150 WILSON EXPEDITION TO CHINA 
tibus; petala ovali-oblonga, in aestivatione valvata, 10-15 mm. longa, alba extus 
purpurascentia v. lilacina, extus stellato-pilosa; stamina petalis dimidio breviora, 
filamentis late alatis, exterioribus apice bidentatis dentibus obtusis antheram 
breviter stipitatam non superantibus, interioribus paullo brevioribus lineari- 
oblongis antheram breviter stipitatam infra apicem affixam gerentibus et ea paullo 
brevioribus v. interdum antheram circa medium affixam gerentibus et eam superanti- 
bus; styli 34, stamina subaequantes, 6-8 mm. longi. Capsula matura desideratur. 
Yunnan: Mt. “Pi-ion-se,” above Ta-pin-tze, near Ta-li, June 11, 1883, J. M. 
Delavay; Fang-yang-chang, alt. 3000 m., June 7, 1888, J. M. Delavay (No. 3543); 
woods above Che-tong, above Ta-pin-tze, May 18, 1886, J. M. Delavay (all in 
Herb. Mus. Paris). 
Most nearly related to D. longifolia Franchet, which is easily distinguished by 
the close whitish tomentum of the under side of the narrower leaves, the usually 
close whitish tomentum of the calyx, and the shorter calyx-lobes. In the pubes- 
cence of the under side of the leaves it resembles D. glomeruliflora Franchet, but in 
that species the hairs of the under side have only 4 to 5 rays, the leaves are smaller 
and narrower and the flowers white and the calyx-lobes shorter. By Franchet 
the specimens quoted above had been referred to his D. longifolia, while I had taken 
the specimen from Fang-yang-chang, of which I had received some fragments from 
Paris as typical D. longifolia, for D. glomeruliflora. 
31b. Deutzia sessilifolia Pampanini in Nuov. Giorn. Bot. Ital. XVIII. 227 (1911). 
Hupeh: “ Monte Si-ho,” July 1909 C. Silvestri, (Nos. 3001, 30012 ex Pampanini). 
'This species, of which I have seen no specimen, seems most closely related to 
D. glabrata Komarov, but it is easily distinguished by the sessile or connate leaves. 
With the species enumerated and described above the total number of species 
of the genus Deutzia occurring in China reaches 41. Besides these 6 others occur 
in eastern Asia and in the Himalayas, which are all mentioned in my Synopsis 
except D. uniflora Shirai (in Tokyo Bot. Mag. XII. 110, t. 5 (1898)) which seems most 
nearly related to D. grandiflora Bunge, but differs in its one-flowered lateral in- 
florescence with only small or without any leaves at the base; by the latter character 
it approaches D. coreana Léveillé, but that species is easily distinguished by the 
ovoid calyx-tube with short triangular lobes, the very short pedicels not exceeding 
om bud-scales and by the hairs of the lower surface of the leaves having generally 
rays. 
One more species forming the section Neodeutzia occurs in Mexico; this is 
D. mexicana Hemsley including D. mexicana, var. Pringlei Schneider originally pro- 
posed as a distinet species by the same author. The whole genus, therefore, con- 
tains at present 48 species. 
HYDRANGEA L. 
Determined by ALFRED REEDER. 
Hydrangea xanthoneura, var. Wilsonii Rehder. See p. 27. 
The paragraph under H. xanthoneura, var. glabrescens Rehder containing the 
Nos. 1183, 1327, 1347, 2398 and 10235 has been misplaced; it belongs under 
H. zanthoneura, var. Wilsonii, and should constitute the fourth paragraph under 
this variety. 
1 See also p. 25-41. 
