SAXIFRAGACEAE. — DEUTZIA 21 
rays in D. discolor and generally 4 rays with & central ray in D. mollis, while in 
the hybrid they have generally 8 rays only part of them with a central ray; the 
calyx-lobes, which are lanceolate and longer than the tube in D. discolor and 
broadly ovate, abruptly acuminate and about half as long as the tube in D. mollis, 
are oblong-ovate, acuminulate and about as long as the tube in the hybrid; the 
filaments, which are gradually narrowed toward the apex in D. mollis and distinctly 
toothed in D. discolor, are in the hybrid mostly abruptly contracted or have only 
very short teeth; also the shape of the leaves and some other minor characters are 
intermediate. 
20. Deutzia densiflora Rehder. See p. 12. 
21. Deutzia albida Batalin in Act. Hort. Petrop. XIII. 97 (1893). 
Deutzia discolor, var. albida Schneider in Mitt. Deutsch. Dendr. Ges. XIII. 183 
(1904). 
Kansu: banks of the river Pai-shui between Lidshapu and Kwantin, G. Potanin 
(ex Batalin). 
Ihave not seen the type specimen, but according to the description the species 
differs from D. discolor in so many points that I cannot follow Schneider in referring 
it to that species as a variety. 
22. Deutzia longifolia Franchet. See p. 13. 
Subsect. 4. GRANDIFLORAE Rehder, n. subsect. 
Chiefly characterized by the 1-3-flowered inflorescence borne at the end of short 
leafy branchlets, by the partly superior ovary, the lanceolate calyx-teeth and the 
re-curved teeth of the filaments. 
23. Deutzia grandiflora Bunge in Mém. Sav. Étr. Acad. Sci. St. Pétersbourg II. 104 
(Enum. Pl. Chin. Bor.) (1832). — Maximowiez in Mém. Acad. Sci. St. Pélersbourg, 
sér. 7, X. No. XVI. 30 (1867). 
D. Baroniana, var. insignis Pampanini in Nuov. Giorn. Bot. Ital. n. ser. XVII, 
282 (1910). 
Chihli: A. Bunge; Kalgan road near Pekin, October 5, 1905, J. G. Jack; Wei- 
chang, 1910, W. Purdom (No. 16). Hupeh: April 1901, E. H. Wilson (Veitch 
Exped. No. 1870); Ou-tan-shan, C. Silvestri (ex Pampanini). 
The Hupeh specimens differ from the type in their narrower leaves and in the 
elongated and somewhat wavy rays of the hairs of the under side of the leaves, so 
that the tomentum appears more villose and not as closely appressed as in the 
type; in this respect it approaches the following variety. I have seen no specimen 
of Pampanini’s var. insignis, but from his description it appears not to be differ- 
ent from typical D. grandiflora. 
Deutzia grandiflora, var. Baroniana Rehder, n. var. 
Deutzia Baroniana Diels in Bot. Jahrb. XXIX. 372 (1901). 
Northern Shensi: Tui-kia-shan, G. Giraldi (No. 1656 ex Diels); Shan-geus, 
Lao-y-san, May 19, 1899, G. Giraldi (No. 4522). ; 
Differs from the type chiefly in the heteromorphous and thinner grayish green 
pubescence of the under side of the narrower leaves which are usually broadly 
cuneate at the base; the stellate hairs have only 5-7 rays mostly with a central 
ray, not 7-9 without central ray as in the type. The flowers of No. 4522 agree 
with those of the type. I cannot follow Schneider in referring the Shensi plant to 
D. grandiflora, var. glabrata Maximowicz; the pubescence of the latter is homomor- 
phous, the hairs having 6-9 short rays and are only sparingly distributed over the 
lower surface, not touching each other. : 
Deutzia grandiflora, var. 8 minor Maximowiez in Mém. Acad. Sci. St. Péters- 
bourg, sér. 7, X. No. XVI. 31 (1867). 
