1858.] THIRSK NATURAL HISTORY SOCIETY. 623 



side, higher up, may be met with Epilobium angustifolium, Viola 

 lutea, Hieracium Lawsoni {cerinthoides of Backhouse's mono- 

 graph), Salix phylicifolia, Bartramia pomiformis and B. fontana, 

 Bryum pallesccfis, inclinatum, and crudwn, Hypnum plumosum 

 and H. I'ivulare. A barn-like erection near the junction of 

 Whitstondale beck with the main stream, is half surrounded 

 by a rank growth of Senecio saracenicus, but here the propin- 

 quity of the plant to the building marks upon its origin an in- 

 dubitably alien stamp. The three miles that intervene between 

 the foot of the stream and its fork lead up a romantic glen, 

 well wooded, and edged with cliffs of great variety of composi- 

 tion, down which in several places tumble streamlets which will 

 form fine cascades in a rainy season. Amongst the rocks in the 

 lower part of this glen (350 yards) grow Hieracium gothicum, 

 Melica nutans, Rubus saxatilis, Poa Balfourii, Fissidens osmun- 

 doides, Gymnostomum rupestre, Blindia acuta, Hypnum pulchel- 

 lum ; by the streamside, Mnium 7'oseum and Dicranum rufescenM ; 

 and on trees, Orthotrichum pulchellum and Drummondii ; higher 

 up (400 yards), Habenaria chlorantha, Polypodium Dryopteris, 

 Trollius europ(Eus, Myrrhis odorata, Viola latea, Hieracium 

 casium, murorum, trident atum, Lawsoni, crocatuni, and corym- 

 bosum (H^if/wm, Backh.), Avena flavescens, Lastrea Borreri, 

 and great profusion of Epilobium angustifolium. In waste 

 ground at the fork of the stream, near a few farmhouses that 

 bear the name of Raven's Seat, we noticed Peucedanum Ostru- 

 thium and Rumex obtusifolius. From Haven's Seat we crossed 

 up to the top of the moor in the direction of Nine Standards. 

 The Pteris here attains an elevation of 600 yards, which is as 

 high as I have seen it anywhere in this part of the country. 

 On a gritstone edge, at about the same level, we saAV Allosorus 

 crispus, Lastrea dilatata, Polypodium vulgare, Blechnum boreale, 

 Lycopodium Selago, and Vaccinium Vitis-idtsa. The upper levels 

 of the moorland consist everywhere of damp, barren, peaty 

 tracts, and the vegetation is exceedingly unvaried and monoto- 

 nous. The following are all the phanerogamic species noted 

 between this gritstone edge and the summit of Nine Standards 

 (2153 feet) :— 



Drosera rotundifolia. Galium saxatile. - Vaccinium Myrtillus. 



Cerastium triviale. Erica Tetralix. Jimcus eiFusus. 



KubusChameemorus. Calluna vulgaris. Juncus squarrosus. 



e 



