464 WILSON EXPEDITION TO CHINA 



Here belongs possibly : 



S. Wilsonianaf var. (b) nova Schneider in Bull. Herb. Boissier, ser. 2, VI. 313 

 (1906). Differt foliis 4-6-jugis ad 20 cm. longis, foliolis 5.5: 2.2 cm., obtusis, 

 paullo minoribus, distantioribus, serraturis acutioribus, inflorescentiis laxioribus, 

 petalis intus basi villosis, stylis 5, carpellis ut videtur omnino connatis. 



To this " variety " may be referable Pratt's specimen No. 223 quoted by 

 Schneider in his III. Handb. Laiihholzk. I. 671 (1906) and figured under Fig. 367 

 k 2 and 369 q. 



Sorbus Rehderiana Koehne, n. sp.^ 



Frutex v. arbor frutescens 3-8-metralis ; rami 5-8 mm. diam., 

 cinereo-nigricantes; gemmae 0.8-1.3 cm. longae, glabrae v. raro e 

 squamarum marginibus ciliatae. Stipulae siccae, lanceolatae, 3-6 mm. 

 longae, post anthesin deciduae, folia cum petiolo 1-2 cm. longo 10- 

 15 cm. longa, 7-9(-10)-juga; rhachis alata, glabra, interstitiis 1-1.4 

 cm. longis; foliola inde a tertio v. quarto pari deorsum sursumque 

 subdecrescentia, basi oblique rotundata v. hinc acuta, oblongo- 

 lanceolata v. lanceolata, media 2.5-5 cm. longa, 0.8-1.3 cm. lata, 

 cuspidato- v.mucronato-acuta, vix tertia v. saepe dimidia parte Integra, 

 superne serrulata, dentibus saepe subincurvis utrinsecus circiter 

 10-20, supra nitidula parcissime tenerrime villosa mox glabrata, 

 margine ciliolata mox glabrata, subtus pallidiora costa subochracea, 

 glaberrima v. in costa pubescentia, nervis utrinsecus circiter 10-18 

 reticuloque teneris supra subimpressis subtus saturatius coloratis, 

 juvenilia rigidula adulta subcoriacea; epidermis supra laevis, subtus 

 epapillosa irregulariter striata cellularum limitibus absconditis v. 

 pro parte laevis cellulis manifestis. Inflorescentiae nunc ramulum 

 longiorem nunc ramulos breves laterales crassos terminantes, 2.5- 

 6.5 cm. latae, 3.5-5.5 cm. longae, planae v. convexae, satis densiflorae, 

 parce fusco-villosae, demum plus minus glabratae; flores initio mensis 

 Julii aperti; cupula glabra, sepala ciliata; petala circiter 5 mm. longa, 

 e basi breviter late unguiculata, ovata, glabra, alba, staminibus duplo 

 longiora; carpidia 5, inde a placenta segregata, apice villosiuscula, 

 styli glabri. Fructus globosus, circiter 6-7 mm. diam., albidus v. 

 carneus (" flesh-pink ") v. roseo-purpurascens {" reddish-purple "), 

 sepalis apice incurvis. 



Western Szech'uan: Tachien-lu, woodlands, alt. 2600-3300 m., 

 October 1908 (No. 1266); south-east of Tachien-lu, woods, alt. 3000- 

 3300 m., October 1910 (No. 41 14); south-east of Tachien-lu, wood- 

 lands, alt. 2600-3000 m., October 1910 (No. 4092); north-east of 



* Descriptio exclusa varietate. 



