ROSACE AE. — PRUNUS 257 



Subscct. 13. CERASEIDOS (Siebold & Zuccarini) Koehne, n. subsect. 



Ceraseidos Siebold & Zuccarini in Abh. Akad. Miinch. III. 743 t. 5 (1843), 

 sensu ampliato. 



Ser. 1. Phyllopodium, n. ser. 



72. Prunus setiilosa Batalin in Act. Hort. Petrop. XII. 165 (1892); in Gartenfl. 

 XLII. 330 (1892). 



Eastern Kansu: near the monastery of Dshoni, May 31, 1885; in the high 

 pass between Minping and Wuping, July 3, 1885, G. N. Potanin (not seen). 



73. Prunus phyllopoda Koehne, n. sp. 



Rami tenues, annotini pilorum residuis hirtuli, pallide fuscescentes, vetustiorea 

 glabri, fusci. Folia juvenilia: stipulae anguste lineares, parvae, parce glanduloso- 

 fimbriatae; petioli 2-8 mm. longi, hirsuti; glandulae saepe 2-4 laminae basi inser- 

 tae, stipitatae; lamina e basi rotundata late ovata, circ. 3 cm. longa 2 cm. lata, 

 subacuminata, inciso-duplicato-serrata, dentibus latis, cuspidatis, glandula nulla 

 V. parum conspicua terminatis, utrinque densiuscule hirsuta, nervis utrinsccua 

 circiter 7, subtus vix pallidior. Involucra circiter 5 mm. longa; pedunculus ad 

 15 mm. longus, villosus; flores 1-2 umbellati, coaetanei; bracteae 2-4, infimis 

 sterilibus, euphyllis consimiles, infimis breviter petiolatis ad 20 mm. longis, superiori- 

 bus 13-6 mm. longis; pedicelli 10 mm. longi, tenere villosi; cupula 6.5 mm. longa, 

 3.5 mm. diam., suburceolata-tubulosa, dense villosa; sepala suberecta, anguste 

 oblongo-triangularia acuta, 3.5 mm. longa, Integra, ciUata, utrinque laxe villosa; 

 petala obovata, 5 mm. longa 4 mm. lata, haiid emarginata, leviter eroso-crenulata; 

 stamina 32, petalis paullo breviora, ad 3.5 mm. longa; pistillum 9 mm. longum; 

 stylus staminibus subbrevior, usque ad duas tertias partes dense lanato-villosus. 

 Drupa ignota. 



Northern Shensi: Ken-y-shan (Lao-y-shan), May 2, 1899, G. Giraldi. 



74. Prunus canescens Bois. See p. 215. 



75. Prunus Veitchii Koehne, n. sp. 



Frutex 0.6-2-metralis; rami annotini cani, glabri, vestustiores fusci v. cinereo- 

 fusci. Folia juvenilia sub anthesi tantum nota; lamina ad 22 mm. longa, 8 mm. 

 lata, longe acuminata, inciso-serrata dentibus bifidis acuminatis eglandulosis, supra 

 glabra, subtus praesertim in nervis pilis accumbentibus rigidulis obsita. Involucra 

 8-10 mm. longa; pedunculus nullus; flores 1-3 umbellati, subpraecoces; bracteae 

 subexsertae, euphyllis consimiles, subpetiolatae; pedicelli 8-13 mm. longi, glabri; 

 cupula 8-10 mm. longa, e basi acuta tubulosa v. leviter obconica, glabra; sepala 

 patentia, ovata v. oblonga, acuta, 4.5-5 mm. longa, Integra, glabra; petala ovata, 

 10 mm. longa, 7 mm. lata, emarginata; stamina 37, petahs subaequilonga, ad 9 

 mm. longa; stylus stamina aequans v. 3 mm. longior, glaber. 



Western Hupeh: Chang-yang, woods, alt. 2000 m., April 4, 1900, E. H. Wilson 

 (Veitch Exped. No. 66). 



The correct place of this species in the genus is not at all certain. 'NMien com- 

 pletely known, it may be necessary to transfer it to another group. 



Ser. 2. Droserina, n. sect. 



76. Prunus Giraldiana Schneider in Fedde, Rep. Nov. Sp. I. 65 (1905). 

 Northern Shensi: Quen-tou-shan, May 5, 1898, G. Giraldi (No. 3789). 



77. Prunus droseracea Koehne. See p. 215. 



