446 WILSON EXPEDITION TO CHINA 
Spiraea ovalis Rehder, n. sp. 
Frutex 2-3-metralis ramis virgatis; ramuli teretes, glabri, hornotini 
purpurascentes, annotini fusci; gemmae ovoideae, parvae, obtusius- 
culae, pubescentes, perulis pluribus imbricatis obtectae. Folia decidua, 
ovalia, obtusa, rarius acutiuscula, integra, interdum apice crenato- 
serrata, basi late cuneata v. fere rotundata, 1.5-2 em. longa et 0.6-1.2 
em. lata, supra laete luteo-viridia, glabra, subtus pallide viridia, reti- 
culo nervorum colore obscuriore conspicuo, glabra v. secus costam 
basim versus pilis sparsis instructa, nervis utrinsecus 3-4 subtus leviter 
elevatis; petioli graciles, purpurascentes, glabri, 1-3 mm. longi. 
Corymbus multiflorus convexus, glaberrimus, in apice ramulorum plu- 
rifoliatorum 2-3 cm. longorum, 2.5-3.5 em. diam.; flores albi, 5 mm. 
diam.; calycis tubus late turbinatus, extus glaber, purpurascens, intus 
breviter pilosus, dentes ovato-triangulares, acuti, intus apice villo- 
suli; petala suborbicularia, 1.5 em. longa et 2 mm. lata; stamina 20, 
petalis subaequilonga; discus conspicuus, 10-lobatus, lobis distinctis 
apice et dorso leviter sulcatis; carpidia sparse villosa, stylis apicali- 
bus quam dimidia stamina paullo brevioribus. Fructus maturus 
desideratur. 
Western Hupeh: Fang Hsien, thickets, rare, alt. 2000-2300 m., 
June 16, 1910 (No. 4573). 
Allied to S. Veitchii Hemsley, which is easily distinguished by the pubescent 
inflorescence, the smaller flowers and by the puberulous branchlets and leaves. 
Spiraea Blumei G. Don, Gen. Syst. II. 518 (1832). — Maximowicz 
in Act. Hort. Petrop. VI. 196 (1879). — Morren in Belg. Hort. VIII. 
131, t. 37, fig. 2 (1858). — Siebold in Jaarb. Maatsch. Aanmoed. Tuinb. 
1845, 76, t. 8. — Zabel, Strauch. Spir. 44 (1893). — Schneider, IU. 
Hand). Laubholzk. Y. 465, fig. 200 v-x, 291 h (1905). 
Spiraea chamaedrifolia Blume, Bijdr. Fl. Ned. Ind. 1114 (pro parte, non Lin- 
naeus) (1826). 
Kiangsi: Kuling, abundant, alt. 1300 m., July 30, 1907 (No. 1721; 
shrub 1-2 m. high). Western Hupeh: Hsing-shan Hsien, ravines, 
etc., alt. 600-1300 m., August 6, 1907 (No. 2769; shrub 0.6-1.20 m. 
high, flowers white); Ichang, A. Henry (No. 3570); without precise 
locality, A. Henry (No. 1181); “Ma-pan-scian,” alt. 1000 m., May 
1907, C. Silvestri (No. 1026). Eastern Szech'uan: Taning Hsien, 
thickets, alt. 2000 m., June 25, 1910 (No. 4570). Shensi: ''Kin-gua- 
san," July 10, 1897, G. Giraldi. 
