1915-16.] BOTANICAL SOCIETY OF EDINBURGH 81 



villous like the calyx. Calyx membranaceous, greenish 

 lutescent with ovate long-iimbriate ciliate lobes. Corolla 

 rotate sulphur-j^ellow glabrous, almost 2 cm. diam., tube 

 extremely short. Stamens 10 with short filaments hirtel- 

 lous at the middle. Ovary densely lepidote. 



Yunnan : — On Mount Tsang-Chan. Delavay. 



So much Franchet, I.e. 



I add the following comments : — 



The branchlets of the year have, in addition to the setae, 

 scattered lutescent scales like the leaves. In their second 

 year the branchlets have lost all or most of the hairs and 

 are brownish in tint. The older branches are ash-gre3^ 

 The foliage buds are ovoid, the bud scales brown leathery, 

 all the outer ovate to ovate rounded — the outermost slightly 

 pointed, those within more rounded and mucronulate, 

 when expanded lepidote on back, and all are more or less 

 shortly ciliate. The innermost become oblong or obovate 

 and pass into foliage leaves. The young leaves often have 

 an abundance of rigid setae on the upper surface. These 

 always disappear early, and I find that the adpressed 

 strigose hairs on the upper surface are not apparent else- 

 where than on and about the midrib. The paleness of the 

 under leaf-surface is due to the granular wax on the 

 surface of the epidermal papillae, which here are very short 

 and conical, but the layer never suffices to give the impres- 

 sion of waxy bloom such as one sees in Rh. onelinanthum, 

 Balf . f . et Ward, or in Rh. sulfureum, Franch. The peltate 

 scales have an entire fringe, and the uitibo is slightly 

 convex and rubiginose. The pedicels are also lepidote. 

 The flower bud scales are quite like those of the vegetative 

 buds. The calyx lobes are often oblong, about 5 mm. long 

 by 2 mm. broad. The sulf)hur-yellow corolla is about 2 cm. 

 long with the lobe about 1 cm. wide or more, and the tube 

 strongly pubescent inside on the posterior side. Of the 

 ten stamens four posterior are villous about middle just 

 above the ovary, the others are slightly pubescent from 

 near base a short way upwards. The scales of the ovary 

 have a fringe and are like those of the leaf. The short 

 glabrous style is decurved. The ovary is ovoid, about 

 4 mm. long ; the style is about 7 mm. long, expanding 

 into the lobed stigma. The capsule is small ovoid oblong, 



TRANS. BOT. SOC. EDIX. VOL. XX^IT. Q 



