the Society. Tlie species was indicated—one can hardly say described—in his 
customary fashion by Leveille, in Tedde’s Repertorium for lOl-l, based upon 
specimens collected in May, 1911, at an elevation of 3,200 m., on Mount lo-chou, 
in N.E. Yunnan, by Maire, who writes of it as a tree 4-5 m. high, bearing 
rose-coloured flowers. I should have had difficulty about confirming or otherwise 
criticising Leveille’s determination but for the munificence of Mr. A. K. Bulley 
and Major Lionel de Rothschild who purchased Le\'eille’s Herbarium after 
his death this year (1919) and generously presented it to the Royal Botanic 
Garden. Examination of the type in Leveille’s Herbarium enables me to say 
R. Rex is a distinct species, the most easterly of the knowm members of the 
Falconer! Series. Its rugulose leaves some 25 cm. long, 8 cm. broad, recall by 
their colouring and by the grey underleaf indumentum those of R. coriaceum, 
but do not taper so markedly to the base and are broader. It is a close ally of 
this species. The cup-hairs of the indumentum are more or less bowl-shaped 
with nearly isodiametric cells in the walls, but the cup-margin is distinct^ 
though shortly fringed. The cups are quite easily seen as separate pits on the 
leaf-surface as they are in R. coriaceum. The flower-truss is large, of over 
20 flowers, the eight-lobed corolla is long, nearly 5 cm., and more tubular- 
campanulate than in R. coriaceum, but as there it has a basal blotch and many 
crimson spots spreading upwards from it, and the 16 stamens w'hich have puberu¬ 
lous filaments are nearly twice as long as those of R. cori.aceum, and the style 
is in like case. The ovary in the two species is small and has few (here nine) 
large chambers separated by thin septa. The hairs on the outside of the ovary 
are floccose, with a long pluricellular stalk, from top of which many erect pointed 
branches arise in a close tuft, and whilst of the tj-pe of those in R. coriaceum 
are different from them. 
These two species, R. cori.\ceum and R. Rex, are evidently w'estern and 
eastern forms of one strain within the Falconer! Series. R. Rex is not in 
cultivation. 
Rhododendron sinofalconeri, Balf. f. 
{syn. R. Falconeri, Hemsley et Wilson]. 
This, the second earliest to be discovered—althougli not recognised and de¬ 
scribed until long afterwards—of the Chinese species of the Falconeri Series, 
was found by Henry before 1898, in forests at an elevation of 9,000 feet, on the 
summit of mountains north of Mengtsz, in S.E. Yunnan. There is no certain 
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