264 ON THE DISPERSION OF MONTANE PLANTS 



Teesdale on the basalt, but not seen lately. In many localities in the 

 Slate tracts on the damper precipices of the Superagrarian and Inferarctic 

 zones. 



30. S. villosnm. Scattered widely over the Porphyritic and Carbonife- 

 rous hills. Unknown in the Oolite. In the Slate reported from two 

 stations, but never seen by myself. 



31. Saxifraga stdlaris. Scattered over the Porphyritic peaks and down 

 their sides. Universally distributed amongst the Slate hills from the 

 Midarctic peaks down to the Lake shores. In the Carboniferous tract 

 known in Tynedale, AVeardale, and Teesdale, but not seen in Swaledale or 

 Yoredale. Unknown in the Oolitic tract. 



33. -S*. nivalis. Unknown in tlie Porphyry, Oolitic, and Carboniferous 

 tracts. In the Slate district in three or four stations on damp Inferarctic 

 precipices. 



33. S. Hirculus. Not known anywhere in the Porphyritic, Oolitic, 

 and Slate tracts. In the Carboniferous district in about half-a-dozeri 

 difterent stations in Teesdale and Weardale. 



34. S. aizoides. Nearly or quite as frequent in the Slate district as *S'. 

 stellaris, descending as low, but not ascending quite so high. In the 

 Carboniferous tract, abundant in Teesdale, but not known elsewhere. 

 Absent from the Porphyry and Oolite. 



35. *S'. oppositifolia. Absent from the Porphyritic, Oolitic, and Car- 

 boniferous districts. Damp precipices of the Inferarctic zone in the Slate 

 tract on Glaramara, Helvellyn, and Scawfell. 



36. S. hyjmoides. Unknown among the Oolitic hills. Widely spread 

 through the three other groups of hills, ascending in each from the Mid- 

 agrarian to the Inferarctic zone. 



37. Parnassia pnlnstris. Frequent in swampy places in all the four 

 districts through the Agrarian region. 



38. Cornus snecica. In one long- known station in the Porphyry, and 

 three places in the Oolite in the Midagrarian zone. Unknown in the 

 Slate and Carboniferous hills. 



39. Meum athamanticum. Unknown amongst the Porphyry and Oolite. 

 In the Carljoniferous tract not seen lately, but one station recorded on old 

 authority. Two or three stations in the Slate tract in the Midagrarian 

 zone. 



40. Galium boreale. Unknown amongst the Porphyry. One station 

 in the Oolite recorded on old authority ; probably a mistake. In the Car- 

 boniferous tract common in Teesdale, along twenty miles of the river, and 

 occurring also in Tynedale and Swaledale. In the Slate district on the 

 shore of most of the lakes, and ascending sparingly to the mountain pre- 

 cipices, but not known anywhere above the Agrarian region. 



41. Crepis paliidosa. Frequent in damp woods and meadows in all the 

 four tracts throughout the Agrarian region. 



42. Hieracium alpbium (Jiolosericeuin, Backh.). Unknown in the 

 Carboniferous, Oolitic, and Porphyritic districts. In the Slate on pre- 

 cipices of the Inferarctic zone on Glaramara, Scawfell, and Langdale 

 Pikes. 



43. //. pnlmonarinm {chryscnitlmni, Backh.). Unknown in the Car- 

 boniferous, Oolitic, and Porphyritic districts. In the Slate on high pre- 

 cipices of Helvellyn, Glaramara, and Scawfell. 



44. H. pallidum, including lasiophyllum. Moderately frequent amongst 



