206 JOURNAL OF THE ARNOLD ARBORETUM [vol. v 



Rosa bella Rehder & Wilson in Sargent, PL Wilson, n. 341 (1915). 



? Rosa macrophylla 8. hypolcuca Franchet in Nouv. Arch. Mus. Paris, s£r. 



2, v. 267 (PL David, i. 115) (1883). 

 Rosa sp. F. N. Meyer in U. S. Dept. Agric. Invent. Seeds PL Imp. xxxvu. 



75, no. 36S57, 36N58 (1916). 

 Rosa Xwcginzowii Hers in Jour. N. China Branch R. As. Soc. LIU. 115 (1922); 



Liste Ess. Lign. Honan, 20 (1922).— Non Koehne. 



Chili: Po hua shan, J. Hers, nos. 1438, 1671, July 1 and September 9, 

 1921; alt. 1000-2000 m., J. Hers, no. 22,33, October 12, 1922; Hsiao Wu 

 tai slum, alt. 1600 m., I\ N. Meyer, nos. 1239 and 1256, August 20 and 21, 

 1913; J. Hers, no. 1486, July 14, 1921; Hsiao Wu tai shan, Tieh ling sze, 

 alt. 1300 in., J. Hers, nos. 2122, 2130, October 7, 1922; Kalgan, N. H. 

 Cowdry, no. 1974, August 30, 1921; without precise locality, Pfre Chanct, 

 nos. 10, 38, 1918. — See also Franchet, 1. c, and Meyer, 1. c. 



Honan: Lushih, Lao kiun shan, alt. 2000 m,. J. Hers, no. 1162, Sep- 

 tember 21, 1919; Lushih, Hiung eul shan, alt. 1400 m., J. Hers, no. 896, 

 October 10, 1919; Tsi yuan hsien, Tien tan slum, J. Hers, no. 1812, Sep- 

 tember 21, 1921. — See also Hers, 1. c. 



Shansi: Wu chai hsien, Ta nan kow, alt. 2000-3000 m., Tchuang Kieh, 



Hers no. 2001, September 7, 1922; Wu tai shan, alt. 1600 m., J. Hers, no. 



2617, July 29, 1923; Nan fang shan, common between 2000 and 3000 m., 



flowers dark red, ,/. Hers, no. 2717, September 22-30, 1923. 



Shensi: Lung chow, Li kia po, alt. 1400 m., J. Hers, no. 2385, July 4, 

 1922. 



This species seems to be the most common and most widely distributed 

 Rose in northeastern China. Most specimens differ from the type in the 

 pubescent midrib of the underside of the leaves, but otherwise they agree 

 with it. The specimen from Shensi has the leaves densely grayish pubes- 

 cent beneath and slightly pubescent above and represents probably a 

 distinct form, if not a different species. In the short pedicels which 

 like the calyx-tube are densely stipitate-glandular and glandular-setose, 

 R. bella resembles R. Sweginzowii Koehne, but the leaves are simply 

 serrate and the sepals entire. From R. acicidaris Lindl. it differs in the 

 smaller more numerous leaflets glaucescent beneath and in the short- 

 pedicelled usually clustered flowers and the densely glandular-stipitate 

 pedicel and calyx-tube; by the last named character it also differs from 

 R. Moyesii Hemsl. & Wils. which besides has more numerous, more acute 

 and rather finely serrate leaflets. 



Rosa bella f. pallens Rehder & Wilson in Sargent, PL Wilson, n. 342 

 (1915). 



This form with pale rose flowers was raised from the same seed as the 

 type and probably occurs with the red-flowered type in other localities. 



Rosa bella var. mongolica, comb. nov. 



Rosa macrophylla a. mongolica Franchet in Xouv. Arch. Mus. Paris, sdr. 2, 

 267 (PL David, i. 115) (1883). 



Rosa macrophylla Ilemsley in Jour. Linn. Soc. xxm. 251 (1887), quoad speci- 

 men Davidii. — Non Lindley. 



