ROSACEAE. — PRUNUS 209 



Western Szech'uan : south east of Tachien-Iu, woods, alt. 2300- 

 2600 m., July 1908 (No. 907). 



Prunus hirtifolia Koehne, n. sp. 



Arbor 8-metralis; rami hornotini dense rufo-hirsuti, annotini glabri, 

 cinerei; gemmae 2 mm. longae, glabrae. Stipulae lanceolatae v. ob- 

 longae, 8-10 mm. longae, margine glandulis validis conicis, interdum 

 stipitatis ornatae; petioli 10-15 mm. longi, dense rufo-hirsuti, glandulis 

 plerumque 1-2 petioli apice v. laminae basi insertis; lamina e basi 

 acuta V. rotundata ovata v. obovata v. obovato-oblonga, 5-13.5 cm. 

 longa, 3-5.7 cm. lata, subito anguste acuminata, grosse duplicato-, 

 basi apiceque simpliciter serrata, dentibus argute acuminatis glandula 

 parva terminatis, supra sparsim pilis brevibus rigidulis conspersa, 

 subtus dense v. inter nervos laxiuscule hirto-villosa, nervis utrinsecus 

 circiter 10-14, costa subtus ochracea, subtus vix pallidior, membranacea. 

 Flores ignoti. Involucra decidua; pedunculus fructifer nullus v. ad 

 10 mm. longus, dense pilosus; bracteae solitariae, rotundatae, 5 mm. 

 longae, glandulis marginalibus sessilibus; pedicellus in pedunculo 

 solitarius, 17-24 mm. longus, dense hirsutus. Drupa ovalis, 9 mm. 

 longa, 6.5 mm. lata, verisimiliter rubra; putamen subrotundatum, 

 7:6:5 mm., juxta carinam obsolete trisulcatus, foveolis obsoletissimis. 



Western Szech'uan: Pan-lan-shan, west of Kuan Hsien, wood- 

 lands, alt. 2300-2600 m., June 1908 (No. 2818). 



Prunus tenuiflora Koehne, n. sp. 



Arbor 4-15-metralis; truncus 10-30 cm. diam; ramuli novelli glabri, 

 vetustiores cinerei v. intense fusci; gemmae (mense Julio) vix ultra 

 2 mm. longae, glabrae. Stipulae angustissime lineares, 9 mm. longae, 

 basi interdum pinnatifidae, longe glanduloso-fimbriatae, deciduae, 

 petioli 10-20 mm. longi, supra dense dein laxius albo-villosi v. demum 

 glabri, glandulis saepe 1-2 petioli apici, rarius laminae basi insertis; 

 lamina e basi cordata v. rotundata obovata v. ovato-oblonga, 4.5-9.5 

 cm. longa, 2.2-5.1 cm. lata, subito longe acuminata, argute, raro hinc 

 inde duplicato-serrata, dentibus acuminatis, glandula punctiformi 

 v. capitata terminatis, supra glabra v. raro initio pilis conspersa, subtus 

 glabra, nervis utrinsecus circiter 8-9, supra subpallida, subtus parum 

 pallidior, demum papyracea. Involucra sub anthesi persistentia, erecta 

 V. patentia, circiter 1 cm. longa, 0.5 ad fere 2 cm. lata; pedunculus 

 4-11 mm. V. sub fructu ad 20 mm. longus, pubescens v. glaber; flores 

 1-3 umbellati v. subumbellati, coaetanei, foliis simul ad 4 cm. longis; 

 bracteae cuneato-obovatae v. oblongae, 3-6 mm. longae, glanduloso- 



