No. 480] 



ALPINE FLORA OF COLORADO 



863 



Muscaria adscendens (L.), accordiiitj: to XeOson, Is ditlVrt-iit 

 from our plant; in this case the latter must l»e removed from the 

 circumpolar list, and will bear the name Mim-aria orcf/oucnsi.s 

 (Ponista oregonensis Raf., 1836). 



It will be seen that of the Old World species, 26 go above 12,500 

 feet, and 13 do not go below 11,000. Seven, however, go below 

 8000. Admitting that the figures are only rough and approximate, 

 it still comes out quite clearly that the circumpolar flora, while of 

 course boreal, is not especially arctic-alpine. The most character- 

 istic arctic plant is no doubt the Papaver, which seems curiously 

 out of place in our flora. 



( )nt of the 4.S the following oceur in the British Islands, which are 

 neither arctic nor greatlv elevate.l:^ 



(1) Speci(>s which extend to Hritish America or Alaska 



{a) Species not rej)<)rtt>d below 11,000 feet (7 species): — 



