294 WILSON EXPEDITION TO CHINA 



Rehder. Its application to M. Sieholdii Rehder was a mistake which probably 

 originated with Siebold when he first received the plant from Japan. 



Malus Sieboldii, var. arborescens Rehder, n. var. 



? Pyrus baccata Thunberg, Fl. Jap. 207 (1784). — Siebold in Verh. Bataav. 



Gemot. XII. 1, 66 {Syn. PI. Oec. Jap.) (1830). 

 Crataegus alnifolia Regel, in Act. Hort. Petrop. I. 125 {Rev. Crat.) (1871). 

 Pyrus Toringo, y typica Franchet & Savatier, Enum. PI. Jap. II. 350 (1879). 

 Mains Toringo, f. typica Matsumura, Ind. PI. Jap. II. 2, 205 (1912). — Koid- 



zumi in Jour. Coll. Sci. Tokyo, XXXIV. art. 2, 81 (Consp. Rosac. Jap.) 



(1913). 



Hokkaido : Nopporo, open country, alt. 300 m., August 10, 1914, E. H. Wilson 

 (No. 7411; bush 2-3 m. tall); Hakodate, June 6, 1855, C. Wright (Gray Herb.); 

 " Junsainuma," August 21, 1903, U. Faurie (No. 5380). Hondo: slopes of Fuji- 

 san, common, alt. 500-900 m.. May 8, 1914, E. H. Wilson (No. 6658; bush 1.5- 

 3 m. tall, flowers white, pinkish in bud) ; Lake Chuzenji, woods, alt. 1200-1600 m., 

 June 3, 1914, E. H. Wilson (No. 6799; tree 6-8 m. tall, 0.3-0.5 m. girth, branches 

 spreading, flowers white) ; same locality, alt. 1200-1500 m., June 1, 1914 (No. 6774; 

 tree 5-10 m. tall, 0.3-7.5 m. girth, branches erect-spreading, flowers white, tinged 

 rose); same locality, alt. 1500 m., June 3, 1914, E. H. Wilson (No. 6800; bush or 

 small tree 3-6 m. tall, branches spreading, flowers rosy in bud) ; near Yumoto, 

 thickets and woods, common, alt. 1500-2100 m., October 18, 1914, E. H. Wilson 

 (No. 7655; tree 7-10 m. tall, 0.5-1 m. girth, head very bushy, fruit red); Karui- 

 zawa, tliickets, alt. 900-1300 m., August 31, 1914, E. H. Wilson (No. 7428; bush 

 or small tree 2-8 m. tall); Miyanoshito, Hakone Mts., August 25, 1892, C. S. 

 Sargent; woods near Nikko, September 6, 1892, C. S. Sargent; Mt. Mitsumine, 

 October 1898, H. Shirasawa; Mt. Yerdono, prov. Uzen, July 15, 1909, K. Sakurai; 

 Mt. Asama, July 14, 1904, U. Faurie (No. 6044). Korea: Quelpaert, Hallaisan, 

 June 1907, U. Faurie (No. 1555); same locality, alt. 900 m., October 1909, Taquet 

 (No. 2828); Quelpaert, alt. 800-1000 m., May and August 1910, Taquet (Nos. 

 4219, 4220). 



This variety is widely distributed in Japan and differs from the type in its more 

 arborescent habit, less pubescent, somewhat larger and usually less deeply divided 

 leaves, often lobed only at the end of vigorous shoots and usually nearly glabrous 

 at maturity; the flowers are often nearly white and the fruits yellow or red on 

 different plants. A picture of this tree will be found under No. x 528 of the collec- 

 tion of Wilson's Japanese photographs. 



Malus Sieboldii, var. calocarpa Rehder, n. var. 



A typo recedit habitu arborescente, foliis minus profunde lobatis crenato- 

 eerrulatis, floribus majoribus, fructu majore, 1-1.2 cm. diam. intense rubro. 



Cultivated at the Arnold Arboretum, where it was raised from seed introduced 

 in 1890 by Dr. William Sturgis Bigelow from Japan. 



This form differs from the preceding variety in its large handsome bright red 

 fruit; the flowers are rather large about 3 cm. across; the leaves of the fruiting 

 branches are generally ovate-oblong, crenate-serrulate and 5-7 cm. long, those of 

 the vigorous shoots are mostly 3-lobed with short and broad lateral lobes. It has 

 some resemblance to M. zumi Rehder, but is easily distinguished by the 3-4 styles 

 of its flowers and by the mostly lobed leaves of the shoots. 



11. Malus Sargentii Rehder in Sargent, Trees & Shrubs, I. 71, t. 37 (1903). — 

 Schneider, III. Handb. Laubholzk. I. 722 (1900). 



Pyrus Sargentii Bean, Trees & Shrubs Brit. Isl. II. 293 (1914). 



