260 NOTES RESPECTING SOME PLYMOUTH PLANTS. 
have to be considered as simply a naturalized species, being never found 
away from houses, gardens, or orchards; growing most frequentl 
neighbourhood of Saltash, Cornwall. 
Lathyrus Nissolia, L.—As a species of the neighbourhood I have 
found this simply as a “ casual," except at Cattedown, where it occupies 
a few square feet on an old ballast or rubble heap overgrown with bram- . 
bles and herbaceous plants, but even here it is not to be found some 
seasons. I first noticed it in June, 1860, but a specimen from the locality 
collected by the Rev. W. S. Hore many years before, probably from the 
very same spot, is in the herbarium of the Plymouth Institution, as stated 
by Mr. Keys in his * Flora of Devon and Cornwall,’ with the remark that 
the plant would seem to appear at intervals, which is certainly the case; 
for since 1860 I did not see it at the station until last year, when it made 
its appearance at the old spot, and there it is again this season (June, 
1872). The three summers in which it has appeared have been rather 
wet ones, or at least not remarkable for great heat, whereas some of the 
intermediate ones will be long remembered for heat or drought, which 
the effect of the weather or its habitat, and so are of a local character, or 
are a characteristic of the species generally, I leave for those botanists to 
determine who have the plant commoner in their neighbourhoods than it 18 
own. 
Lathyrus tuberosus, L.—Five small patches of this conspicuous species 
might be seen last year on the first embankment from Plymouth by the 
Eastern road. In some way or other garden plants have been conveyed 
to this and the adjoining embankment, for, in addition to this Lathyras, 
I have found on them Lathyrus latifolius, Petroselinum sativum, Petasites 
„fragrans and Ornithogalum umbellatum. The first of these, Lathyrus 
latifolius, occurs also on the Saltram Embankment on the opposite side 
of the Plym Estuary, called here“ The Laira,” where it has been mistaken 
or Vicia sylvatica, which species we have not at all about Plymouth, 2$ 
the plant at the other recorded local station, Boveysand, is Lathyrus yi- 
vestris, not the Wood Vetch. 
Spiræa Filipendula, L.—I recorded this as if a native from near 
Landulph, Cornwall, in Journ. Bot. vol. IIT. p 350, but further search in the 
ocality has revealed Vinca major and Ruscus aculeatus in a hedge neat 
the spot where it grows, and I have come to the conclusion that the three 
plants were all originally introduced. I have also seen this 5 
another spot near Plymouth, situated in the parish of Bickleigh, Devon, 
where it is undoubtedly a relic of an old garden, together with some bushes 
of Symphoricarpus racemosus, T idt 
: wem lanceolatum, Seb. The profusion of this in many par 
in the neighbourhood of Plymouth 5 one of the most noticeable 
