SAXIFRAGACEAE. — DEUTZIA 9 



Western Szech'uan: Chin-ting-shan, thickets, alt. 1200-1500 m., 

 May 25, 1908 (No. 2895). 



Differs from the type chiefly in its elongated filaments much exceeding the 

 anthers as well in the interior as in the exterior stamens, in the smaller cymes and 

 in the green only sparingly stellate-pubescent under side of the leaves. This may 

 be a distinct species, if the characters should prove to be constant, but as the ma- 

 terial at hand is meagre and does not seem of quite normal development, it may be 

 referred provisionally to D. selchuenensis as a variety. 



Deutzia setchuenensis var. corymbiflora Rehder, n. var. 

 Deutzia corymbiflora Lemoine in Gard. Chron., ser. 3, XXIII. 121; XXIV. 265, 



fig. 76 (1898); in Rev. Hort., 1898, 401, fig. 138; in Rev. Hart. Belg. XXV. 



67 (1898). — Schneider in Mitt. Deutsch. Dendr. Ges. XIII. 180 (1904). 

 Deutzia setchuenensis Hutchinson in Bot. Mag. CXXXV. t. 8255 (1909). 

 Deutzia corymbiflora erecta Lemoine in Jour. Soc. Hort. France, s6t. 4, III. 308 



(1902). 



Western Hupeh: Fang Hsien, thickets, alt. 900-1500 m., June 

 1910 (No. 4486). — Originally introduced into cultivation from east- 

 ern Szech'uan. 



Differs from the type chiefly in the denser more or less heteromorphous pu- 

 bescence of the leaves and the many-flowered inflorescence with the pedicels as 

 long or shorter than the calyx. Deutzia corymbiflora erecta Lemoine differs slightly 

 in its more ascending branchlets, smaller inflorescence and narrower leaves with 

 sometimes nearly homomorphous pubescence. The Deutzia figured by Burvenich 

 (in Rev. Hort. Belg. XXVII. 157, t.) as D. corymbiflora does not belong here, but is 

 apparently D. purpurascens (Franchet) Rehder or one of its hybrids. 



Deutzia coriacea Rehder, n. sp. 



Frutex metralis ramulis annotinis cinereo-fuscis peridermate tarde 

 decorticante, hornotinis fusco-flavidis glabris. Gemmae parvae perulis 

 4 exterioribus stellato-pilosis. Folia coriacea partim per secundum 

 annum persistentia, ovata, acuminata, basi rotundata v. late cuneata, 

 spinoso-dentata, 3-5.5 cm. longa et 2-3 cm. lata, supra glaberrima, 

 nitida, flavido-viridia, subtus pallide viridia, pilis minutis, 5-7-radiatis 

 conspersa, utrinsecus 4-6-costata; petioli purpurascentes, glabri, 

 5-7 mm. longi. Cymae e gemmis lateralibus et terminalibus aphyllis 

 orientes, pedunculo 2-5 mm. longo, rarius longiori insidentes, 5-9- 

 florae; flores desiderantur. Capsulae breviter pedicellatae, ovoideo- 

 hemisphericae leviter costatae, circa 4 mm. longae, pube homomorpha 

 stellate vestitae; calycis dentes capsula dimidio breviores, late triangu- 

 lares, erecti v. leviter incurvi; styli 3, circa 2 mm. longi, persistentes. 



Eastern Szech'uan: Taning Hsien, limestone cliffs, alt. 600 m., 

 June 26, 1910 (No. 4481). 



Deutzia coriacea is a very striking species with its coriaceous lustrous almost 

 spiny fohage; it is most nearly related to D. Fargesii Franchet, which is easily dia- 



