NOTICED IN NORTH WALES. 53 
bed was not to be had in the place. On the next morning after 
our arrival, we set out to take a stroll on the skirts of the Great 
Glyder, and speedily ascended to a considerable elevation up a 
very steep path, so far indeed that we resolved to extend our walk 
to Twlldu, although we did not mean to go so far when we set 
out. We did not attempt the rocky part of the Great Glyder, 
but contented ourselves with Llyn-y-Cwn (Greek xvwv), the 
Lake of the Dog, where Isoetes lacustris grows, also Lobelia 
Dortmanna and Subularia aquatica. These do in a manner pave 
the little lake Llyn-y-Cwn. In the marsh adjoining were found 
Chrysosplenium oppositifolium, and other marsh plants, also on 
the rocks about the tremendous chasm of Twlldu, down which 
the waters of Llyn-y-Cwn rush into Llyn Idwal, through a chasm 
only a few feet wide and 200 yards high. Here we observed 
Silene acaulis, Oxyria reniformis, Plantago maritima, Statice Ar- 
meria, Vaccinmum Vitis-idea ; also Arenaria verna-in the crevices 
of the perpendicular rocks above Llyn Idwal, near the fissure of 
Twlidu and elsewhere, but not very generally distributed; and Rho- 
diola rosea, Cochlearia officinalis, Gnaphalium dioicum, Saxifraga 
hypnoides, and S. stellaris grow there also, but we were too late 
to see them in flower. We found a plant or two of Lloydia se- 
rotina, the rarest of all our British species; we believe it also 
occurs on the Snowdon side of the Llanberis Pass. Carduus 
heterophyllus and Polystichum Lonchitis grow on or about the 
Giyder, but we saw neither of them last September; Mr. Pam- 
pln has however seen both. <Asplenium viride we saw among 
these rocks. We were of course too late for Thalictrum alpinum, 
which grows there also. Bingley mentions Savxifraya oppositi- 
folia and S. nivalis, a still rarer Saxifrage, as being the produc- 
tion of these rocks; we had not the pleasure of finding either 
of these. Hmpetrum nigrum occurs here, and Lycopodium sela- 
ginoides in the boggy parts of these elevated regions. This was 
pretty good botanizing for one morning. We were contented 
with the result and hastened home, which we reached in much 
less time than we spent on our toilsome walk up the very steep 
acclivity. We verified the old adage, Facilis descensus Averni. 
The Cambrian Poppy adorns many spots on the ledges of the 
mountain-torrents, all about the vale of Llanberis; but when it 
is within reach of cattle or sheep, you often find the plant with- 
out flowers and close cropped. It occurs occasionally with flow- 
