498 WILSON EXPEDITION TO CHINA 



Schneider, III. Handb. Laubholzk. 1. 133 [1904]; in Fedde, Rep. Spec. Nov. X. 233 

 [1911]). The value of these forms is doubtful, and they need further investigation. 

 With the rich Japanese material before me I cannot separate as a species from the 

 very villose forms representing A. hirsuta Turczaninow the variety sibirica which 

 seems to be connected with the type by intermediate forms of every degree. 1 refer 

 to this variety all the forms hitherto named A. tindoria and A. sibirica or A. incana, 

 var. glauca of eastern Asia. 



Alnus hirsuta is very abundant in Hokkaido and in southern Saghahen, where in 

 open grassy country it forms nearly pure woods. It is a very bushy tree, not ex- 

 ceeding 20 m. in height and usually much less, with a short, very thick and often 

 gnarled trunk clothed with pale gray bark which is smooth or nearly so. Pictures 

 of this tree will be found under Nos. x354, x360, x363, x366, x376, x418, x419, 

 x420 of the collection of my Japanese photographs. E. H. W. 



Alnus hirsuta, var. sibirica Schneider, n. comb. 



Alnus sibirica Fischer ex Turczaninow in Bull. Soc. Nat. Mosc. XI. 101 {Cat. 

 PI. Baical.) (nomen nudum) (1838) apud Komarov in Act. Hort. Petrop. 

 XXII. 57 (Fl. Mansh. II.) (1903). — Calher apud Schneider, III. Handb. 

 Laubholzk. 1. 133 in adnot. (1904); II. 891, fig. 557 f-h (1912). — Nakai in 

 Tokyo Hot. Mag. XXIX. 47 (1915). 



Alnus incana, var. sibirica Spach in Ann. Set. Nat. s6r. 2, XV. 207 (1841). — 

 Ledebour, Fl. Ross. III. pt. 2, 656 (1850). — Turczaninow in Bull. Soc. 

 Nat. Mosc. XXVII. 406 (1854) ; Fl. Baical.-Dahur. II. 133 (1856). — Traut- 

 vetter & Meyer in Middendorff, Sibir. Reise, I. pt. 2, Bot. abt. 2, 86 {Ft. 

 Ochot.) (1856). — Kegel in Nouv. Mem. Soc. Nat. Mosc. XIII. 156 {Monog. 

 Betulac. 98) (1861); in Bull. Soc. Nat. Mosc. XXXVIII. 434 (1865); in 

 De Candolle, Prodr. XVI. pt. 2, 189 (1868). — Dippel, Handb. Laubholzk. 

 II. 164 (1892). — Herder in Act. Hort. Petrop. XII. 77 (PL Radd.) (1892). — 

 Matsumura in Jour. Coll. Sci. Tokyo, XVI. art. 5, 12 (1902); hid. PL 

 Jap. II. pt. 2, 18 (1912). — Winkler in Engler, Pflanzenr. IV.-61, 122 

 (1904). — Nakai in Jour. Coll. Sci. Tokyo, XXXI. 204 {Fl. Kor.) (1911). 



Alnus incana, var. glauca Regel in Nouv. Mem. Soc. Nat. Mosc. XIII. pt. 2, 

 154 {Monog. Betulac. 96) (1861), quoad specim. sibirica; in Bull. Soc. Nat. 

 Mosc. XXXVIII. 433 (1865), quoad specim. e Mandshuria et Japonia; in 

 De Candolle, Prodr. XVI. pt. 2, 189 (1868), quoad specim. e Sibiria, Mand- 

 shuria et Japonia. — Franchet & Savatier, Enum. PI. Jap. I. 458 (1875). — ■ 

 Herder in Act. Hort. Petrop. XII. 77 (pro parte) (1892). — PaUbin in Act. 

 Hort. Petrop. XVIII. 194 (1900), exclud. syn. Michaux. 



Alnus tinctoria Komarov in Act. Hort. Petrop. XXII. 56 {Fl. Mansh. II.) 

 (non Sargent sensu stricto) (1903). — Calher apud Schneider, III. Handb. 

 Laubholzk. I. 134, fig. 68 h-h^, 72 1 (1904); II. 891, fig. 557 i (1912); in 

 Fedde, Rep. Spec. Nov. X. 233 (1911). — Rehder in Bailey, Stand. Cycl. 

 Hort. I. 253 (1914). — Nakai in Tokyo Bot. Mag. XXIX. 47 (1915). 



Alnus incana, var. tinctoria Winkler in Engler, Pflanzenr. IV.-61, 123 (1904). — 

 Matsumura, Ind. PI. Jap. II. pt. 2, 17 (1912). 



Alnus tinctoria, var. typica Calher in Fedde, Rep. Spec. Nov.X. 233 (1911); 

 in Schneider, III. Handb. Laubholzk. II. 891 (1912). 



Alnus tinctoria,yeir. obtusilobaCa\\\eT,\. c. 233 (1911); 1. c. 891, fig. 557 i (1912). 



Almis tinctoria, var. mandschurica Callier, 1. c. 233 (1911); 1. c. 891 (1912). 



Alnus sibirica, var. typica Calher in Schneider, III. Handb. Laubholzk. 891, fig. 

 557 f (1912). 



Alnus sibirica, var. oxyloba Callier, 1. c. 891, fig. 557 g (1912). 



