EOS ACE AE . — PRUNUS 217 



This species is closely related to P. latidentata Koehne, which has the same kind 

 of pubescence on the lower surface of the leaves. If the pubescence in.side the 

 sepals should prove to be variable, the species ought to be referred as a variety to 

 P. latidentata. 



Prunus latidentata Koehne, n. sp. 



Arbor 5-13-metralis; truncus 10-50 cm. diam.; rami juveniles 

 dense pilosi, mox glabrati, tenues, vetustiores cani v. cano-fusci; 

 gemmae ad 2.5 mm. longae, glabrae. Stipulae angustissime lineares, 

 2.5-5 mm. longae, glanduloso-fimbriatae ; petioli 7-10 mm. longi, 

 glabri; glandulae saepius 1-2, laminae basi insertae, interdum stipita- 

 tae; lamina basi acuta, rotundata v. subemarginata, ovata, obovata 

 V. obovato-oblonga, 2-5 cm. longa, 1.2-2.4 cm. lata, sat subito acumi- 

 nata, profunde duplicato-, basi apiceque simpliciter serrata, dentibus 

 latioribus quam longis, breviter acuminatis, glandula punctiformi 

 terminatis, supra in costa albo-pubescens ceterum pilis brevissimis 

 teneris conspersa v. demum glabrata, subtus juxta costam glabram 

 V. parce pilosam longe dense crispato-villosa ceterum initio interdum 

 in facie neque vero in nervis pilosa, nervis utrinsecus 7-11, subtus 

 parum pallidior, membranacea. Involucra ante anthesin decidua 

 residuis paucis persistentibus; pedunculus brevissimus; flores 1-2 

 (-3) umbellati, coaetanei foliis simul 2.5-3.5 cm. longis; bracteae 

 deciduae, paucae persistentes 2 mm. longae, fuscae; pedicelli 8-25 

 mm. longi, basi parce pilosi v. raro glabri; cupula 5.5-6.5 mm. longa, 

 breviter latiuscule campanulata, glabra; sepala erecto-patula, late 

 ovato-triangularia acutiuscula, 2-3 mm. longa, utrinsecus denticulis 

 1-4 teneris munita; petala ovata, 5-6 mm. longa, 3.5-5 mm. lata, 

 baud emarginata, subintegra, alba v. pallide carnea; stamina 32-35, 

 petalis subaequilonga, ad 4-6 mm. longa; pistillum 15-16 mm. longum, 

 stylus staminibus 4-6.5 mm. longior, glaber v. basi pilis paucis consper- 

 sus. Drupa globosa, 9 mm. diam., rubra; putamen rotundatum, 

 7.6:7:5.3 mm., valide sulcatum et foveolis paucis munitum, carina lata 

 complanata. 



Western Szech'uan: west of Kuan Hsien, woodlands, alt. 2000- 

 3000 m., June 1908 (No. 2820); Tachien-lu, woodlands, August 1808 

 (No. 2819, with flowering branches without date); western China, 

 ravines, alt. 4000 m., June 1909 (Veitch Exped. No. 3524); woods, 

 May 1904 (Veitch Exped. No. 3528, doubtful on account of the too 

 scant material). 



