plant differs in its much more densely glandular leaves, the 
under surface of which has in consequence a decidedly 
rusty and rather dirty look, while the upper surface is 
usually conspicuously marked with black glands of con- 
siderable size. In cultivation at Kew R. siderophyllum 
grows very well, and although rather thinly furnished 
with leaves, it flowers very freely and is quite hardy. 
The plant from which the material for our illustration 
has been derived was raised from seeds collected by 
Mr. E. H. Wilson and received at Kew in the spring of 
1909. Certain plants grown by Messrs. Veitch in their 
Coombe Wood nursery under the name PR. siderophyllum 
belonged, so Messrs. Rehder and Wilson now find, to the 
species they have named &. Davidsonianum. There is, 
consequently, some confusion in gardens between these 
two species which it is hoped that a study of the present 
plate and of the plate referred to above may help to 
clear away. 2 
Descriprion.—Shrub of open habit; twigs rather sparingly leafy, beset 
upwards with sessile resinous glands. Leaves lanceolate or oblong-lanceolate, 
gradually narrowed to the tip, narrowed to the base, 13-2} in. long, 2-8 in. 
wide, thinly chartaceous, minutely crenulate, sparingly dotted with black glands 
above, beneath closely clothed with numerous almost contiguous rusty glands ; 
lateral nerves indistinct; petiole about % in. long, glandular. Flower-buds 
solitary in the axils of the uppermost leaves, about 3-flowered; bud-scales 
densely glandular on the. back, ciliate; pedicels closely beset with grey sessile 
scales, a in. long, slender, Calyx nearly obsolete, itis margin undulate, very 
densely glandular outside. Corolla rose-coloured, slightly 2-lipped, with red 
blotches in the tube behind; tube gaping, 2 in. long, eglandular outside ; 
lobes 5, spreading, oblong-ovate, sparingly glandular outside. Stamens 10, 
declinate, far exserted ; filaments sparingly hairy below; anthers pale yellow, 
zo in. long. Ovary 5-celled, clothed with. sessile scales; style rather longer 
_ the stamens, rose-coloured, glabrous, crowned by the viscid stigma. Fruit 
not seen. 
Tas. 8759.—Fig. 1, apex of leaf; 2, calyx and pistil; 3, scales; 4 and 
5, stamens ; 6, transverse section of the ovary :—all enlarged. 
