RHAMNACEAE. — SAGERETIA 227 



cm. longae, glabrae v. minutissime puberulae; flores sessiles, albi, 

 minimi, glabri, normales; sepala receptaculo longiora, ovato-acuta; 

 petala sepalis breviora, alba, glabra, spathulata, emarginata, con- 

 voluta, staminibus sublongiora; antherae albae. Fructus ignotus. 



Western Szech'uan: west and near Wen-ch'uan Hsien, arid 

 places, alt. 1000-1600 m., July 1908 (No. 3339). 



This species seems very nearly related to S. theezans Brongniart, of which some 

 forms much resemble S. pycnophylla. But these forms of S. theezans have dis- 

 tinctly larger leaves and pubescent flowers or the leaves are of a rather different 

 shape. See note to *S. theezans below. 



Sageretia rugosa Hance in Jour. Bot. XVI. 9 (1878). 



Sageretia ferruginea Oliver in Hooker's Icon. VIII. pi. 1710 (1887). 

 Western Hupeh: Patung Hsien, thickets, alt. 600-1000 m., 

 August 1907 (No. 2588, scandent bush 4 m.). 



This number agrees very well with the drawing and description given by Oliver 

 of Henry's No. 2701 from Ichang, which I have not seen. Oliver seems to have 

 overlooked S. rugosa Hance, the type of which came from the province of Kwang- 

 tung. Hance's description of S. rugosa agrees with that of Oliver. The plate 

 shows that the petals are pubescent on the outside, but neither Oliver nor Hance 

 say anything about this important character in their descriptions. Unfortunately 

 the flowers of Wilson's specimen are far too young to show this character. The 

 permanent pubescence of the underside of the leaves affords the best character to 

 distinguish this and S. omeiensis from other species of the genus. 



Sageretia theezans Brongniart in Ann. Sci. Nat. X. 360 (Mem. 

 Fam. Rhamn. 53) (1826). — Maximowicz in Mem. Acad. Sci. St. 

 Petershourg, s6t. 7, IV. No. XI. 20 {Rhamn. Or. -As.) (1866). — Law- 

 son in Hooker f., Fl. Brit. Ind. I. 641 (1875). — Hemsley in Jour. 

 Linn. Soc. XXIII. 131 (1886). 



Rhamnus Thea Osbeck, Dagbok Ostind. Resa, 232 (nomen nudum) (1157); 



Reise Ostind. China, 302 (nomen nudum) (1765). — Linnaeus, Mant. Alt. 207 



(quasi synon.) (1771). 

 Rhamnus theezans Linnaeus, Mant. Alt. 207 (1771). 



Western Hupeh: Patung Hsien, cliffs of Yangtsze River, alt. 

 30-300 m., March 1908 (No. 3341 ; spreading bush 1-2 m.). Chekiang: 

 vicinity of Ningpo, D. Macgregor, 1908. 



Wilson's specimen differs somewhat from the type, as understood by me, in 

 its rather round leaves. Very similar forms occur in Formosa {A. Henry, No. 227) 

 and also in Korea {Taquet, Quelpaert, October 29, 1908, No. 641; R. Oldham, 

 Korean Arch., 1863, No. 1661). It is, however, difficult to decide, if they represent a 

 distinct variety without having made further investigations. The tjiae is some- 

 what uncertain, but Linnaeus describes the leaves as ovate, and I have seen some 



