208 K. MIYABE ON THE 



rLegumiuosBe, willi t5 genera. Cruciferse, with 12 species. 



J Saxifiiigiiceae, 

 I Scropiiularia^ 



riacete, 

 l^Filices, 



r Caryophylhiceaj, 

 } Capiitbliaceae, 

 C Coniferaj, 

 (' Piimuhicese, 

 j Gentianacea;, 

 I LabiatEe, 

 1 Orchidacete, 



There are 21 orders which are represented by a single genus ; and 9, b}' a single species. 



Among the larger genera, the following are conspicuous: Ctf rex (with 8 species); Slellaria 

 (with 7) ; Artemisia (6) ; Epilobium, Senecio, Vaccinium, Mertensia, Veronica and Pedicularis 

 (5 each) ; Arabis, Viola, Primus, Poleiitilla, Saxifraga, Achillea, Pyrola, Polygonum, Poa, Lyco- 

 podium and Equisetum (4 each). 



The relative size of these principal orders and genera indicates distinctly the northern nature of 

 the flora. To bring out more clearly a certain peculiarity of the Kurile vegetation, a comparative 

 table, placed below, has been constructed, giving in the first column the names of orders; in the 

 second, the relative percentage which they bear to the whole Kurile flora; and in the third, to that 

 of the flora of Yezo ; in the fourth, to that of Saghalin ; in the fifth, to that of Amur-land ; and in 

 the last column to that of eastern Siberia. The figures in the third column are based on my unpul)- 

 lished list of the Yezo plants, containing a little over 1,100 species. The fourth column I have based 

 entirely on the Floi'a Sachalinensis of F. Schmidt. The last two columns were taken from Maximo- 

 Avicz's Primitiie Flora; Amurcnsis, p. 430. 



Kurile Islands. Yezo. Saghalin. Amur-land. E. Sil)eria. 



