204 JOURNAL OF THE ARNOLD ARBORETUM [vol. v 



Rosa rugosa Thunberg, Fl. Jap. 213 (1784).— Bunge in Mem. Div. 

 Sav. Acad. Sci. St. Petersb. n. 100 (Enum. PI. Chin. Bor. 26) (1833). 

 Franchet in Mem. Soc. Sci. Nat. Cherbourg, xxiv. 214 (1884). — Hemsley 

 in Jour. Linn. Soc. xxm. 253 (1887). — Faber in Denkschr. Entwickel. 

 Kiautschou, 32 (1898).— Ito in Tokyo Bot. Mag. xiv. 133 (1900).— Gilg. 

 in Bot. Jahrb. xxxiv. beibl. lxxv. 40 (1904). — Hers in Jour. N. China 

 Branch R. As. Soc. liii. 115 (1922); Liste Ess. Lign. Honan, 26 (1922). 



Rosa rugosa /3. ferox C. A. Meyer in M<5m. Acad. Sci. St. Petersb. s£r. 6, 

 vi. 32 (Ueber Zimmtros.) (1847).— Dingier in Bot. Centralbl. Beih. xxxvu. 

 abt. ii. 136 (1919). 



Rosa rugosa f. amurensis Maximowicz apud Debeaux in Act. Soc. Linn. 

 Bordeaux, xxxi. 152 (Fl. Tch6-fou, 57) (1876). 



Chili: cultivated (ex Bunge, 1. c, and Hemsley, 1. c). 



Shantung: Chifu, roadsides, A r . H. Cowdry, no. 578, July 5, 1920 

 (sterile). — See also Franchet, 1. c, Hemsley, 1. c, Faber, 1. c, Ito, 1. c, 

 Gilg, 1. c, Dingier, 1. c, and Debeaux, 1. c. 



Honan: cultivated (ex Hers, 1. c). 



Distribution: also Manchuria, Kamchatka, Korea, Japan. 



This Rose seems to occur spontaneously only in Shantung; the culti- 

 vated plants recorded from Chili and Honan probably belong to the 

 double-flowered form of var. Chamissoniana. 



Rosa rugosa var. Chamissoniana C. A. Meyer in Mem. Acad. Sci. St. 

 Petersb. ser. 6, vi. 34 (Ueber Zimmtros.) (1847). — Dingier in Bot. Cen- 

 tralbl. Beih. xxxvu. abt. n. 136 (1919). 



Shantung: Chifu, roadsides, N. H. Cowdry, no. 577, July, 1920 

 (sterile). — See also Dingier, 1. c. 

 Distribution: also Kamchatka. 



Rosa rugosa var. Chamissoniana f. rubro-plena, comb. nov. 



Rosa rugosa var. floribus plenis Franchet in Nouv. Arch. Mus. Paris, sdr. 2, 



v. 268 (PI. David, i. 116) (1883). 

 Rosa rugosa var. Chamissoniana Rehder & Wilson in Sargent, PI. Wilson. 



ii. 321 (1915).— Vix C. A. Meyer. 



Rosa rugosa var. rubro-plena Rehder in Bailey, Stand. Cycl. Hort. v. 2992 

 (1916). 



Chili: Peking, cultivated (ex Franchet, 1. c). 



Distribution: cultivated and escaped from cultivation in Hupeh; 

 also cultivated in other provinces of China; probably the cultivated 

 plants enumerated under R. rugosa belong here. 



Rosa davurica Pallas, Fl. Ross. i. pt. 2, 61 (1788).— Crepin in Bull. 

 Soc. Bot. Belg. xiv. 33, 38 (Prim. Ros. Monog. 327, 332) (1875).— Franchet 

 in Nouv. Arch. Mus. Paris, ser. 2, v. 268 (PI. David. I. 116) (1883).— 

 Hemsley in Jour. Linn. Soc. xxm. 249 (1887). — Rehder & Wilson in 

 Sargent, PL Wilson, n. 340 (1915). 



Chili: west of Weichang, W. Purdom, no. 107, 1910; near San tung 

 ying, stony places, F. N. Meyer, no. 973, May 31, 1913; Hsiao Wu tai shan, 

 F. N. Meyer, no. 1240 (105), August 20, 1913; J. Hers, no. 1503, July 14, 



