32 MoHTKN f. I'nItSll.ll. 



X. Gramineae. 

 I 2S. Hierochloe alpina (Liljebl.) 1{. vI^: S. 



Oli iiHMilily and jiL'aly suil, on rucky Hals and especially in dry heal li, 

 rarrr in tlii<'k»>ts and licrb-nials. 



Stands niannrinu: vcry well. l>ut does not occur in aggregate patches. 



\ ery coininon thmuijhout tin' whulf ai'ea. 



Wido-sprcad antir plant witli noither norlhern nor southern limit. 



Ascends lin- liills to \\\o snow-linc, but only in old vegetation,, not 

 l)elt)ni,nng itself to tlie pioneers of llu' nt'W nioraines. 



Ahnndanlly flowering and fruiting. 



Prohahly offen snowless during winter. The livf huds densely 

 covered hy tlif withered hvif-sheaths. 



A 29. Phleuni alpinum L. 



In vigorous herb-mafs and thickets. 



bisko: Soutli-Luasl .il ( iodliavn ()!l°15' numerous luialitirs (1*. and ulliers); 

 inside the Biæsedalen about 6'J^20' (Nygaard); Diskofjord t69°30' (P.) rare. All 

 th<» localities in nfighbouiiiood of hot springs. 



Mainland: \. Isortoq 67°10' (Ros.); Præstefjæld at Holsteinborg 66°55' 

 [I'. \- E.). ThereaftrT ;if 05° and G4° and common soutli of 04° (Ros.). 



\ deridcd sniithern type, the above mentioned localities being 

 thi' norlh limit iii Westgreenland. 



All the mentioned localities are in the lowland, but in the south- 

 most part of Greenland it is observed to a height of 500 m (Ros.). Flow- 

 «'rs yearly. but only as an exception does il fniit in tht^ most favourable 

 localities. The grains are however not spread, lemaining in the spike 

 under the snow, Imt through experimcnts 1 have ascertainf^i t lu-ir 

 LMnwint,' power (E. l\). 



Ilibt'rnates nbundantly covercd by snow. 



V :U). Alopecurus alpinus Sm. 



ih«' natural habitals of Ihe plant are moss-bogs and moist spots 

 in thf healh; but owing to ils great predileclion fdi' organical nianure 

 and great power of dispcrsal it appears at all the |)resent and former 

 settlements, tent piaces, und.'rncalh fowling clilTs, on fowling islets and 

 near fox's ilens in friable soil. hi Ihcse manured piaces the plant beco- 

 mos murh umn« vigorous tlian in thf l)ogs and foims cvtcnsive patches 

 that characteriz.' the settlements more than any (.IImi' |)lant. \\hen 

 thesupply of manure is slopped, an abatement in its luxurianl growth 

 sets in; hence we can, lo a ccrtain extent, draw a eoiulusion, as to the 

 age of the old settlements, from the rate of its development. 



