126 WILSON EXPEDITION TO CHINA 



A typo varietatis recedit ramulis junioribus, petiolis, rhachibus 

 inflorescentiae fermgineo-pubescentibus. 



Western Szech'uan : west and near Wen-eh'uan Hsien, thickets, 

 alt. 1300 m., July 1908 (No. 2693, type; bush 2.5 m. tall); Mt. Omei, 

 May 1904 (Veitch Exped. No. 4769). 



This form is easily distinguished by the short, ferruginous pubescence covering 

 the shoots, petioles and the rhachis of the inflorescence. 



Zanthoxylum dimorphophyllum Hemsley in Ann. Bot. IX. 150 

 (1895). 



Fagara dimorphophylla Engler in Engler & Prantl, Nat. Pflanzenfam. III. 

 Abt. IV. 118 (1896). — Pritzel in Bot. Jahrb. XXIX. 422 (1900). 



Western Hupeh: Ichang, thickets, alt. 30-600 m., common, 

 May and July 1907 (No. 113 ; bush 2.5 m. tall, flowers yellow) ; Changlo 

 Hsien, thickets, alt. 1000-1300 m., September 1907 (No. 149; bush 3 

 m. tall); without locality, May and July 1900 (Veitch Exped. No. 

 601); without locality, A. Henry (Nos. 5512, 7003). Western 

 Szech'uan: Lungan Fu, valleys, alt. 1600-2300 m., August 1910 

 (No. 4624; bush 2^ m. tall); Mt. Omei, June 1904 (Veitch Exped. 

 No. 4770^); without locality, May 1904 (Veitch Exped. No. 3311). 



This is a very common shrub, abundant in the wayside thickets and on the 

 cliffs. This plant was originally described as very spiny, but this is an error, since it 

 is remarkably free of prickles for a species of Zanthoxylum. It had been referred 

 by Engler to the genus Fagara, though it is stated in Hemsley's original descrip- 

 tion that it has a simple perianth, which is correct according to the material 

 before us. 



Zanthoxylum dimorphophyllum, var. spinifoliimi Rehder & Wilson, 

 n. var. 



A typo recedit ramulis et saepe petiolis aculeatis, foliis 3- v. in- 

 terdum 5-foliolatis, foliolis margine in sinubus crenarum aculeis 

 gracilibus et interdum supra rarissime infra aculeis rectis instructis. 



Western Szech'uan: Chiu-ting-shan, thickets, alt. 1300 m.. May 

 22, 1908 (No. 2696, type). Eastern Szech'uan: without locality, 

 A. Henry (No. 5494). 



Easily distinguished from the type by the long setose spines on the margins of 

 the leaflets; the petioles and branches are also very spiny and the leaves are 3- 

 or occasionally 5-folioIate. 



