96 Morten P. PorsiLp. 
196. Potentilla (Argentina) anserina L. coll. 
The opinions, as to the systematical value of the Greenlandie 
forms of this collective species, vary very much. Here I follow the 
classification given by the last monographer of the genus TH. Worr 
(Monographie der Gattung Potentilla 1908). 
|. Folia subtus dense pilis longis adpressis tomentum verum 
obtegentibus argenteo-sericea, nitentia, sepala externe ple- 
rumque 3 — plurifida, raro integra. 
Here a series of varieties, for instance, var. | milan HAYNE 
IT. Копа aut subtus glaberrima, aut tomento vero niveo 
obtecta, non nitentia vel super nervos pilis brevibus sericeis mican- . 
tia (prævalente semper tomento opaco); sepala externa Гете semper 
integerrima, rarissime 2- aut 3-fida. 
A. Folia et sepala subtus tomentosa, relique plante partes aut 
modice pilose, aut glabræ. 
1. Planta robusta, foliis maximis usque 30 cm et ultra 
longis, multijugis; tomentum foliorum intermixtis pilis 
sericeis brevibus micans. | 
var. grandıs LEHM. 
New Foundland, ? Greenland. 
2. Planta mediocris vel parva, foliis 3—6 (—10).em longis, 
3—5 (—7) jugis, foliolis superioribus 1—2 cm longis, tomen- 
tum foliorum omnino opacum, ad summum quandoque 
secus nervos pilis sericeis paucis submicans. 
var. groenlandica SER. 
West Greenland to ca. 67°. 
В. Folia et sepala utrinque glaberrima sicut plerumque 
relique plante partes. 
var. Egedit WORMSKJ. 
(= Argentina Egedit Вуов). 
West Greenland to ca. 71° N. Lat. 
Of the forms accepted by Tu. WOLF we avé, as far as I can see, 
the following: 
1) var. vulgaris Hayne (variable, may be divided into several sub- 
varieties and forms). Not arctic, though occurring in South 
Greenland (if identical with P. anserina var. communis (LEHM) 
LANGE. 
