18 FLORULA ORCADENSIS. 
Some few plants are included in the list, the specific names of which 
can be given only in doubt. Thus, in the herbarium there is a specimen 
of Cardamine which I cannot positively name C. sylvatica, although 
more inclined to call it by that name than by the less precise name of 
C. hirsuta, which is so often used to include both forms or subspecies. 
Silene inflata is another doubtful name or plant. This and S. nutans 
are given in the Flora on authority of Lowe's list, while S. maritima is 
there adopted from Neill’s * Tour,’ and it is also confirmed by a speci- 
men. I can only guess here that S. nutans of Lowe intended the typical 
S. inflata, apart from S. maritima. Geum intermedium is a poor exam- 
ple, but seemingly nearer to the intermediate form than to G. rivale. 
Neill records Myriophyllum verticillatum, which must be deemed far 
the least likely of our native species, and Neill would hardly have mis- 
taken M. spicatum for it. At the date of his Tour, the M. alterniflorum 
had not been distinguished in this country from the other two species ; 
and since it is now known to occur in the Hebrides, in Sutherland, and 
other Highland counties, there seems a presumption in support of that . 
one having been the species seen by Neill Mr. Boswell Syme, how- 
ever, has reported M. spicatum and not M. alterniflorum. The Gna- 
phalium alpinum of Lowe's list may perhaps have intended G. supi- 
num, reported by Mr. Clouston; but some confirmation of this latter 
species in Shetland would be desirable. Lowe recorded the Pinguicula 
alpina, but P. Lusitanica has been suggested ; neither of them unlikely, 
as both occur in the North Highlands. 
Further, in addition to the species enumerated in the preceding list, 
there are still various others which have been reported as plants of 
Orkney, and which are included in the manuscript * Flora Oreadensis,’ 
usually on the sole authority of Lowe’s list in Barry’s History ; some 
few of them from Neill’s * Tour? and other sources. Most of these are 
plants not at all likely to occur in those northerly isles, if we estimate 
that likelihood by what is known of their distribution and northern 
limits elsewhere in Britain; and, under such circumstances, the au- 
thority for them must be deemed botanically insufficient to convince. 
That some of them have been enumerated simply through mistakes 
in nomenclature, is rendered yet more probable by the fact of corre- 
sponding SR being kept up or repeated at a later date, on the 
em cis dum UE mentioned, apparently by Dr. Gillies or 
T RND; -, Thus, Draba incana in flower is there labelled 
