1036 ^^- Hock: Pflanzengeographie aussereuropäisoher Länder. [gQ 



Miimesota. 



453. Clements, F. E., Rosendahl, C 0. and Batters, F. K. Minnesot;a 

 trees and shrubs. (Minneapolis, üniv. of Minnesota, 1912, XXI u. 314 pp., 

 8 0, ill.) 



454. Fernald, M. L. Galium brevipes in Minnesota. (Rhodora, XIV, 

 1912, p. 175—176.) 



455. Lnnell, J. New Plauts from Minnesota. II. (The American 

 Midland Naturalist, II, 1912, p. 159— 1G2.) N. A. 



Fortsetzung der Bot. Jahrber., XXXIX, 1911, 1. Abt., p. 982, B. 386 ge- 

 nannten Arbeit; vgl. unter „Systematik", B. 1608. 



456. Moyer, Lycurgus R. Some Minnesota Roses. (American Botanist, 

 XVIII, 1912, p. 70-71.) 



R. Woodsii und blanda. 



ß) Alleghany bezirk (Pennsylvania, West- Virginia, Tennessee, 



Kentucky, Ohio, Indiana, Illinois, Arkansas, Missouri, Indianer 



Territorium, Oklahoma), b. 457—486. 



Vgl. auch B. 102 (Sassafras in Kentucky), 157 (Wald und Prairie in Illinois), 



457. Hall, Wm. L. The Appalachian Work. (American Forestrj^ 

 XVIII, p. 192.) 



Über Waldschutz im Gebiet. 



Peimsylvaiiien. 



458. Carter, J. C Interesting plants in Lancaster Co., Pa. 

 (Bartonia, IV, 1912, p. 21-22.) 



459. Eckfeldt, J. W. Aster aniethystinua Nutt. in Buchs Co., Pa. 

 (Bartonia, IV, 1912, p. 21.) 



459a. Eckfeldt, J. W. Geranium sibiricum in Delaware Co. (Pa.). 

 (Bartonia, IV, 1912, p. 20.) 



460. King, W. L. The flora of Northampton County, Penn- 

 sylvania. (Torreya, XII, 1912, p. 97—107, 124-132, 165^173, 183—189, 208 

 bis 215, f. 1.) 



460a. Long, B. Galium labraäoricutn in Pennsylvania. (Rhodora, XIV. 

 1912, p. 199—200.) 



461. Pretz, H. W. Some noteworthy plants of Lehigh County, 

 Pa. (Bartonia, IV, 1912, p. 6-10.) 



462. Kau, E. A. Notes on the flora of Northampton County, 

 Pennsylvania. (Torreya, XII, 1912, p. 287-289.) 



Ohio. 



463. Dachnowski, Alfred. The relation of Ohio bog Vegetation to 

 the chemical nature of peat soils. (Bull. Torr. Bot. Club, XXXIX, 1912, 

 p. 53—62.) 



Beziehungen des Pflanzenwuchses in Sümpfen Ohios zu der chemischen 

 Zusammensetzung der Torfböden. 



463a. Dachnowski, A. The successions of Vegetation in Ohio 

 lakes and peat deposits. (Plant World, XV, 1912, p. 25—34.) 



