64 WILSON EXPEDITION TO CHINA 



Prunus sericea, var. Batalinii Koehne, n. var. 



Arbor 5-metralis (Potanin) v. 13-22-metralis (Wilson); ramuli 

 novelli glabri. Folia e basi rotundata v. acuta elliptica v. inverse 

 oblonga (in innovationibus 9.5-13: 3-5.5 cm., in ramulis florentibus 

 paullo minora), longitudine latitudinem saepe triplam aequante, 

 durante evolutione subtus insigniter densissime candido-sericea, 

 postea pilis perturbatis densis, sed paginam inferiorem baud abscon- 

 dentibus cinereo-hirtella. Racemorum axes pedicellique tenere brevi- 

 ter pilosi, cupulae glabrae, sepala tenere ciliata, ceterum glabra; pe- 

 tala 4 mm. longa, 3 mm. lata, vix eroso-denticulata; stamina 27-32, 

 ad 5 mm. longa; stylus sepalis sublongior. Fructus 16 mm. longus, 

 subglobosus, niger; putamen ovatum, 12.9 mm. longum, 8.6 mm. diam. 

 V. 10.8 mm. longum, 8.8 mm. diam. laeve. 



Western Szech'uan: Ya-chu, April 7, 1893, G.N. Potanin; Wa- 

 shan, alt. 1200-1800 m., September 1908 (No. 222^"). Western 

 Hupeh: Pao-k'ang, 1901 (Veitch Exped. No. 277, fruiting branches; 

 the flowering branches of this No. belong to P. Wilsonii). 



Prunus sericea, var. brevifolia Koehne, n. var. 



Arbor 10-13-metrahs trunco 0.45-0.60 m. diam.; ramuli juniores 

 basi interdum pulverulento-puberuli, ceterum glaberrimi. Folia e 

 basi plerumque rotundata oblongo-obovata v. obovata v. late ovalia 

 (5.5-9.5 cm.: 2.7-5 cm.), longitudine latitudinis 2.3-2.6 aequante, 

 durante evolutione subtus tomento flavo-cinereo densissimo obtecta, 

 venarum reticulo nigrescente conspicuo, postea ut in typo subtus pilis 

 perturbatis densisque neque vero paginam inferiorem abscondentibus 

 cinereo-hirtella. Racemi 9-12 cm. longi, axi pedicellis cupulis sepalis 

 dense fuscescenti-hirtellis; pedicelli 4-5 inm. longi; cupula 4 mm. 

 longa, 5 mm. lata, profunda semiglobosa, intus glabra (ut in omnibus 

 Pachypodii speciebus) ; sepala late breviter lingulata, apice rotundata, 

 dense ciliata, glandulisque singulis margine obsita; in floribus nondum 

 evolutis petala 4 mm., stamina 32 circ. 5 mm. longa, stylus sepala 

 baud aequans, glaber. Fructus ignotus. 



Western Hupeh: north and south of Ichang, woods, alt. 600- 

 1200 m.. May 1907 (No. 127, as to flowering branches; the fruiting 

 branches belong to P. Wilsonii, var. leiobotrys).^ 



1 Another new variety, but not represented in the Wilson collection is the 

 following : 



Prunus sericea, var. septentrionalis Koehne, n. var. 



Racemi axis pediceUique glaberrimi. 



Northern Shensi: In-kia-po, G. Giraldi (No. 6081.) 



