Tap. 8255. 
DEUTZIA sercHvENENSIs. 
=— 
China. 
SAXIFRAGACEAE. Tribe HyDRANGEAE. 
Devrzia, Thunb.; Benth. et Hook. f. Gen, Plant. vol. i. p. 642. 
Deutzia setchuenensis, ranch. in Journ. de Bot. 1896, vol. x. p. 282; affinis 
D. stamineae, R. Br., a qua foliis longioribus acuminatis, ramulis floriferis 
longioribus, inflorescentia corymbiformi recedit. 
Suffrutec, ramis cinereis glabris, cortice deciduo; ramuli floriferi stellato- 
puberuli. .Yolia lanceolata vel ovato-lanceolata, longe acuminata, basi 
rotundata, 5-10 em. longa, 1°5-3 em. Jata, chartacea, serrulata, utrinque - 
stellato-puberula, nervis primariis utrinque 3-4 arcuatis supra obscuris 
subtus leviter elevatis; petioli 3-5 mm. longi, stellato-puberuli, supra 
profunde suleati. Inflorescentia corymbiformis, multiflora, ramis quadran- 
gularibus, bracteis linearibus usque ad 5 mm. longis. lores albi, circiter 
1-5 em. diametro. Receptaculum 1°5 mm. longum, extra dense stellato- 
tomentosum. Calycis tubus brevis, segmentis late triangularibus subacutis 
1 mm. longis basi 1-5 mm. latis. Petala ovato-elliptica, subacuta, 6-7 mm. 
longa, 5-6 mm. lata, extra breviter stellato-pilosa, pilis 8-10-radiatis, intus 
glabra. Stamina antisepala 4 mm. longa, apice alte bilobata, antipetala 
2 mm. longa, apice laciniata. Styli distincti, 2°5 mm. longi. Capsula 
subglobosa, circiter 5 mm. diametro, stellato-puberula. D. corymbiflora, 
Lemoine in Gard. Chron. 1898, vol. xxiv. p. 265.—J. Hutcninson. 
Deutzia setchuenensis is closely related to the Himalayan 
D. staminea, R. Br., but is distinguished from that species 
by the larger and more acuminate leaves, the longer lateral 
flowering branchlets and the more spreading inflorescences. 
The form described as D. corymbiflora, Lemoine, has been 
identified by Mr. Franchet with this species; Mr. 
Hutchinson, however, points out that Lemoine’s plant, as 
figured in 1902 (Rev. Hort. Belge, vol. xxviii. p. 157) 
appears to have smaller, less acuminate leaves and pinkish 
white flowers, 
One of the most beautiful members of the genus, D. 
setchuenensis, like many other North Asian shrubs, is often 
excited into premature growth by warm days in early spring, 
and on this account its young shoots and flower-buds are 
frequently destroyed by late frosts. This seriously affects 
its value as a garden-shrub, though it is perfectly hardy in 
May, 1909. 
