ROSACE AE. — ROSA 341 



r 



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 Davidu Cr^pin. 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 macropkylla ? forma gracilis Vilmorin & Bois, Frui. Vilmorin. 94 (nomen 



nudum) (1904). 

 Rosa macropkylla, var. acicularis M. de Vilmorin in Jour. Hort. Sac. Lond. 



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. FoHa 

 membranacea, 7-9-foliolata, raro 5-foHolata, 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 mucronulatia 

 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. fereobsoletis; petioli 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 triangularlbus acuminatis v. acuminulatis patentibus. Flores 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-lanceolatis acuminatis 1-1.5 

 cm. longis glanduloso-cihatis, ut receptaculum ellipsoideum v. oblongum stipitato- 

 glandulosi; sepala ovato-Ianceolata in acumen foliaceum attenuata, integra, 

 circiter 2 cm. longa, petalis 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, antherjs 

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

 sensim in collum attenuatus, basi plus minusve attenuatus, aurantiaco-acarlatinus, 

 calyce persistente coronatus, sine calyce 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. Moyesii Hemsley & Wilson, 

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

 leaflets pubescent beneath, at leaat on the midrib, globose-ovoid flower-buda 

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

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



