1032 F. Hock: Pflanzengeographie aussereuropäischer Länder. [7g 



394. Setchell. W. A. The kelps of the United States and Alaska. 

 (62d Congress, 2d Session, Sen. Doc. 190, 1912, p. 130—178.) 



395. Smith, C. P. Studies in the geiius Erythrocoma Greene. I. 

 (Muhlenbergia, VIII, 1912, p. 1—17, 3 pl.) 



396. Trelease, W. An additional tree-yucca and one other 

 species new to the United States. (Rep. Missouri Bot. Gard., XXTI, 

 1912, p. 101—103, 5 pl.) 



397. Vanpel, F. Zehn neue Opuntiae von Griffith aus dem Jahre 

 1910. (Monatsschr. f. Kakteenkunde, XXII, 1912, p. 91 — 93.) 



Übersetzung von Beschreibungen neuer Arten aus verschiedenen Teilen 

 Nordanfierika^, nach Missouri Botanical Garden, 1910. 



398. Weed, C. M. Portraits of American trees, native and 

 naturalised, with a guide to their recognition at anj season of the year 

 and notes on their characteristics, distribution and culture. (House and Garden, 

 IX, p. 269—275.) 



399. Weingart, W. Echinocereus Weinbergii spec. nov. (Monatsschr. f. 

 Kakteenkunde, XXII, 1912, p. 83—84.) N. A., Nordamerika. 



400. Wiegand, K. M. The Genus Amelanchier in eastern North 

 America. (Rhodora, XIV, 1912, p. 117—161, pls. 95—96.) N. A. 



401. Zeh. Neue Arten der Gattung Liagora. (Notizbl. Königl. Bot, 

 Gart. Berlin, V, 1912, p. 268-273.) N. A., Amerika. 



b) Atlantisches Gebiet, ß. 402-514. 



ft) Kanadisch-neueDglischer Bezirk (umtasst auch Neuyork, 



Michigan, Wisconsin, Minnesota), b. 402^450. 



Vgl, auch B. 82 (Pflanzen von Rhode Island), 82 (Pflanzen von Neuyork), 



93 (Bäume Neu-Englands). 



402. Blake, S. P. Sisymbrium officinale in three states. (Rhodora, 

 XIV, 1912, p. 190—192.) 



403. Sinnott, E. W. The pond flora of Cape Cod. (Rhodora, XIV. 

 1912, p. 25—34.) 



Kanada. 



404. Oanada's Forestry Problem. (American Forestry, XVIII, 

 1912, p. 63.) 



404a. Canadian Forestry Convention. (American Forestry, XVIII, 

 1912, p. 66.) 



404b. Sterling, E. A. Meeting of the Canadian Forestry Asso- 

 ciation. (American Forestry, XVIII, 1912, p. 186-187.) 



405. Fyles, F. First record of Amaranthus spinosus L. in Ca na da. 

 (Ottawa Nat., XXVI, 1912, p. 116.) 



406. Greene, E. L. Accessions to Canadian botany. I. (Ottawa 

 Nat., XXV, 1912, p. 145—147.) 



407. GÜSSOW, H. F. Report of the Dominion botanist. (Rep. Exp. 

 Farms (Canada), 1912, p. 191—215, pl. 6—7 u. fig. 1—4.) 



408. Mao.kenzie, K. K. A new Carex from Albert a. (Proc. Biol. Soc. 

 Washington, XXV, p. 51—52.) N. A. 



409. Standley, P. C. Three new plants fromAlberta. (Smithsonian 

 misc. Coli., LVI, 1912, p. 1-3.) N. A. 



B. im Bot. Centrbl., OXIX, p. 638. 



