256 
more linear, and sometimes all leaves except the 2—3 lowest are 
narrow linear. The lobes of the calyx are 4—9 mm. long (1/2— 
1/5, exceptionally '/41—1/s of the length of the corolla). The corolla 
13—20 mm. long, and when dried 15—20 mm. wide at the top. 
Flowers in July—August—September, sets ripe fruit. A few spe- 
cimens are approaching the main species very much. 
BP. uniflora Lge. 1. c. GC. groenlandica Berlin 1. c. 
Commonly distributed in all formations; 5—10ctm. high stem 
ascending from a perpendicular master-root, less often with than 
without the above mentioned lateral shoots. The stems have 1 
flower, or 1 fully developped and 1—2 checked flowers. Basal 
leaves as in the preceding plant. The stem leaves most often 
somewhat broader, narrow lanceolate-oval or lanceolate-lingulate, the 
upper ones always narrowest, often linear. The calyx quinque- 
(6—9-) dentate, the denticles narrow, 1/3 (exceptionally !/4—1/5) of 
the length of the corolla. The corolla often large and open and 
more broad than long when dried. The flowers erect. Flowers 
July— October, sets abundant ripe fruit. 
I have referred C. groenlandica, described by Berlin, to this 
form because I do not consider it differring as to species from it. 
Taken each by itself the original specimens of Berlin in the Riks- 
museum in Stockholm are very characteristic, but examined together 
with a greater number of specimens, collected by me for this pur- 
pose, all transitions will be found to appear, and not all original 
specimens are exactly congruent with the description. Those of 
them which I have seen are not dentate (this character has oc- 
casioned Lange’s referring a specimen collected by Mr. Knutsen 
at Kingorsuak (Kangarsuk) to C. groenlandica) neither are the sepals 
always so short as stated; in one specimen they are even almost 
as long as 1/3 of the length of the corolla, and this is in another of 
the specimens not more broad than long. It will on the whole be 
impossible to base a separation of species on the above named 
characters. This will appear from the following list of measurings. 
In the list all the numbers are given in millimeter, and the 
form of the leaves is given by the greatest measured breadth 
divided by the greatest length of the same leaf. I have endea- 
voured to measure the broadest leaves among the lower stem leaves. 
C:C. indicates the length of the lobes of the calyx in proportion 
to those of the corolla, both of them measured from the deepest 
