On Sagina proeumbens L. x saginoides 
(L.) Dalla Torre. 
By C. A. M. Lixdma.n. 
In the course of the International Phytogeographi- 
cal Excursion in the British Isles 1911, the party vi- 
sited Ben Lawers in Scotland on Aug. 17th. Although 
it was rather late in the summer, the flora of that 
famous mountain was flowering abundantly; but no- 
thing perhaps so much surprised the botanists as a little 
profusely flowering Sagina which really puzzled all of 
us, though it was evident that it was closely allied to 
Sagina saginoides (L.) Dalla Torre (S. Limicei Presl, S. 
saxatilis Wimm.). This plant was soon afterwards re- 
corded under the name Sagina glabra var. scotica by 
Gr. C. Druce in The New Phytologist 1911, p. 310, but 
as this author a little later found that it could not be- 
long to S. glabra , he described it as a j)roper species, 
Sagina scotica n. sp., in The Botanical Exchange Club 
Report for 1911, Vol. Ill, Part I, p. 14, 15, and Journ. 
of Bot. LI, 1913, p. 89. Another member of the I. P. 
E., C. H. Ostenfeld, regarded the same plant as the 
hybrid S. proeumbens X saginoides and has advocated 
this opinion in The New Phytologist 1912, p. 117. 
I believe that these two different views do not 
really contradict eachother, but that both admit of be- 
ing defended. 
What at once struck us all on gathering this plant, 
was its pure type and uniform appearance, although 
hundreds of specimens were observed. It also surprised 
us very much to find it so freely flowering; for of all 
common plants in the higher region of Ben Lawers 
(from about 1200 feet) there was hardly one which so 
evidently was just going through its flowering-time. 
Botaniska Notiser, 1918. 
