474 WILSON EXPEDITION TO CHINA 
laxi- ac pauciflorae, parce tenere villosae, axibus purpurascentibus; 
flores fine mensis Junii aperti; cupula glabra, sepala intus villosa; 
petala cum unguiculo fere 1 mm. longo lato 5 mm. longa, late ovata, 
in laminae basi supra lanato-barbata, alba, staminibus circiter triente 
longiora; carpidia 5, tota connata, glabra; styli fere semiconnati, 
glabri. Fructus ignotus. 
Western Szech’uan: Pan-lan-shan, west of Kuan Hsien, woods, 
alt. 3800 m., June 24, 1908 (No. 3003). 
Sorbus pogonopetala differs from all other Chinese species with numerous small 
leaflets in its strongly bearded petals; it is also remarkable in the purplish black 
color of its petioles and rhachis. 
Sorbus unguiculata Koehne, n. sp. 
Frutex 2-5-metralis; rami 2-4 mm. diam., cinerei v. fusco-cinerei; 
gemmae 0.4-0.5 cm. longae, subsericeae v. glabratae. Stipulae 
herbaceae sed parvae, ad 5 mm. longae, dentibus paucis incisae v. 
dissectae, raro integrae; folia cum petiolo 0.5-1.8 cm. longo 5.5-13.5 
em. longa, (9-)12-16-juga; rhachis anguste alata, subtus plus minus 
rufo-pubescens demum glabrata, interstitiis 0.5—0.8 cm. longis; foliola 
inde a tertio v. quarto pari deorsum sensimque v. vix sursum decres- 
centia, basi subito contracta v. hine obtusa illine subacuta, oblonga 
v. ovalia, in innovationibus saepe angustius oblonga marginibus 
subparallelis, media 1-1.8 em. longa, 0.4-0.7 cm. lata, obtusa saepeque 
mucronato-cuspidata, rarius acuta, basi v. tertia parte integra ceterum 
argute serrulata dentibus utrinsecus circiter 4-13, supremis conniventi- 
bus, supra glabra, subtus paullo pallidiora glabra v. plerumque parce, 
in costa densius rufo-pubescentia v. villosiuscula demum glabrata, 
nervis utrinsecus circiter 6-8 saepe obsoletis reticuloque tenerrimis 
subtus saturatius coloratis, papyracea; epidermis utrinque laevis V. - 
subtus striis rarissimis obsita. Inflorescentiae suppetentes omnes 
ramulos brevissimos laterales terminantes, 2.5-5.5 cm. latae, 3.5-5 cm. 
longae, planae v. subconvexae, sublaxiflorae, parcissime densiusve 
pubescentes v. villosiuseulae demum glabratae; flores mense Junio 
aperti; cupula parce v. densiuscule pubescens, sepala extus glabra V. 
pubescentia, intus villosiuscula; petala cum unguiculo limbum di- 
midium aequante lato circiter 5-5.5 mm. longa, trapezoideo-rotundata, 
glabra, alba, staminibus triente longiora; carpidia 5 v. raro 4, tota 
connata, glabra, styli basi connati, glabri. Fructus globosus, circiter 
6-9 mm. diam., albus v. pallide purpurascens, sepalis conniventibus. 
Western Szech'uan: Tachien-lu, thickets, alt. 2600-3300 m» 
