ROSACEAE. — SORBUS 473 



Western Szech'uan: west and near Wen-ch'uan Hsicn, wood- 

 lands, alt. 2300-3000 m., June 1908 (No. 1035; flowering branches, 

 type; the fruiting branches belong to S. Rehderiana, var. grosseserrata) ; 

 same locality, alt. 3000-3300 m., October 1910 (No. 4198). 



Sorbus multijuga, var. microdonta Koehne, n. var. 



Frutex 3-4-metralis; rami 2-3.5 mm. diam., nigricanti-cinerei v. 

 cinerei; gemmae 0.9 mm. longae, parce albido-sericeae, apice dense 

 rufo-sericeae. Stipulae nonnullae, simplices, lanceolatae; folia cum 

 petiolo 1-2 cm. longo 9-15 cm. longa, (12-)16-20-juga; foliola media 

 1.2-2.2 cm. longa, 0.3-0.6 cm. lata, basi Integra, ceterum argute ser- 

 rulata dentibus dimidio minoribus quam in typo haud v. vix incurvis, 

 subtus glabra v. in costa pilorum residuis obsita. Inflorescentiae 

 4.5-7 cm. latae, 6-7 cm. longae; flores ignoti; carpidia 3-5. Fructus 

 globosus, circiter 5-7 mm. diam., albus, sepalis subconniventibus. 

 Cetera ut in typo. 



Western Szech'uan: west and near Wen-ch'uan-Hsien, alt. 

 2300-2600 m., September 1908 (No. 864''); Mupin, woodlands, alt. 

 2000-2500 m., October 1908 (No. 864, in part; part of the fruiting 

 specimens and the flowering specimens belong to S. unguiculata 

 Koehne). 



Sorbus pogonopetala Koehne, n. sp. 



Frutex 3-5 m. altus; rami 2-3 mm. diam., nigricanti-cinerei; gem- 

 mae ignotae. Stipulae pleraeque herbaceae parvae, lineares v. lan- 

 ceolatae interdum bifidae, nonnullae siccae lineares interdum bifidae; 

 folia cum petiolo 1.2-1.8 cm. longo 6.5-11.5 cm. longa, (9-)10-ll-juga; 

 rhachis anguste alata, ut petiolus supra nigro-purpurea, versus apicem 

 viridis, subtus pallida ac laxe longe tenere villosa, interstitiis 0.5-1 cm. 

 longis; foliola inde a pari tertio v. quarto deorsum decrescentia, cetera 

 aequalia v. paria suprema tria decrescentia, basi hinc obtusiuscula 

 illinc acuta, latius angustiusve oblonga, media 1.2-2.2 cm. longa, 

 0.4-0.7 cm. lata, mucronato-cuspidata, basi Integra ceterum argutis- 

 sime serrulata dentibus utrinsecus circiter 4-12 subincurvis, supra 

 glabra, margine tenere ciliata, subtus pallide cano-viridia laxe tenere 

 villosa, nervis utrinsecus circiter 5-10 reticuloque tenerrimis subtus 

 saturatius coloratis, papyracea; epidermis supra laevis, subtus pro 

 parte laevis pro parte tenere irregulariter striata. Inflorescentiarum 

 suppetentium altera ramum elongatum altera ramulum brevissimum 

 lateralem terminans, 3.5-6 cm. latae, 5.5-6 cm. longae, subconvexae, 



