115 
41. Saxifraga denudata.—It is hardly necessary to observe 
that this isa very doubtful species. "The reflexed points of the 
calyx-segments are very general in the varieties of S. hypnoides, 
and the lanceolate shape of the segments probably accidental. 
42. Saxifraga elongella.—]t is hardly possible for this to be 
any thing else but a variety of S. hypnoides, if the description 
bea faithful one. 
43. Saxifraga letevirens.—The recurved points of the seg- 
ments of the leaves may possibly distinguish this as a species, 
but at present I think its claims very doubtful. 
44. Saxifraga pedatifida.—The very long narrow segments 
of the calyx, if constantly as long as the capsule, may furnish a 
specific character: in other respects, I should think it might 
prove a state only of the var. leptophylla, the leaves of which 
by culture become doubly 3-parted. 
45. Silene acaulis—Twll-di.—May 30, 1828.— Leaves 
connate at the base, sessile. The * cloven scale” at the base 
of the limb of the petal is aed of two. prominences, 
hollow beneath. 
46. Arenaria verna.—Scotland.—July 20, 182'7.— The fila- 
ments certainly arise from a glandular disk, but at first sight 
only the alternate ones, between the petals, are glandular at 
their exterior base, where a single horizontal pore is observ- 
able. (In Cherleria sedoides there are two, one at each side.) 
In these specimens I do not perceive the leaves (previous to 
being dried,) to be 3-ribbed at the back, though in dried Welsh 
specimens it is evident enough. The seeds (in Welsh speci- 
mens,) are not sessile upon the receptacle, but some of the 
upper ones have stalks nearly three times their own length. 
47. Arenaria rubella.—Mael Greadha.—July 23, 1827.— 
Calyz leaves 3-ribbed with membranous edges, slightly covered 
with viscid hairs. Petalsentire, shorter than thecalyx. Filaments 
from a glandular disk, those alternate with the petals bearing 
the glands at their exterior base, or seated upon them. An- 
thers white, though sometimes inclining to red. Styles three, 
four, or five. Stigmas linear, slightly recurved. Flower-stalk 
and upper part of the s/em viscid, the former of a purplish 
colour. Leaves 3-ribbed, (the ribs parallel, prominent on 
12 
