Vlll. 
Of these, one (Dryas octopetala) is peculiar to Yorkshire. All 
the others have been found to the northward ; but seven, viz., Poten- 
TILLA PRUTICOSA, SeDUM VILLOSUM, RiBES PETR^UM, SaXIFRAGA 
HIRCULUS, GeNTIANA VERNA, BaRTSIA ALPINA, ToFIELDIA PALUSTRIS, 
are not known to the south of Yorkshire. 
The localities in this district which most particularly merit the 
attention of Botanists are the following 
Upper Teesdalb generally, but especially at the points marked 
No. 1 and 2 on the annexed Map. 
No. 1 is on Cronkley Fell, where the limestone is altered by the 
action of the ‘ Whin Sill,’ so as to resemble coarse lump sugar. On 
this * sugar ’ limestone grow— 
Cistus marifolius i Draba incana 
Hippocrepis comosa j Arenaria verna 
And near the same locality — 
Gentiana verna 
Bartsia alpina 
Epilobium angustifolium 
Dryas octopetala 
Thalictrum alpinum 
Lycopodium alpinum 
Aspidium loncbitis 
&c. &c. 
No. 2 is a remarkable spot near the head of Balderdale, where the 
Black Beck joins the main stream. The old channel of the Black Beck, 
marked by a dotted line on the map, is the locality of Saxipraga 
HIRCULUS. 
Vicinity of Ingleborough and Settle. — Saxifrages abound in 
this limestone district, and a second locality of Dryas octopetala is in 
Arncliffe Dale. The Ladies’ Slipper is also among the rarities of this 
magnificent mountain district. 
Bolton Abbey. — In the shales and gritstones of this part of the 
valley of the Wharfe, occur Limosblla aquatica, and Teucrium 
SCORDIUM. 
THE SOUTH-WESTERN DISTRICT. 
External Configuration. — This is an elevated country, but it 
rarely deserves to be called mountainous, even on the extreme western 
boundary, which from the vicinity of Skipton to beyond Sheffield pre- 
serves a bold irregular ridge of ground, rising in Boulsworth Hill to 
1,697 feet; in Blackstone Edge to 1,500 feet; in Holme moss, near 
