ROSACEAE. — SORBUS 269 



Sorbus Keissleri Rehder, n. comb. 



Micromeles Decaisneana Schneider in Bull. Herb. Boissier, s^r. 2, VI. (1906); 



III. Handb. Laubholzk. 1. 701, fig. 385 g-gS 386 i-k (1906). 

 Micromeles Keissleri Schneider, III. Handb. Laubholzk. I. 701, fig. 388 c, 



389 d (1906). 

 Micromeles Decaisneana, var. Keissleri Schneider in Fedde, Rep. Spec. Nov. 



111. 151 (1906). 

 Pirus Keissleri Leveill^, Fl. Kouy-TcMou, 351 (1915). 



Western Hupeh: Patung Hsien, woods, alt. 1300-2000 m., June 

 1907 (No. 470=*; tree 7-13 m. tall, 0.6-1 m. girth, flowers white); 

 Changlo Hsien, woods, alt. 1800 m., June 1907 (No. 470*^, tree 7-13 m. 

 tall, girth 0.6-1 m., flowers white) ; without precise locality. May 1900 

 (Veitch Exped. No. 593, type of M. Decaisneana), A. Hennj (Nos. 

 5715,5715''). Eastern Szech'uan: without precise locality, prob- 

 ably Wushan Hsien, A. Henry (No. 7166, type of M. Keissleri). 



According to Schneider his Micromeles Decaisneana, var. Keissleri differs from 

 the type in the flowers having only 2 styles, but flowers with 2 styles and with 3 

 styles occur in the same inflorescence. Wilson's No. 470'' differs from the t>T3e in 

 the dense floccosetomentum of the young inflorescence and the young branchlets and 

 of the under surface of the unfolding leaves at least on the midrib; this tomentum, 

 however, soon disappears. 



The specific name " Decaisneana " cannot be used in the genus Sorbus for this 

 species, as there is an older S. Decaisneana Zabel in Beissner, Schelle & Zabel, 

 Handb. Laubholz-Ben. 199 (1903). 



Sorbus caloneura Rehder, n. comb. 



Micromeles caloneura Stapf in Kew Bull. Misc. Inform. 1910, 192; in Bot. 



Mag. CXXXVI. t. 8335 (1910). 

 Pyrus caloneura Bean, Trees & Shrubs Brit. Isl. II. 279 (1914). 



Western Szech'uan: woods southeast of Tachien-lu, alt. 1800- 

 2400 m.. May and September 1908 (No. 997; bush or thin tree, 3-7 m. 

 tall); Mt. Omei, June 1904 (Veitch Exped. No. 4864); without precise 

 locality, alt. 2500 m., May 1904 (Veitch Exped. No. 3496). Eastern 

 Szech'uan: Wushan Hsien, A. Henry (No. 7027). Western 

 Hupeh : Hsing-shan Hsien, woods, alt. 1300-1500 m.. May 1907 (No. 

 348; tree 7 m. tall, girth 0.6 m., flowers white, fruits greenish russet); 

 Patung Hsien, alt. 1300-1800 m., November 1907 (No. 470; tree 7-12 

 m. tall, girth 0.6-1 m., fruits russet green); north and south of Ichang, 

 alt. 1200-1800 m., September 1907 (No. 2992; thin tree, 8-10 m. tall); 

 without precise locality. May 1900 (Veitch Exped. No. 301). 



This seems to be a rather variable species. Wilson's Nos. 470 and 348 have 

 much larger more obovate leaves up to 13 cm. long and to 8 cm. broad. In the 

 specimens from western Szech'uan the leaves when unfolding are covered beneath 



