270 
in Lund and identical, no doubt, with S. scotica , has 
normal fertility. 
i/ 
The hybrid 8. Linnœi X procumbens, collected by 
the writer at Furulund in Nordland (Norway) and men¬ 
tioned by Lindman in a paper published in Botaniska 
Notiser 1913, is discussed in detail. Only one tuft of 
the hybrid was found, but this was much branched and 
had a diameter of about half a meter. The tuft was 
uniform in appearance throughout and represented appa¬ 
rently one individual. It resembled S. Linnœi (= 8. sco¬ 
tica ) very much, but differed as regards development 
of pollen and seeds. The pollen being very poor only 
few capsules (about 11 per cent) reached normal size. 
The best developed capsules were Y 4 —Y 3 longer than 
the calyx, and the sepals were more spreading than in 
8. Linnœi. Some 28 per cent less developed capsules 
were about of the same length as the calyx, while the 
majority (61 per cent) were undeveloped and remained 
confined within the tightly enclosing sepals without de¬ 
veloping any seeds. In this calculation 80 capsules have 
been included which by their yellow colour plainly in¬ 
dicated fully developed fruiting stage. The number of 
seeds developed in these capsules amounted to at most 
10 per cent of the number developed in the same num¬ 
ber of capsules of normal S. Linnœi » typica ». 
Specimens from Ben Lawers, sent by Ostenfeld 
to the Botanic Museum in Lund, seem to belong partly 
to this hybrid. Two specimens of this plant, apparently 
belonging to the same individual, have seven flowers 
in fully developed fruiting stage, all devoid of normal, 
fertile capsules. Three specimens on the same sheet 
are typical, fertile S. Linnœi. 
Thus, the material from Ben Lawers does not seem 
to have been quite homogeneous, and this circumstance 
may explain the diverse opinions as to the systematic 
position of the plant. 
