ROSACEAE. — ROSA 341 



Chili : west of Weichang, 1910, W. Purdom (No. 107, Seed No. 49); near "San- 

 tun-ying," stony places, May 31, 1913, F. N. Meyer (No. 973); " Hsaio Wu-tai- 

 shan," August 20, 1913, F. N. Meyer (Nos. 105, 1240). 



22. Rosa caudata Baker. See p. 321. 



23. Rosa banksiopsis Baker. See p. 322. 



24. Rosa Davidii Crepin. See p. 322. 



Rosa Davidiana, var. elongata Rehder & Wilson. See p. 323. 



25. Rosa corymbulosa Rolfe. See p. 323. 



26. Rosa setipoda Hemsley & Wilson. See p. 323. 



27. Rosa persetosa Rolfe in Kew Bull. Misc. Inform. 1913, 263. 



Rosa macrophylla ? forma gracilis Vilmorin & Bois, Frut. Vilmorin. 94 (nomen 



nudum) (1904). 

 Rosa macrophylla, var. acicularis M. de Vilmorin in Jour. Hort. Soc. Land. 

 XXVII. 487, figs. 137, 138 (1902-03). 

 Of this Rose we have seen no wild specimens, and we know it only from cultivated 

 plants sent to the Arnold Arboretum by M. Maurice de Vilmorin, who raised it from 

 seed received from China. 



28. Rosa saturata Baker. See p. 324. 



29. Rosa bella Rehder & Wilson, n. sp. 



Frutex erecto-patens, 1-3-metralis ; rami satis graciles, saepe purpurascentes, 

 aculeis sparsis et infrastipularibus rectis acicularibus basi leviter tantum dilatatis 

 4-8 mm. longis muniti, rarius fere inermes, turiones basin versus aciculati. Folia 

 membranacea, 7-9-foliolata, raro 5-foUolata, petiolo incluso 4-9 cm. longa; foliola 

 breviter petiolulata, elliptica v. ovata, acutiuscula, rarius obtusiuscula, basi rotun- 

 data, 1-2 cm. longa et 0.6-1.2 cm. lata, simpliciter serrata dentibus mucronulatis 

 porrectis V. leviter incurvis, supra laete viridia, glabra, subtus glaucescentia, glabra v. 

 ad costam sparse minute stipitato-glandulosa, utrinsecus nervis 5-6 curvatis subtus 

 leviter elevatis v. fere obsoletis; petioU 1-2 cm. longi, ut rhachis sparse stipitato- 

 glandulosi et aciculati; stipulae adnatae, 1-1.5 cm. longae, in ramulis floriferis 

 latae, in turionibus satis angustae, glabrae margine dense ciliato-glandulosa excepta, 

 auriculis triangularibus acuminatis v. acuminulatis patentibus. Floras rosei, 4-5 cm. 

 diam., fragrantes, solitarii v. 2-3 in apice ramulorum brevium terminales; pedicelli 

 0.5-1 cm. longi basi bracteati bracteis ovatis v. ovato-lanccolatis acuminatis 1-1.5 

 cm. longis glanduloso-ciliatis, ut receptaculum elUpsoideum v. oblongum stipitato- 

 glandulosi; sepala ovato-lanceolata in acumen foliaceum attcnuata, integra, 

 circiter 2 cm. longa, petahs breviora, extus stipitato-glandulosa, intus villosa, post 

 florationem reflexa, in fructu erecta; alabastra anguste ovata sensim attenuata; 

 petala late obovata, emarginata, 2-2.5 cm. longa; stamina numerosa, antheris 

 ovalibus luteis; capitulum stigmaticum sessile. Fructus elliptico-ovatus, satis 

 sensim in coUum attenuatus, basi plus minusve attenuatus, aurantiaco-scarlatinus, 

 calyce persistente coronatus, sine calj^ce 1.5-2 cm. longus, glanduloso-setosus. 



Shansi : mountains in northwest, April 1910, W. Purdom (No. 314, seeds only). 

 Cultivated at the Arnold Arboretum; plants raised from Purdom's No. 314: June 

 17 and Aug. 26, 1914, June 1915 (type). 



This pretty Rose seems most closely related to R. Moycsii Hemsley & Wilson, 

 which is a much more vigorous plant with stout prickles, larger usuallj' more acute 

 leaflets pubescent beneath, at least on the midrib, globose-ovoid flower-buds 

 abruptly contracted at the apex, larger flowers and pinnate sepals. It may also 

 be compared with R. Sweginzowii Koehne, which differs chiefly in its stouter much 



