PROPORTIONS OF PHANEROGAMOUS VEGETATION. 343 



Proportionate Numbers of some of the principal Fami- 

 lies TO THE WHOLE PHANEROGAMOUS VEGETATION OF THE 



several Districts of the three Zones. 



A list of the plants collected by Mr. Seenian on the coasts of 

 Beering's Sea having been received subsequent to the first part of 

 the preceding tables having passed through the press, some emenda- 

 tions are requisite. The numbers of Dycotyledoncs, in p. 342., are to 

 be substituted for those in p. 322., and the following changes made in 

 the column headed Kotzebue Sound : viz. Ranunculaceee, 14 ; Cruci- 

 ferce, 19; Caryophyllece, 18; Leguminosa, 14; Rosacea, 27; Portn- 

 lacece, 5 ; Saxifragem, 26 ; Composites, 36 ; Ericece, 9 ; Boraginece, 5 ; 

 Scrophularinece, 12; Verbenaceoe, 1; Diapensiacece, 1. These occasion 

 some slight alterations in the first column of the second zone, and in 

 the total number of plants. 



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