162 



ZONATION 



Wiesner, J. 

 1890 Drude, O. 



1893 Magnin, A. 



Flahault, C. 



Coville, F. V. 



1894 MacMillan, C. 



Pieters, A. J. 



1895 Warming, E. 

 Kurtz, F. 



1896 MacMillan, C. 



1897 Clements, F. E. 

 MacMillan, C. 



1898 Pound, R. & 



Clements, F. E. 



Biologie der Pflanzen. 203 



Handbuch der Pflanzengeo- 

 graphie. 69 



Recherches sur la v^g^tation 

 des lacs du Jura. Rev. 

 Gen. Bot. 5:241. 303, 515 



Les zones botanigaes dans le 

 Bas-Languedoc et les pays 

 voisins. Bull. Bot. Soc. Fr. 

 40:36 



Botany of the Death Valley 

 Expedition. 16 



On the Occurrence of Sphag- 

 num Atolls in Central Minn- 

 esota. Minn. Bot. Studies 

 1: 1 



The Plants of Lake St. Clair. 

 Bull. Mich. Fish Com. 



Plantesamfund 



Die Flora des Chilcatgebietes 

 im siidostlichen Alaska. 

 Engler 19:327 



On the Formation of Circular 

 Muskeag in Tamarack 

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Peculiar Zonal Formations of 

 the Great Plains. Am. Nat. 

 31: 968 



Observations on the Distribu- 

 tion of Plants along Shore 

 at Lake of the Woods. 

 Minn. Bot. Studies. 1 : 968 



The Phytogeography of Ne- 

 braska. 220 



Schimper, A. F. W. 



Pflanzengeographie auf physi- 

 ologischer Grundlage. 227 



