146 WILSON EXPEDITION TO CHINA 



DEUTZIA Thunb.i 



Determined by Alfred Rehder. 



After the publication of my Synopsis of the Chinese Deutzias (see p. 15-25) I 

 had the opportunity of examining the material of this genus in the Herbarium of 

 the Museum d' Histoire Naturelle at Paris, where I found several undescribed 

 species; and a further examination of our unnamed specimens of the Henry col- 

 lection resulted in bringing to hght several Deutzias, three of which proved to be 

 undescribed. The descriptions of these new species and varieties are published 

 here as a supplement to my Synopsis of this genus. 



7. Deutzia pilosa Rehder. See p. 18. 



Deutzia pilosa, var. ochrophloeos Rehder, n. var. 



A typo recedit pilis simpUcibus v. fasciculatis patentibus ramulorum inflores- 

 centiaeque brevioribus et pallidioribus flavidis, foliis paullo longius petiolatis 

 densius pubescentibus supra pihs plerumque 5-radiatis subtus plermnque 6-radiati3, 

 rarius 7-radiatis conspersis, corymbis plurifloris, dentibus staminum exteriorum 

 antheram non superantibus. 



Kwei-chau: Kwei-yang, "mont du College 5,1a cascade," May 18, 1898, E. 

 Bodinier (No. 2216, in Herb. Mus. Paris). 



This variety differs from the type chiefly in the shorter and paler yellowish 

 pubescence, in the hairs of the lower sm-face having generally 6 rays and in the 

 larger inflorescence. No. 2216 is represented in the Herb. Mus. Paris by two 

 specimens, one having broader ovate leaves, the largest being 6 cm. long and 4 

 cm. broad, the other having smaller ovate-oblong leaves. 



Sb. Deutzia cinerascens Rehder, n. sp. 



Frutex ramulis erectis; ramuh hornotini stellato-pilosi, annotini fusci, glabri; 

 gemmae parvae, stellato-pilosae. FoUa decidua, crassiuscula, ovata v. ovato- 

 oblonga, longe acuminata, basi rotundata v. subcordata, denticulato-serrulata, 

 3-9 cm. longa et 1.5-3.5 cm. lata, supra obscure viridia, subrugulosa, pilis plerum- 

 que 5-, rarius 6-radiatis aspera, subtus cinereo-viridia, elevato-reticulata, villoso- 

 tomentosa, piUs 5-6-radiatis radio centraU instructis obtecta, nervis utrinsecus 

 6-8; petioU stellato-pilosi, 3-5 mm. longi. Inflorescentiae corymbosae, multi- 

 florae, pube homomorpha vestitae, bracteis purpurascentibus institutae, ter- 

 minalis ad 10 cm. diam., sessiUs, foliosa, laterales minores, plerumque pedunculatae 

 in apice ramuloriun foliorum v. interdum brevissimorum aphyllorum; pedicelli 

 1-2 nun. longi; flores parvi, albi; calycis tubus ut dentes dense pube homomorpha 

 vestitus, dentes triangulari-ovati v. oblongo-ovati, acuti v. acuminulati, tubum 

 dimidium paullo superantes, 1-1.5 mm. longi, purpuras centes; petala ovato- 

 oblonga, margine erosa, extus stellato-pilosa, 4 mm. longa; stamina petalis dimidio 

 breviora, erecta, subaequilonga, filamentis alatis, exterioribus apice bidentatia 

 dentibus quam anthera brevissime stipitata brevioribus, interioribus hneari- 

 oblongis antheram circa medium affixam gerentibus et superantibus v. earn infra 

 apicem gerentibus et ea paullo brevioribus, apice obtusiuscula v. erosa v. obsolete 

 bidentata; styli 3, 2.5 mm. longi, stamina subaequantes. Capsula desideratm-. 



Kwei-chau: gorges of the river Hoa-kiang, April 22, 1897, E. Bodinier (No. 

 1569, in Herb. Mus. Paris); near Hoang-ko-ch'ou (Tchen-lin), April 1898, J. 

 Liguin {E. Bodinier, No. 1569, in Herb. Mus. Paris). 



» See also p. 6. 



