760 



METASPERMAE OF THE MINNESOTA VALLEY. 



deae. Therefore the Monocotyledones column contains 

 the- figure "1," the Archichlamydeae column, the figure '"2" 

 and the Metachlamydeae columa, the figare "3," oa the line of 

 " aquatic plants." Thus, in the several entries, the position of 

 each taxonomic group is indicated. 



42. Summary of 



Characters OF Taxonomic 



Groups. 



No. of families 



Cosmopolitan families 



Extratropical families 



Tropical families 



W. hemisphere families 



N. extratropical fatuilies.. 



N.American families 



No. of genera 



Cosmopolitan genera 



Extratropical genera 



Tropical genera 



N. extratropical genera 



W. hemisphere genera 



N. American genera 



Northern genera 



Southern genera 



Eastern genera 



Western genera 



No. of species 



Northern species 



Southern species 



Eastern species 



Western species 



Nortli-east species 



North-west species 



North-east- west species 



North-south-east si)ocies... 



42. Summary of 



Charactf.rs of Taxonomic 



Groups. 



N.-S.-W. species 



N.-S.-E'.-W. species 



South-east species 



South-west species 



South-east- west species 



No extra-continental species 



Europe 



Asia 



Manchuria-Japan 



Africa 



Australasia 



West Indies 



South America 



Northern extracont 



Southern extracont 



Eastern extracont 



Western extracont 



Not-N. extracont 



Not-E. extracont 



Arboreal species 



Shrubby species 



Herbaceous species 



Aquatic species 



Marsh and swamp species 



Drier-soil species 



Dominant family species 



