1916-17.] BOTANICAL SOCIETY OF EDINBUR&H 183 



filaments widened at base and from there finely puberulous 

 to above ovary. Disk most glabrous. Gynaeceum about 

 4 cm. long shorter than corolla ; ovary about 6 mm. long 

 conoid fiu'rowed blackening sparingly coated with flocks 

 of greasy hairs or single greasy hairs or with cauliflower 

 glands; style glabrous throughout slightly clavately ex- 

 panding into lobulate non-discoid stigma. 



Mr. Forrest obtained this in only one locality, that of 

 the Sungkwei pass (East-North-West Yunnan), a station in 

 which Rh. irroratum, Franch. — with which it has affinity, 

 as Diels points out, — also occurs. Rh. anthospliaerura ^ a-^^ 

 cannot be mistaken for Rh. irroratum.l It wants the 

 glaucous foliage of that species and has bright red flowers. 

 The mature leaves are papery in texture, not rigid, thick, 

 coriaceous as in Rh. irroratum; they are longer and 

 broader, and the midrib below has more or fewer greasy 

 hairs persisting upon it. The inflorescence rhachis is shorter 

 and is floccosely pubescent not glandular as in Rh. irro- 

 ratum, and the same indumental difference appears in the 

 pedicels. There are never glands on the outside of the 

 corolla. Then we have the interesting fact in Rh. antlto- 

 sphaerum that the corolla lobes vary from 5 to 6, and there 

 is a corresponding fluctuation in the stamens from 10 to 12. 

 I have not found a 7-lobed corolla nor 14 stamens. Rh. 

 irroratum seems to be a form with a strictly 5-lobed 

 corolla. No fluctuation in size of corolla and flower parts 

 generally appears in Rh. anthosphaerum.. The filaments 

 here are finely puberulous from the very base upwards to 

 just above the ovary, as in RJi. irroratum. The gynaeceum 

 ofifers distinctive characters. The blackening ovary has the 

 glands of Rh. irroratum replaced by greasy floccose or 

 single hairs, and instead of being glandular the style of 

 Rli. anthosphaeru7n is glabrous throughout, the stigma not 

 discoid. Diels refers to a puberulous base of the style. This 

 only refers to the fact that there is occasionally a slight 

 extension of the flocks of the ovary upon the lowermost 

 part of the style, but one cannot rightly speak of the style 

 as being puberulous at base (see also p. 168). 



More near is the relationship with Rh. hylothreptum,, 

 Balf. f. et W. W. Sm., also from the Sungkwei pass. 



