156 JOURNAL OF THE ARNOLD ARBORETUM [vol. v 



stellate hairs and those with scattered stellate hairs; in the latter case 

 the hairs have usually more (6-9) and shorter rays and are more regularly 

 stellate while in specimens with denser pubescence the hairs have fewer 

 (4-7) rays often elongated and with a central ray developed, particularly 

 those on the veins which gives to the pubescence a pilose character. 



Deutzia prunifolia Rehder in Sargent, PL Wilson, i. 22 (1913). — 



Loesener in Bot. Centralbl. Beih. XXXVII. abt. II. 130 (1919). 



Deutzia parviflora Cowdrv in Jour. N. China Branch II. As. Soc. liii. 164 

 (PL Peitaiho) (1922).— Non Bunge. 



Chili: Lotus hills, Pei tai ho, common, N. H. Coivdry, no. 157, May 28, 

 1919. — See also Cowdry, 1. c. 



Shantung: Tai shan, J. Hers, no. 1925, June 18, 1922. — See also Loes- 

 ener, 1. c. 



Northern Kiangsu: Liu lin shan, near Hai chow, J. Hers, nos. GOG, 

 614, 649, May 5, 1921. 



Distribution: also Korea. 



Like the preceding this species varies greatly in the size of the flowers 

 in the same locality as in Hers' specimens from the hills near Hai chow 

 of which nos. 614 and 649 have the petals 10-12 mm. long, while in no. 

 606 they are 18 mm. long. 



Deutzia hamata Koehne in Bot. Jahrb. xxxiv. beibl. lxxv. 37 (1904).- 



Rehder in Sargent, PL Wilson, i, 22 (1913). — Loesener in Bot. Cehtralbl. 

 Beih. xxxvn. abt. n. 130, t. 5, fig. f-j (1919). 



N3: Lau shan (ex Koehne. 1. c. and Loesener. 1. c). — See also 



NTU 



Rehder, 1. c. 



The chief distinguishing character of this species, the peculiar rim-like 

 excrescence of the disk on the inside of the stamens is very pronounced 

 in Koehne's original drawing of which the author kindly sent me a copy in 



1913, being strongly incurved and covering the larger part of the top of 

 the ovary, while in the figure cited above this rim is much shorter and 

 upright, and similar, only somewhat higher, to the corresponding structure 

 found in D. gr and i flora and Z). prunifolia. 



Deutzia parviflora Bunge in Mem. Div. Sav. Acad. Sci. St. Petersb. 

 n. 105 (Enum. PL Chin. Bor. 51) (1833).— Turczaninov in Bull. Soc. 

 Nat. Moscou, x. no. vn. 152 (1837).— Walpers, Rep. n. 152 (1843).— 

 Maximo wicz in Mem. Div. Sav. Acad. Sci. St. Petersb. ix. 471 (Ind. Fl. 

 Pekin.) (1859); in Mem. Acad. Sci. St. Petersb. ser. 7, x. no. xvi. 33, t 

 3, fig. 18-23 (1867).— Hance in Jour. Bot. xm. 132 (1875).— Franchet 



in Nouv. Arch. Mu 



124) (1883). 



Hemsley in Jour. Linn. Soc. xxm. 27(i (1887). — Bretschneider, Hist. 

 Eur. Bot. Discov. China, 53, 333, 1054 (1898).— Rehder in Sargent, PL 

 Wilson, i. 23 (1913).— Limpricht, Bot. Reis. Hochgeb. Chin. Ost-Tib. 402 



(1922). 



Deutzia parviflora a. Bungei Franchet in Jour, de Bot. x. 283 (1896). 

 Deutzia parviflora p. mongolica Franchet, 1. c. 



