46 IP 5 t e I s i a 



Asplcnium filix-foemina are generally found 

 along streams. Eqitisctum telmateia is of in- 

 frequent occurrence but attains large size, sterile 

 plants being observed measuring from 1-1.5 

 meters in height. Lysichiton camtschatceuse, 

 (PI. VII.) the only representative of the 

 Aracea? in this region with its enormously long 

 and broad leaves offers a marked contrast to 

 the other types of vegetation and seems much 

 out of place in a northern, coniferous forest. It 

 grows typically in cool, moist, deeply shaded 

 ravines. Lnziila cam pcstris occurs occasion- 

 ally along streams. Streptopiis amplexicaulis is 

 common throughout the belt but is most frequent 

 at the lower le\'els. Listcra cordata, though 

 somewhat rare, is found generally where the 

 forest is very dense and where there is less of 

 underbrush. Razouiuojskya tsiigcnsis, growing 

 as a parasite on the branches and stems of the 

 hemlock is most abundant in the low forest. 

 Raminculiis hougardii, Tiarclla trijoliata and 

 Boykinia data flourish on this forest floor where 

 little or no direct sunlight falls. The latter two 

 species are frequently found growing side by 

 side, usually upon banks of streams. 



