144 .ON THE BOTANY OF PLYMOUTH. 
Leigham Mills, but in the following year only a single one was there. 
Several dozens on a bank near Shollover, a quarter of a mile from Crab- 
tree, growing amongst wheat sown on the bank as well as in the field 
below, June, 1871. Not found on the granite. 
Centaurea Cyanus, L. Very rare and local. I have never found this 
with a dry, light soil, between Torpoint and St. John's, where it has 
nown to occur for a great many years. The locality also affords 
our most satisfactory station for Galium tricorne, With. 
sent. 
B. tripartita, L. Very rare. Two specimens in the marsh between 
Shollover Lane and the Efford Osier grounds, July 31, 1863. A single 
plant in a muddy spot in the valley at Tamerton Foliott, August 29, 
1864. It appears to have formerly grown nearer Plymouth, for Mr. 
Keys gives the following localities : Vale between Milehouse and Dead- 
common. d 
Artemisia maritima, L. Not known to grow anywhere in the district. 
There is a dried Devon specimen of this, or rather of a plant coming 
nearer to the var. gallica, Willd., than to the typical form, in the posses- 
sion of Mr. N. Easton, of Plymouth, labelled erroneously, so far as the 
name is concerned, “ Artemisia campestris, Banks of the Teign, C. Harper. 
No date is given, but it was probably collected between 1840-50. I 
mention this, as there is little doubt it was this plant that Mr. R. Jordan, 
too, called ** campestris ;” and by asserting it, under this name, to grow » 
the locality mentioned above (Phytol. p. 828, 1843), got 4. campestris, D. 
introduced into the Devon list. 
_ Campanula rotundifolia, L. The great rarity of this has been ple 
viously noticed (Journ. Bot. Vol. V. p. 310). Although so scarce he 
it occurs considerably to the south-west of us, for Messrs. Baker, Bennett 
and I met with it last year in the Lizard districts, whence it was long a8 
recorded by Johns (‘A Week at the Lizard,’ p. 308). A 
_ Solanum nigrum, L. ^ ry rare, and scarcely more than a casual. 
single plant at Cattedown by the Plym estuary, July 23, 1864, intro- 
duced most probably with ballast; Bovisand Bay, Fl. Devoniensis (1829), 
p. 41; also Banks, Plymouth and Devonport Fl. (1830). The later 
adds, “ at the back of Mount Tamar House,” and, across the Tamar, 
the foot of a wall at the top of the principal street in Millbrook.” Abou 
This species occurs in the south-west of Cornwall, for I saw ye 
