310 WILSON EXPEDITION TO CHINA 



valley of Tung River, alt. 1300-2000 m., October 1910 (No. 4i75); 

 Wa-shan, thickets, alt. 1600 m., November 1908 (No. I334^)- 



This is a very distinct species readily distinguished by its large leaflets with 

 strong reticulate venation and villose pubescence on the underside, by its large 

 membranous stipules, by its short-peduncled dense corymbs, by the villose to- 

 mentum on the pedicels and calyx and by its orange-colored fruit. It is related to 

 Rosa longicitspis Bertoloni, which is nearly glabrous everj'where and has shining 

 green leaves with much less prominent venation, flowers on longer pedicels, and a 

 very much larger red or scarlet fruit. This new species has a rather local distribu- 

 tion but is fairly common in the regions mentioned. 



Rosa Helenae Rehder & Wilson, n. sp. 



Rosa floribunda Rolfe in Gard. Chron. ser. 3, LVIll. 210 (pro parte, non Steven, 

 nee Baker) (1915), quoad descriptionem. 



Frutex diffusus sarmentosus; rami crassi, glabri, annotini purpureo- 

 brunnei, aculeis plerumque numerosis conformibus, validis falcatis basi 

 dilatatis flavo-griseis muniti. Folia decidua, 3-9-, plerumque 7-9-f oli- 

 olata, petiolo incluso 5-12, plerumque 10-12 cm. longa; foliola brevis- 

 sime petiolulata, oblongo-ovata v. ovato-lanceolata, rarius elliptica, 

 interdum elliptico-obovata, 2-4.5 cm. longa et 1-2.5 cm. lata, plerumque 

 breviter acuminata, basi rotundata v. rarius late cuneata, argute ser- 

 rulata, supra glabra et intense viridia, subtus cinerei et costa nervisque 

 pilosis exceptis glabra v. fere glabra, utrinsecus nervis 4-7 supra im- 

 pressis subtus elevatis; petioli 2-3.5 cm. longi, ut rhachis supra canali- 

 culati dense pubescentes et subtus aculeis parvis falcatis sparse muniti; 

 petioluli 1-2 mm. longi; stipulae adnatae, 1.5-2.5 longae, satis an- 

 gustae, auriculis suberectis 4-8 mm. longis anguste semi-ovatis v. 

 triangularibus glanduloso-denticulatis, glabrescentes, margine inter- 



r 



dum sparse stipitato-glandulosae. Flores albi, fragrantes, 3-4 cm. 

 diam., in corymbis terminalibus multifloris 6-15 cm. diam.; bracteae 

 membranaceae, anguste lanceolatae, caducae; pedicelli graciles, 2-2.5 

 cm. longi, dense stipitato-glandulosi; receptaculum obovoideum v. 

 ellipsoideum, stipitato-glandulosum; sepala lanceolata, acuminata, 

 reflexa, 8-12 mm. longa et 3-4 mm. lata, sparse lobata, extus stipitato- 

 glandulosa et sparse villosa, intus dense villosa; petala obovoidea, 

 circiter 1.5 cm. longa, plerumque emarginata, glabra; styli in columnam 

 coaliti, exserti, dense pilosi. Fructus ovoideus v. ellipsoideo-obovoi- 

 deus, intense aurantiaco-ruber v. scarlatinus, 1-1.5 cm. longus et 8-10 

 mm. diam., stylis et sepalis caducis. 



Western Hupeh: Patung Hsien, thickets, alt. 600-1300 m., June 



1907 (No. 431, type, 431^, seeds only); Ichang, glens, June 1900 



