212 WILSON EXPEDITION TO CHINA 
v. glabra, nervis utrinsecus 9-12, subtus vix pallidior, papyracea. 
Involuera sub anthesi omnia persistentia v. magna ex parte decidua, 
6-12 mm. longa, 4-9 mm. lata; pedunculus brevissimus v. rarius ad 
10 mm.longus; flores (1-)2-4(-5) umbellati v. rarius breviter racemoso- 
umbellati, praecoces; bracteae ante anthesin deciduae; pedicelli 5-18 
mm. longi, glabri; cupula 4-5 mm. longa, e basi obtusa crassius- 
cule campanulato-tubulosa, glabra; sepala erecto-patula v. patentia, 
ovata v. ovato-triangularia obtusiuscula, 2.5-4 mm. longa, integra, 
glabra v. tenere ciliolata; petala ovata v. obovata, 10-12 mm. longa, 
7-7.5 mm. lata, bilobo-emarginata sinu triangulari-aperto, alba ad 
rosea; stamina 33-43, petalis paullo v. quarta parte breviora, ad 8- 
10 mm. longa; pistillum 11-13 mm. longum, stylus staminibus sub- 
brevior v. sublongior, glaber. Drupa ovalis, 8-11 mm. longa, 5-9 
mm. diam., rubra; putamen ovale, 6.5-8:4.5-5.3:4-4.3 mm., sulcis 
obsoletissimis juxta carinam planam. 
Western Hupeh: Changyang Hsien, woods, alt. 1000—1500 m., 
April and June 1907 (No. 3, mixed with fruiting branches of P. 
malifolia Koehne); Changyang Hsien, woodlands, alt. 1000—1200 
m., flowers, without date, fruiting specimens, June 1907 (No. 5); 
Changyang Hsien, woods, alt. 1000-1200 m., April and June 1907 
(No. 7); Changyang Hsien, woodlands, common, alt. 1000-1200 m., 
April and June 1907 (No. 11); north and south of Ichang, woods, alt. 
600-1600 m., March and July 1907 (No. 35); Ichang, cultivated, — 
March 14, 1900 (Veitch Exped. No. 152). 
This species is named for the wife of the author. 
Prunus Helenae Koehne, n. sp. 
Prunus rufoides, var. glabrifolia Schneider in Fedde, Rep. Nov. Sp. I. 56 (1905) 
verisimiliter hue ducenda. 
Arbor 4-6-metralis; ramuli hornotini glabri, fusci, annotini intense 
fusci, submicantes; gemmae 1.5 mm. longae, glabrae. Stipulae 
ignotae; petioli 12-18 mm. longi, glabri, glandulas 1-3 crassas prope 
apicem v. pro parte medio gerentes; lamina e basi subcordata V. 
rotundata ovata, ovato-oblonga v. obovato-oblonga, 7.5-11.5 em. longa, 
3.8-5.3 cm. lata, anguste acuminata, profunde argute duplicato-serrata 
dentibus vix acuminatis, glandula parva, breviter conica terminatis, 
glabra v. subtus in nervorum axillis barbulata, nervis utrinsecus 7-12, 
subtus vix pallidior, membranacea. Involucra sub anthesi persistentia, 
1-1.4 em. longa, 0.8-1 em. lata, erecta; pedunculus nullus v. brevis- 
simus; flores 3 umbellati, praecoces; pedicelli 8-15 mm., fructiferi ad 18 
