precipitous limestone cliff, almost overhanging the sea, west of the little 
village of Noli, so that its isolated position—and especially the fact 
that it is close to the sea—may account for some of its peculiarities. 
I cannot see any grounds for treating Convolvulus sabatius, Viv., as a 
mere variety of Convolvulus pseudo-siculus, Cav., as Choisy did in De 
Candolle’s ‘ Prodromus,’ as this latter plant has flowers scarcely one- 
_ third of the size of those of Convolvulus sabatius, Viv., and of white 
colour, tinged with pink and yellow at the centre, and the corolla 
superficially 5-lobed, besides other important differences. The cliff of 
Noli harbours several charming plants, foremost among which I may 
mention Campanula floribunda, Viv. Those who drive along the road 
between Finale and Noli in the autumn or early winter should not for- 
get to look out for the beautiful purple-blue flowers of this plant. Now, 
both Campanula floribunda, Viv., and Convolvulus sabatius, Viv., are 
plants peculiar to Noli and its neighbourhood, whose nearest allies are 
now found far away to the south. Have their relations once been grow- 
ing along the Riviera, and have they now fled southward? or are these 
the outposts of a new advance,—small colonies sprung from some far- 
travelled seed come from the old African or Sicilian home ? 
ExpLaNatIoN oF Prate LXI.—Fig. 1, a flower deprived of the 
stamens and corolla, magnified. Fig. 2, the same deprived of the calyx, 
showing the cup-shaped disk surrounding the ovary, magnified. 
a 
