ROSACEAE. — PRUNUS i 209 
Western Szech’uan : south east of Tachien-lu, 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 earinam obsolete trisuleatus, 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 em. 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 
em. longa, 2.2-5.1 em. lata, subito longe acuminata, argute, raro hine 
inde duplieato-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- 
