Geographical Distribution of Plants in Yorkshire. 213 



peculiar, having the same plants as the Lowlands of other parts 

 of England. We no sooner cross the river Ouse, at Selby, 

 than we approach an extensive magnesian limestone formation, 

 extending across the county, from Doncaster, Ferrybridge, 

 Kippax, Thorparch, Knaresborough by Rippon, to the county 

 of Durham : this district is rich in botany. At Kippax may 

 be found, in about a square mile, Orchis Morio, mascula, ustic- 

 lata, militaris, pyramidalis, metadata, conopsea; Habenaria 

 viridis ; Ophrys apifera, muscifera ; Neottia spiralis ; Listera 

 ovata; Allium arenarium, oleraceum; Anthyllis vulneraria; As- 

 tragalus glycyphyllos, hypoglottis ; Carlina vulgaris ; Cerastium 

 arvense; Chironia Centaur eum\ Chlora perfoliata; Cistus Heli- 

 anlhemum; Colchicum autumnale; Daphne laureola; Erigeron 

 acre; Galeopsis versicolor; Gentiana amarella; Hedysarum 

 onobiychis; Ornithogalum umbellatum; Potent ilia verna; Rham- 

 nus catharticus; Sanguisorba officinalis; Sedum telephium; Pirn- 

 pi nella magna : Antirrhinum minus; Circccalutetiana; Campa- 

 nula glomerata, latifolia ; Caucalis daucoides : Parnassia pa- 

 lustris, &c. &c. Throughout the whole of this district, most 

 of the above plants are to be found more or less abundant. 

 At Thorparch a few rare ones may be added : such as, Ane- 

 mone pulsatilla ; Silene noctijlora ; Galium tricorne ; Asperula 

 cynanchica:- Narcissus biforus; Pyrus aria; Epipact is Nidus 

 avis ; Aetata spicata ; Melica nutans ; Cichorium Intybus ; Car- 

 duus eriophorus ; Atropa Belladonna ; Ophrys aranifera ? and 

 apifera; Ornithogalum luteum, &c. &c. About Knaresborough, 

 Chara fexilis, hispida; Dipsacus pilosus; Geranmm sangui- 

 ncum ; Lepidium lalifolium ; Silene nutans ; Helleborus viri- 

 dis, &c. Passing over this limestone, which may extend about 

 10 miles in breadth, from Selby, we approach Leeds; the im- 

 mediate vicinity of which is all clay. A few plants, not very 

 common, may be found towards Knostrop, near the river Aire, 

 such as, Sisymbrium sylvestre ; Cardanime amaru ; Stellaria ne- 

 morum and Hottonia palustris. Passing Leeds, to the north, 

 the sandstone formation begins. (It contains, in the neigh- 

 bourhood of Bramley, Woodhouse, Chapelton, &c. many or- 

 ganic remains of vegetables: we have noble specimens of the 

 Phijtolithus verrucosus, parmatus, stellatus,striaticulmis, sulcicul- 

 mis, cancrllatus, imbricatus, and tesscllatus. )Tlie sandstone forma- 

 tion occupies an extensive district, by Otley, as far as Green- 

 liow I [ill, where it meets the compact limestone : it then passes 

 south, forming a range of alpine moors, by Ilkley, Keighley, 

 and Halifax, to meet the range of the like formation dividing 

 Yorkshire from Lancashire. Many of these heaths are of con- 

 siderable elevation, as, Pardon Fell, 1663 feet; Draughton 

 Moor, 1074 feet; Foxstone's Moor, 1 5 1 3 feet ; Otlev C.-hevin, 



' 921 feet; 



