446 WILSON EXPEDITION TO CHINA 



(No. 2547; ripe fruits, etc., as in No. 1149). Eastern Szechu'an: 

 district of Tchen-keou-tin, alt. 1400 m., P. Farges (No. 809 [or 805 fide 

 Winkler] , type of var . sutchuenensis ex Franchet) . Western Hup eh: 

 Changlo Hsien, woods, alt. 1200-1800 m., April and July, 1907 (No. 

 2276; bush 2.4 m. tall; with young fruits like those of var. Crista-galli 

 type); same locality, September 1907 (No. 2279; bush 3 m. tall; fruits 

 as in No. 1149, but branchlets and petioles hirsute and very glandular- 

 setose, kind of pubescence of leaves somewhat intermediate between 

 type and var. yunnanensis) ; Hsing-shan Hsien, woods, common, alt. 

 1200-1800 m., June 1907 (No. 2277''; bush 2.4-4.5 m. tall; fruits as 

 in No. 2276); same locality, October 1907 (No. 2277; ripe fruits, etc. 

 as in No. 1149); Changyang Hsien, woods and sides of streams, alt. 

 800-1600 m., April and October 1907 (No. 2278; bush 3-7 m. tall; 

 with very young leaves and female flowers; No. 2278=»; old leaves and 

 catkins, more glabrous than No. 2279) ; Patung and Tunghu Hsiens, 

 A. Hennj (Nos. 1449; male flowers; 2854, 2866, 6413, co-types of 

 var. Crista-galli; old leaves, young and ripe fruits). Northern 

 H u p e h : "Monte di Fan-sien," July-August 1906, C. Silvestri (No. 324; 

 ripe fruits like those of var. Crista-galli type) ; " Ou-tan-scian,"alt. 2090 

 m., July 1907, C. Silvestri (No. 328; young fruits similar to those of No. 

 327); " Monte T'ien-pong-scian, a 30 km. a N.E. di Chang-kin," alt. 

 1990 m., October 1907, C. Silvestri (No. 329; leaves thin, sparsely pu- 

 bescent, anthers of young male catkins apparently red). Northern 

 Shensi: Kin-qua-san, July 10, 1897, /. Giraldi (young fruits similar 

 to those of No. 327). Kiangsi: Kuling, thickets, common, alt. 1300 

 m., July 30, 1907 (No. 1538; bush 1.2-3 m. tall; unripe fruits, etc., 

 similar to those of No. 2279, leaves and branchlets a little more glabrous). 

 Yunnan : " dans les gorges du Lan ho, au pied du mont Yang in Chan, 

 pres Langkong," J. Delavay (No. 128; fide Franchet, similar to the type 

 from Mandshuria, referred by Burkill to var. Crista-galli). Hunan : 

 Shihmen, A. Henry (No. 7942, by Burkill referred to var. Crista-galli). 



There is a good deal of variability in the involucres of the nuts and in the pubes- 

 cence of the leaves, petioles and branchlets of this species. I have not seen 

 Franchet's type specimen, but I do not believe that there is enough difference be- 

 tween var. sutchuenensis and var. crista-galli to keep these varieties distinct. If the 

 anthers of the plants from Hupeh, eastern Szech'uan, and Kiangsi turn out to be 

 always red, this form represents a distinct species most nearly related to var. yunna- 

 nensis, while the forms of western and northwestern Szech'uan, if their anthers are 

 really yellow, would represent a variety of the typical C. heterophylla Fischer. Both 

 species have differences in the involucres of the fruits and in the pubescence of the 

 leaves, petioles and branchlets. What is needed most are observations in the field. 

 In Yunnan near Lichiang Fu, where the Hazel is very common, I noticed the same 



