142 -ON THE BOTANY OF PLYMOUTH. 
sionally met with an example or two in other places, manifestly simply as 
casual introductions or garden outcasts, in which case the petals are 
usually white or pinkish, and not dull yellow, as in the cornfield plant. 
Sagina nodosa, Meyer. So far as my observation is i 
. Ex 
Dartmoor and various spots on our coast, would seem to furnish most 
suitable situations for this species, and it seems strange we have it not, 
especially as it occurs both in North Devon and at the Lizard, in Cornwall, 
and, according to the ‘ Flora Devoniensis,’ in East Devon also. 
. Cerastium semidecandrum, L. The only authority for this plant being 
a species of the district, is Jones, who, in his * Botanical Tour’ (1820), 
of Tavistock as a station for C. semidecandrum. Under these circum- 
stances I think there is occasion for the query, did Jones mistake one 
of the forms of the variable C. tetrandrum for Q. semidecandrum ? 
_ Hypericum hirsutum, L. Only in one locality near Yealmpton, on 
limestone, about seven miles east from Plymouth. This appears to 
egre south-westerly English station. ` (Vide Journ. Bot. Vol. VL 
p. 205. 
Geranium pratense, L. This is no more indigenous at Widey, by 
Manadon Hill, than are the Laurels, Ilex Oaks, and other shrubs that 
grow in the plantation at the side of which it occurs; moreover, there are 
other herbaceous species that have been planted in the locality. This 
Geranium is not a native anywhere about Plymouth. À 
- pusiiium, L. This species is unquestionably rare, but being ome 
very likely to be overlooked from the great resemblance it bears to the 
common G. molle, L., it may be rather more plentiful than it would seem 
to be, the following stations being all I am able to name under it alter 
many years’ search :— 
In the tract of country watered by the Yealm : about two dozen planis 
: by hool- 
quarry on the side of the road leading from Plymstock, past the schoo d 
house, to Hooe, June, 1860 ; about ten or twelve plants at the latter 
