22 WILSON EXPEDITION TO CHINA 
Mongolia: Tatarinoff (ex Maximowiez). Chili: near Kalgan, Ladyshinski 
(ex Maximowicz). : 
Of this variety I have seen no specimen; it differs according to Maximowicz in 
its smaller leaves and flowers and shorter styles. 
Deutzia grandiflora, var. y glabrata Maximowicz in Mém. Acad. Sci. St.Péters- 
bourg, sér. 7, X. No. XVI. 31 (1867) 
Chili: near Pekin, Tatarinoff. 
24. Deutzia prunifolia Rehder, n. sp. 
Frutex erectus ramulis junioribus glabris pallide fusco-brunneis, vetustioribus 
griseo-brunneis. Gemmae perulis circa 10 exterioribus, ovato-lanceolatis acutis, 
extus sparse stellato-pilosis, castaneis. Folia ovata, v. rhombico- v. elliptico- 
ovata, acuminata, basi late euneata, inaequaliter v. fere dupliciter fimbriato-den- 
ticulata, dentibus minutis acuminatis, 3.5-5 cm. longa et 1.5-3 cm. lata, flavo- 
viridia, concoloria, supra pilis 4—5-radiatis laxe conspersa, subtus glabra pilis 
simplicibus ad costam mediam et paucis ad basin costarum lateralium exceptis, 
interdum facie pilis rarissimis 5-radiatis instructa, utrinsecus costis 5-7 supra im- 
pressis subtus elevatis; petioli glabri, 3-5 mm. longi. Flores desunt. Capsulae 
1-3 in apice ramulorum, solitariae pedicellis glabris gracilibus circa 1 em. longis, 
binae v. ternae pedunculo 1-1.5 cm. longo insidentes pedicellis circa 5 mm. longis; 
capsula (immatura) depresso-globosa, circa 5 mm. diam., extus glabra, semisupera, 
apice ovarii et basi stylorum 3—4 sparse stellato-pilosa, dentibus calycis lanceolatis 
reflexis tubum saltem aequilongis partim persistentibus. 
Korea: Ping Yang, September 18, 1905, J. G. Jack (Herb. Arnold Arboretum). 
Closely related to D. grandiflora Bunge, and particularly to its glabescent variety 
y glabrata which, however, differs in the shorter petioles, the shorter scarcely acum- 
inate teeth of the leaves, and their less prominent venation, in the hairs of the upper 
surface having usually 5-6 rays and those of the lower surface 6-8 rays and also in 
the shorter peduncles and pedicels. Deutzia hamata Koehne, which is similar in 
foliage, differs in the peculiar development of the pubescent calyx. 
25. Deutzia hamata Koehne in Bot. Jahrb. XXXIV. No. LXXV. 37 (1905). 
Shan tung: Laushan Mts., Zimmermann (Nos. 335, 348 ex Koehne). 
This species is well marked by the peculiar development of the calyx which has 
the margin ineurved forming a hollow ring open toward the apex of the ovary and 
partir covering it; the spreading lanceolate calyx-lobes are borne on the outside of 
e ring. 
Subsect. 5. COREANAE Rehder, n. subsect. 
Distinguished from all the other Deutzias by the solitary or rarely two flowers 
appearing from leafless buds and borne on short stalks hidden by the bud-scales; 
calyx-tube ovoid, truncate at the apex with short triangular lobes; styles slender, 
3; leaves on both sides sparingly covered with hairs with 4-5 rays. 
A pape — ghe > Fedde, Rep. Sp. Nov. VIII. 283 (1910). 
orea: . June 1908, U. Faurie (No. 364); Pouck Han, Seo 
September 25, 1905, J. G. Jack. ; begin E. 
The leaves are sparingly furnished on both sides with stellate hairs, those of the 
upper side having generally 4, those of the under side generally 5 rays; the capsule 
is about 4 mm. long, distinctly longer than broad and thinly eovered with stellate 
bairs having 6—7 rays; styles 3.10 mm. long. 
Sect. II. MESODEUTZIA Schneider in Mitt. Deutsch. Dendr. Ges. XIII (1905). 
27. Deutzia mollis Duthie. See p. 13. 
28. Deutzia corymbosa R. Brown apud Royle, Ill. Bot. Himal. 216, t. 46, fig. 2 
