The Flora of Disko Island and Adjacent Coast of West Greenland. 99 
In the determination of my material | have employed the follow- 
ing arrangement extracted from the monograph of Tn. Wo rr, with 
a few omissions and still fewer additions, the last in |{ |. 
Folia fere semper ternata, crenata vel serrata ad tertiam, 
saltem non ultra dimidiam laminae partem ineisa, dentibus 
latis, saepe remotis, plerumque obtusis; plantae super tomentum 
plerumque parce pilosae, nunquam dense villosae. 
A. Foliola 1—2 (3) em longa, late ovata vel subrhomboidea, basi 
non vel breviter cuneata, cireumserrata, fere aeque lata ac 
longa vel parum longiora; caules tenues erecti vel adscen- 
dentes, 5—20, raro usque ad 35 em alti. 
a. Foliola subtus tomentosa: Var. vulgaris (Cu. & ScHL.) 
Lehm. rare in Greenland. 
b. Foliola laxe et tenuissime canescenti-tomentosa, subviridia. 
Var. pallidior Sw. (= subviridis Leum.) 
A shade form of the preceding? 
B. Foliola 2—5 em longa, irregulariter et grosse sinuato-crenata 
dentibus magnis latis obtusis, quandoque margine subrevo- 
lutis, nervis rubescentibus; caules sat crassi, compressi, 
20—30 em longi, prostrati, floribus apice glomerato-cy- 
mosis. 
Var. prostrata (Rorrs.) Leun. 
A form from shadowed and manured soil of the following ? 
Folia radicalia plerumque ternata intermixtis interdum 
quinatis. Foliola 8—15 [35] em longa, intermedio quandoque peti- 
olulato, ultra dimidiam partem laminae aut fere ad nervum 
medium usque pinnatifida, segmentis sublinearibus aut ob- 
longis acutiusculis, plerumque approximatis; plantae quandoque 
+ dense sericeo-villosae. 
A. Folia longiuscule petiolata, foliola oblonga, dente supremo 
prominulo, utrinque segmentis 3—7 subpectinatim dispo- 
sitis; caules 20—30 em longi, graciles, 2—®5 flori, floribus 10 
—15 mm latis, plantae plerumque laxe pilis longis subvillosae. 
Var. pinnatifida Leum. (= subquinata Lance. Ryps.) 
Very common in Greenland. 
B. Folia parva brevissima petiolata, foliola fere triangulari- 
cuneata vel rhomboideo-obovata, dente supremo vix 
prominente, segmentis angustis utrinque subflabellatim 
dispositis; caules 3—5 em longi, firmi, subseapiformes 1-2 
flori, floribus 18—20 mm latis; plantae dense caespitosae vel 
pulvinares, pilis longioribus + dense villosae. 
7* 
