ROSACEAE. — 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 Wén-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 Maximowiez which is very similar 
in foliage. 
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 em. 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., validiuseule suleatum 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. lobulata Koehne and P. stipulacea 
aximowicz 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; petioli 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. cm. lata, sat 
