KOSACEAE. — MALUS 295 



Hokkaido: brackish marsh near Mororan, September 25, 1892, C. S. Sargent, 

 This species is closely related to M. Sieboldiij but differs in its stiff spreading 

 habit, the nearly orbicular pure white petals and the dark red fruit covered by a 

 slight bloom. In the living state, as growing at the Arnold Arboretum, it is very 

 distinct, though in the herbarium it might be confused with M. Sieboldii, particu- 

 larly if only fruiting specimens are seen. The distribution of this plant appears 

 to be very local. 



12. Malus transitoria Schneider, III. Handb. Lauhholzk. I. 726 (1906); in Fedde, 

 Rep, Spec. Nov. III. 178 (1906). 



Pyrus transitoria Batalin in Act. Hort. Petrop. XIII. 95 (1893). 



Western Kansu: Tibetan country southwest of Choni, 1911, W. Purdom; 

 from south of the Pehng Mountains, "brought in by Tibetans," W. Purdom. 



Purdom's specimens agree very well with Batalin's description. This species 

 seems to be most closely related to M. fusca Schneider {M. rivularis Roemer) with 

 which it agrees in the glabrous styles and in the ellipsoid shape of its fruit. Plants 

 raised from seed sent by Purdom are growing in the Arnold Arboretum. 



Malus transitoria, var. toringoides Rehder. See p. 286. 



13. Malus kansuensis Schneider. See p. 286. 



14. Malus yunnanensis Schneider. See p. 287. 



15. Malus Tschonoskii Schneider in Fedde, Rep. Spec. Nov. III. 179 (1906). 



Pyrus Tschonoskii Maximowicz in Bull. Acad. Sci. St. Petershourg, XIX. 169 



(1873); in Mel. Biol IX. 165 (1873). — Franchet & Savatier, Enum. PL 



Jap. H. 349 (1879). — Sargent in Garden & Forest, VII. 45, fig. 9 (1891); 



Forest Fl. Jap. 40, t. 14 (1894). — Bean in Bot. Mag. CXXXIV. t. 8179 



(1908); Trees & Shrubs Brit, Isl. II. 298 (1914). 

 Pyrus Tschonoskii, var. Hoggii Franchet & Savatier, Enum. PL Jap. II. 349 



(1879). 

 Eriolobus Tschonoskii Rehder in Sargent, Trees <fc Shrubs^ I. 73, t. 37 (1903). — 



Schneider, IlL Handb. Lauhholzk. I. 727, fig. 403 h-i, 404 f (1906). 

 Cormus Tschonoskii Koidzumi in Tokyo Bot. Mag. XXIIl. 171 (1909); in 



Jour. Coll Sci. Tokyo, XXXIV. art. 2, 74 {Consp. Rosac. Jap.) (1913).— 



Matsumura, Ind. PL Jap. II. 2, 198 (1912). 



Hondo: Temple Hill near Nagatsugawa on the Nagasendo, October 22, 1892, 

 C. S. Sargent (red scaly bark) ; woods near Nikko, September 3, 1892, C S. Sar~ 

 gent (tree 10-12 m. tall, bark white); Tokose, prov. Musashi, May 11, 1909, 

 K. Sakurai; Fuji-san, May 1900, H. Shirasawa; Mt. Hakone near Tonosawa, May 

 1901, K. Yabe; foot of Mt. Ontake, alt. 600 m., October 31, 1914, E. H. Wilson 

 (No. 7753; tree 16 m. tall, 2 m. girth; branches spreading, fruit green). 



fonnosana Kawakami in Tokyo Bot. Mag. XXV 



XXX 



1, 100 {Mat. FL Formosa) (1911). 



Formosa (ex Kawakami). 



This is a very distinct species, differing from all other Malus by the tubular con- 

 stricted disk enclosing the connate base of the five styles. The large globose fruit 

 with its impressed persistent calyx and short stalk resembles that of the common 

 Apple. 



