168 JOURNAL OF THE ARNOLD ARBORETUM [vol. \ 



Act. Hort. Petrop. vi. 177 (1879). — Rehder in Jour. Arnold Arb. I. 258 



(1920). 



Spiraea hypericifolia var. hupehensis Rehder in Sargent, PL Wilson, i. 438 

 (1913), quoad specimen e Shensi. 



Chili: Si wan tze near Kalgan, Plre Artselaer (ex Maximowicz, 1. c). 

 Shensi: Yenan fu, W. Purdom, no. 346, May, 1910. — See also Rehder, 

 1. c. (1913 and 1920). 



Distribution: also Mongolia and through Siberia to Turkestan, Cau- 

 casus and Russia. 



Spiraea hypericifolia var. thalictroides Maximowicz in Act. Hort. 

 Petrop. vi. 179 (1879). 



Chili: "in Mongolia versus fines Chinenses, " Kirilow (ex Maximowicz, 



1. c). 



Distribution: also Mongolia, Dahuria and Transbaicalia. 



Spiraea mongolica Maximowicz in Bull. Acad. Sci. St. Petersb. xxvu. 



467 (1881); in Mel. Biol. XI. 216 (1881).— Hemsley in Jour. Linn. Soc. 



xxiii. 226 (1887).— Bretschneider, Hist. Eur. Bot. Discov. China, 975 



(1898). 



Spiraea crenifolia y. mongolica Maximowicz in Act. Hort. Petrop. vi. 1S1 

 (1879). 



Kansu: N. Przewalski (ex Maximowicz, 1. c, Hemsley, 1. c, and Bret- 

 schneider, 1. c). 



Spiraea gemmata Zabel, Strauch. Spir. 23 (1893). — Rehder in Sargenl, 

 PL Wilson, i. 441 (1913). 



Shensi: Tai pei shan, W. Purdom, no. 2, 1910. 



Kansu: Min chow, alt. 2800 m., W. Purdom, no. 1017, 1910. 

 Distribution: also Szechuan. 



Spiraea alpina Pallas, Fl. Ross. i. 35, t. 20 (1784). — Kanitz in Szechenyi, 

 Keletazs. Utj£n. Tudom. Ered. n. 808 (PI. Enum. 20) (1891); in Szechenyi, 

 Wiss. Ergeb. Reise Ostas. n. 696 (1898). — Pritzel in Bot. Jahrb. xxix. 

 382 (1900).— Rehder in Sargent, PI. Wilson, i. 440 (1913). 



Shensi: Tai pei shan, W. Purdom, no. 5,. 1910. — See also Pritzel, 1. c., 

 and Rehder, 1. c. 



Kansu: Min chow districts, alt. 3000 m., W. Purdom, no. 1015, 1911. — 

 See also Kanitz, 1. c, and Rehder, 1. c. 



Distribution: also Szechuan; Mongolia, Dahuria, Songaria, Altai Mts. 



Spiraea prostrata Maximowicz in Act. Hort. Petrop. vi. 184 (1879). 



Hemsley in Jour. Linn. Soc. xxiii. 226 (1887). — Bretschneider, Hist. Eur. 

 Bot. Discov. China, 996 (1898).— Pritzel in Bot. Jahrb. xxix. 382 (1900). 



Shensi: along the river Han, P. */. Piasezki (ex Maximowicz, 1. c, 

 Hemsley, 1. c, Bretschneider, 1. c, and Pritzel, 1. c). 



Kansu: "Kansu australis," P. J. Piasezki (ex Maximowicz, 1. c, 

 Hemsley, 1. c, Bretschneider, 1. c, and Pritzel, 1. c). 



Distribution: also Hupeh. 



