ROSACE AE . — PRUNUS 221 



Western Szech'uan: west of Tachien-lu, alt. 3200 m., July 24, 

 1908 (No. 912): Tachien-lu, woods, alt. 2300-3000 m., September 

 1908 (No. 978); west and near Wen-ch'uan Hsien, alt. 2000-2800 

 m., August 1808 (No. 810, as to fruiting branches. The flowering 

 branches belong to P. Twymaniana, which is very different in the 

 large glands of the serratures of the leaves). 



The species seems very near to P. stipulacea Maximowicz which is very similar 

 in fohage. 



Prunus pleuroptera Koehne, n. sp. 



Arbor 3-10-metralis, truncus ad 30 cm. diam.; rami hornotini hirti, 

 vetustiores subglabri v. glabri, cinerei v. nigricantes; gemmae 3 mm. 

 longae, parce v. uberius pilosae. Stipulae oblongae v. lineares, 4-5 

 mm. longae, glanduloso-fimbriatae, pro parte persistentes; petioli 5-11 

 mm. longi, glabri, subtus plerumque in transversum undulato-corrugati ; 

 glandulae 2, laminae basi insertae, breviter stipitatae; lamina e basi 

 acuta V. vix emarginata obovata, obovato-oblonga v. rhombeo-ob- 

 longa, 1.7-6 cm. longa, 1.1-3 cm. lata, paullatim v. rarius subito acumi- 

 nata, inciso-duplicato-serrata, dentibus circiter tam longis quam latis, 

 acuminatis, glandula punctiformi terminatis, supra parcissime stri- 

 gulosa V. demum subglabra, subtus in costa nervisque laxe hirta ceterum 

 glabra v. sparsim pilosa, costa subtus utrinque anguste albido-alata, 

 nervis utrinsecus 7-10, subtus manifeste pallidior atque subcanoviridis, 

 papyracea. Flores ignoti. Pedunculus nullus; bracteae caducae; 

 pedicelli fructiferi solitarii, 10-13 mm. longi, glabri, incrassati. Drupa 

 globosa, 11-13 mm. longa, nigra; putamen rotundatum, 7-7.5:6.5- 

 6.6:5-5.2 mm., validiuscule sulcatum ac manifeste v. obsoletissime 

 foveolatum, carina complanata. 



Western Szech'uan: southeast of Tachien-lu, woods, alt. 2300- 

 3000 m., August 1908 (No. 981); Tachien-lu, woods, alt. 2300-3000 

 m., September 1908 (No. 984). 



Prunus pleuroptera differs from the allied P. lobulafa Koehne and P. stipulacea 

 Maximowicz in its black fruit and globular not ovoid stones. 



Prunus Zappeyana Koehne, n. sp. 



Frutex 5-metralis; rami hornotini glabri v. ima basi hirti, vetustiores 

 pallide cani v. fusci; gemmae 2 mm. longae, glabrae, Stipulae ovatae 

 ad lineares, 3-6 mm. longae, glanduloso-fimbriatae, pleraeque persis- 

 tentes; petioh 7-10 mm. longi, glabri; glandulae 1-4, laminae basi 

 insertae, breviter stipitatae; lamina e basi obtusa rhombeo-obovato- 

 oblonga v. obovato-oblonga, 1.8-8 cm. longa, 0.8-3.5 cm. lata, sat 



