100 
Morten P. Porsitp. 
Var. uniflora (Lepes.) Tu. W. (= arctica (Cu. & Scur.) Lee. 
P. subg. var. Pedersenii Rye.) 
A common dwarf form of the preceding. 
Var. vulgaris Cuam. & Scuv. (an vulgaris LeHM. 
LANGE: Conspectus p. 8). 
In Greenland much rarer than var. pimnatifida. Ordi- 
narily the plants are slender, rather like specimens 
from the Alps, — but we have also from luxuriant loca- 
lities, for instance, Engelskmandens Havn on South 
Disko, seen vigorous, stout forms. If identical with the 
var. a of Lancer it should be widely distributed in West 
Greenland. We have only a few specimens from South 
Disko and Diskofjord. 
Var. pallidior Sw. (= y subviridis Leum., Lance |. c. 
p- 9) is probably a shade form of the preceding, occurring 
in copses or among tall grasses. 
Var. prostrata Rorts. As to this doubtful and rarely 
collected form, OstenreLp (Medd. om Gril. 43, p. 27) has 
made the suggestion that it might be a luxuriant form 
of var. pinnatifida from manured soil; to this opinion we 
can subscribe; we may, however, point out that we did 
not observe specimens containing all of the distinguish- 
ing characters: coarse, prostrate and flattened stems, 
large leaves with scanty felt, purplish ribs and revolute 
margins and glomerate flowers. Specimens of vy. pinnati- 
fida from soil manured to excess are often prostrate with 
flattened stems and large leaves. When at the same time 
the plants grow in the shade, the leaves are less toment- 
ous, but then the flowers are, as a rule, undoubtedly 
longstalked. The type specimens of RorrBoLt were sent 
to him from SverpRup, missionary at Disko Bay 1764— 
88, and one specimen is said to exist in the herbarium of 
Pout EGEDE, missionary at Disko Bay 1736—40. The 
last mentioned collection belongs to the Botanical Garden 
at Copenhagen and probably this and other types of 
Rorrsoie’s plants may still exist. The specimens col- 
lected by Hotpo.t, at Umanaq and mentioned by OsTEN- 
FELD |. c. were collected between 1825—28! 
Besides RorrBo.Li’s specimens (collected near Ja- 
kobshavn or Christianshaab?) the var. prostrata has been 
recorded from Uperniviarssuk 73°28’ (RypeER). Ryp- 
BERG (I. c. pag. 180) considered this plant as belonging 
