Oed. 15. LINAGES. 



1. LINUM, Linn. 



1. Linum perenne, Linn. 



Hab. On the Columbia River and its southern tributaries; the 

 abundant and only flax of that region. 



Ord. 16. GERANIACEJE. 



1. GERANIUM, Linn. 



1. Geranium erianthum, DO. 



Hab. — Upper Columbia, Washington Territory ; common in moist 

 places.— This is very near G. maculatum of the Atlantic States, but 

 the pubescence is more copious and somewhat glandular; also the 

 base of the petals and stamens much more hairy. G. eriostemon, Fisch. 

 (of which we have authentic specimens), which Hooker & Arnott (in 

 Bot. Beechey) were inclined to unite with G. erianthum, is still 

 nearer G. maculatum, the chief difference being the less divided 

 leaves. 



