122 



MOKTEN r. l'iiUSILU. 



re\oliilc margins. Tlic lowesl and llic lopmosl loaves, onliiiai'ily 

 soinewhat smaller thari tho rost, vvere iml lakon into ronsideration. 

 Oii slioots witli a suflicient niitubor of leaves, 10 wcre measured, othor- 

 wise a sniallci' miinhcr. In all *»2.") leaves of 135 specimens \vore inve- 

 st igaled. 



In I lic rollowinir lists I — V. marks 



1 



b 



l/b 

 of the leaves. 



I lir niimber of leaves measured, 



I Ilt" length in millimetres, 



tlie breadtb in millimetres, 



llu' ratio between lenght and breadth, i. o,, the shape 



The lists are arranged after the ratios, beginning with the broadest 



and ending vvith the narrowest leaves. 



I. Ledum decumbens. 



West-Greenland, 63°--70° Lat. N 



Kangordluarssuk 72°38', 



Qeqortalik 66°44', 



Nåkajanga 66°50', 



Qeqertarssuaq . . 72''53', 



Godhavn 69°15', 



llolstcinsborg . . 66°56', 



Nnnatarssuaq . . 64°30', 



Ilolsteinsborg . . 66°56', 



Påkitsoq 69^27', 



Diskoljord 69°27', 



Kangordluarssuk 67°58', 



Diskofjord 69°29', 



Uvkusigssat . . . 72°18', 



Isortoq 67°10', 



Lakscfjord 72''31', 



Skansen 69°25', 



IkertAq 66°45', 



Jakobshavn 69°13', 



Holsteinsborg . . 66°56', 



Akunåq 68°48', 



Godthaab 64°11', 



Torssukåtak . . . 69''55', 



Umånatsiaq . . . 70""35', 



N 



Ryder 7 



Brummerstedt .... 6 



J. A. D. Jensen ... 6 



Ryder o 



R. Brown 5 



fjundagor G 



J. Vahl 7 



Deichmann (j 



J. Vahl 6 



M. P. Porsild 10 



E. Porsild 10 



M. P. Porsild 10 



K. .1. V. Steenstrup (> 



J. Vahl 7 



Th. & M. V. I'orsil.j 10 



M. V. I'orsild 10 



J. Vahl 7 



Engell G 



J. Vahl 5 



M. P. Porsild 10 



J. Vahl 7 



Sylow 7 



J. Vahl 7 



