158 
been detected in any other locality in the neighbourhood, 
possibly on account of its being passed over for G. monogyna; 
its leaves are similar, but its one to two-styled flowers, and 
pubescent calyx and peduncle will always distinguish it 
from that species. The third species, C. oxyacanthoides, 
ThuilL, has hitherto been represented in our flora by a single 
plant, at Marple ; but the specimens now exhibited from three 
new stations, discovered last year near Manchester, extend 
the area of its distribution in this part of England ; these 
stations are Cressbrook Dale and Wardlow Hay Cop, in 
Derbyshire, and Taxal, in Cheshire. The specimens of 
Gratcegus oxyacanthoides, from Derbyshire, clearly belong 
to the typical species described in English Botany, ed. iii., 
and are at once identified by the converging veins of the 
leaf and by the two-styled flower. Of the three new sta- 
tions now reported for this species, the one situate on the 
eastern flank of Wardlow Hay Cop gives the best evidence 
of the species being indigenous with us, although only two 
or three bushes were to be found. The Cressbrook Dale 
station, which is on the western side of Wardlow Hay Cop, 
furnishes one bush in a hedge by the road side, and may 
have been introduced from some distant locality. The 
nativity of this species in the Taxal station is much more 
doubtful, as there is but one old shrub growing on the re- 
mains of a deserted lawn; this plant, further, shows an 
approximation to C. monogyna in the variation of its leaves, 
and to C. oxyacanthoides by its two styles ; in many respects 
it approaches an Austrian species, the C. intermedia, Schur., 
but I am unable to refer it to that species from the absence 
of authentic data. I exhibit a set of British Hawthorns in 
