526 WILSON EXPEDITION TO CHINA 



The simple inflorescence well distinguishes this species from the closely related 

 M. joponicus Miiller Arg., which has a branched paniculate inflorescence. All the 

 specimens I have seen from Hupeh and Szech'uan belong to Pax's species and very 

 probably the Japanese species does not occur in that region. 



This is a very common roadside bush or small tree in western Hupeh and Sze- 

 ch'uan, being particularly abundant in warm rocky valleys. E. H.W. 



Mallotus philippinensis Miiller Arg. in Linnaea XXXIV. 196 (1865) ; 

 in De Candolle, Prodr. XV. pt. 2, 980 (1866). — Hance in Jour. Linn. 

 Soc. XIII. 122 (1873).— Hooker f., Fl. Brit. Ind. V. 442 (1887).— 

 Hemsley in Jour. Linn. Soc. XXVI. 440 (1894). — Pax in Bat. Jahrh. 

 XXIX. 428 (1900). — Pampanini in Nuov. Giorn. Bot. Ital. n. ser. 

 XVII. 414 (1910). — Leveille, Fl. Kouy-Tcheou, 165 (1914). 



Croton philippense Lamarck, Encycl. Meth. II. 206 (1786). 



Croton coccineus Vahl, Symb. II. 97 (1791). 



Croton punctatus Retzius, Obs. Bot. V. 30 (1789). 



Rottlera tinctoria Roxburgh, PI. Corom. II. 36, t. 168 (1798). 



Croton montamim Willdenow, Spec. IV. 547 (1805). 



Rottlera aurantiaca Hooker & Arnott, Bot. Voy. Beechey, 270 (1836). 



Western Hupeh: Chang-lo Hsien, thickets, alt. 300-1000 m., 

 June 1907 (No. 3294; small tree 5.5 m. high). Western Szech'uan: 

 Chengtu Plain, alt. 350 m., August 1904 (Veitch Exped. No. 4444). 



Mallotus repandus Miiller Arg. in Linnaea, XXXIV. 197 (1865) ; in 

 De Candolle, Prodr. XV. pt. 2, 981 (1866). — Hooker f., Fl. Brit. Ind. 

 V. 442 (1887). — Hemsley in Jour. Linn. Soc. XXVI. 441 (1894). — 

 Pampanini in Nuov. Giorn. Bot. Ital. n. ser. XVII. 104 (var. scahrifolius 

 Mull. Arg.) (1910). — Leveille, Fl. Kouy-Tcheou, 165 (1914). 



Rottlera scabrifolia A. de Jussieu, Tent. Euphorb. III. t. 9, f. 29 (1824). 

 Rottlera cordifolia Bentham, Fl. Hongk. 307 (1861). 

 Trewia nudiflora Hance in Jour. Bot. XVI. 14 (non Willdenow) (1878). 

 Mallotus contubernalis Hance in Jour. Bot. XX. 293 (1882). 

 Mallotus chry.socarpus Pampanini in Nuov. Giorn. Bot. Ital. n. ser. XVII. 413, 

 fig. 12 (1910). 



Western Hupeh: north and south of Ichang, thickets and cliffs, 

 alt. 30-1000 m., May and September 1907 (Nos. 3288, 3542; bush 2-2.5 

 m.). Eastern Szech'uan: Wan Hsien, banks of Yangtsze River, 

 April 1908 (No. 3288*; bush 2-3 m., flowers yellow). Western 

 Szech'uan: Mt. Omei, June 1904 (Veitch Exped. No. 5168; bush 

 1-4 m.). 



This is a very common shrub throughout the warmer parts of Hupeh and 

 Szech'uan. The leaves vary much in size and in the amount of their pubescence. 



E.H.W. 



