1916-17.] BOTANICAL SOCIETY OF EDINBURGH 213 



with very many white or rufous greasy hairs stiff and 

 branching from the base, these form the upper stratum 

 of indumentum covering a lower one of clavate orange- 

 coloui'sd shortly-stalked glands which are fewer in number 

 than the hairs ; style slender and like the ovary covered 

 througliout with hairs and glands (rarely only to the 

 middle and then with fewer hairs and glands) ; stigma 

 somewhat spongy and somewhat discoid and the style is 

 not much expanded below it. Capsule slightly curved 

 about 4 cm. long and 1 cm. broad glabrescent and black but 

 possessing the remains of the collapsed indumentum of the 

 ovary, girt at the base by the persistent slightly enlarged 

 cupular calyx. Seeds oblong flattened about 8 mm. long 

 and 1 mm. broad of a reddish-orange colour winged all 

 round and with a chalazal white crest. 



S.E. Yunnan : — Mengtsz. N. mountains, forests. 7000 ft. 

 Tree 15 ft. Flowers pink. Henry. No. 11,066; 8500 ft. 

 Tree 10 ft. Henry. No. 11,067b. In fruit. In Herb. Kew. 



This Henryan plant from the S.E. of Yunnan is cer- 

 tainly nearest to RJi. hvoratum, Franch. in the Irroratum 

 series. It has the rigid leaves with prominently undulate 

 margin of that species, but the leaf-form is somewhat diver- 

 gent. The lamina is wider below than above the middle, 

 becoming at times somewhat narrowly ovate or oblong 

 ovate with a rounded base. The petioles retain the juvenile 

 indumentum much longer — it may be found upon them 

 until they fall, so that the petiole does not appear so com- 

 pletely glabrous as it does in Rh. irroratum. Then the 

 inflorescence rhachis is quite floccose, not purely glandular 

 as in Rh. irroratuin ; the pedicels are usually under 1 cm. 

 long and intensely floccose as well as glandular, as is the 

 calyx — in Rh. irroratum there are no flocks. The tubular- 

 campanulate corolla shows a character not seen in others 

 of the Irroratum series — it is puberulous at the base out- 

 side, at the same time it has a sprinkling of glands upon 

 the veins as in Rh. irroratum. The staminal filaments are 

 pubescent to the middle and beyond not only finely puber- 

 ulous at the base as in Rh. irroratum ; they are also egland- 

 ular — a distinguishing character from RJi. adenostemonurn. 

 The ovary is quite covered with branched usually greasy 

 floccose hairs so densely that an underlying layer of clavate 



