RHAMNACEAE. — BERCHEMIA 213 



latis staminibusque subaequilonga; ovaria bilocularia, apice hirta, stj^lis 2 coro- 

 nata. Fructusgloboso-ellipticus, circiter 12 mm. longus et 9mm. latus, glaber, rubro- 

 brunneu3(?); semina 2, nigro-olivacea, laevia, nitida; pedicelli fructiferi 5-9 mm. 

 longi. 



Yunnan: Szemao, W. Mts., alt. 1800 m., A. Henry (No. 12086% type; thorny 

 tree, 3.75 m. tall), forests, alt. 1600 m. (No. 12086''; tree 5 m. tall). 



I cannot identify these specimens with any species hitherto described, but 

 the Asiatic species of this genus need a thorough revision. 



Zizyphus spec. 



Yunnan: Szemao, alt. 1800 m., forest, A. Henry (No. 11726; large climbing 

 shrub, white flowers). 



Although rather resembling Z. yunnanensis this specimen may represent an- 

 other new species, differing from the last in its thorny branchlets which bear a 

 rather thick rufous pubescence as do the petioles and the inflorescence. In 

 shape and pubescence the young and thin leaves hardly differ from those of 

 Z. yunnanensis, but their margin is more serrulate. The inflorescence shows no 

 marked difference, but I have not seen the petals. 



BERCHEMIA Neck. 



Berchemia floribunda Brongniart in Ann. Sci. Nat. X. 357, t. 13, i. 

 {Mem. Fam. Rhamn. 50) (1826). — Lawson in Hooker f., Fl. Brit. 

 Ind. I. 637 (1875). 



Zizyphus floribunda Wallich in Roxburgh, Fl. Ind. II. 368 (1824). 



Nepal to Khasia. 



Berchemia floribunda, var. megalophylla, Schneider, n. var. 



A typo praecipue differt foliis majoribus 8-13 cm. longis 5-7.5 cm. 

 latis apice in acumen paullo brevius productis, pedicellis florum ex- 

 pansorum paullo brevioribus. 



Kiangsi : near Ruling, alt. 1120 m., thickets, August 1909 (No. 

 1514; semiscandent shrub, 1.5-5 m. tall, flowers white). Yunnan: 

 Szemao, alt. 1800 m., A. Henry (No. 11747^; large climber on trees, 

 flowers white). 



At first sight the large leaves seem to distinguish the Chinese forms from those 

 of the Himalaya and Khasia, but after having examined ample material of B. 

 floribunda I cannot find other differences sufficient to make it possible to con- 

 sider var. megalophylla a species. 



Berchemia Giraldiana Schneider, III. Handb. Lauhholzk. II. 263,- 

 fig. 182 m-n, 183 k (1909). 



Western Hupeh: Hsing-shan Hsien, among rocks, alt. 300-1000 

 m.. May 1907 (No. 3387; spreading shrub 1-3 m.); north and south 

 of Ichang, thickets, alt. 600-1300 m., common, July and August 1907 



