564 THiRSK NATURAL HISTORY SOCIETY. [September, 



petrcBum, Galium boreale, and Trollius also occur. Polygonum 

 Eistorta grows by the streamsidCj and LatTir(m^Sguamaria in 

 some of the more shaded places of the wood. In the way of 

 dysgeogenous species we saw Viola hirta, and upon blocks of 

 limestone carried down by the river^ Neckera crispa, Trichostomum 

 flexicaule, and Tor tula tortuosa. Of the Mosses of higher alti- 

 tudes there are Distichium capillaceum, Zygodon Mougeotii, Bar- 

 tramia (Ederi, and Hypnum pulchellum. Upon the trees we 

 gathered Antitrichia curtipendula, OrthotricJium Bruchii, Zygodon 

 viridissimus, and Neckera pumila, both the two latter in fruit ; 

 and in damp^ shaded spots by the river, Mnium rostratum, un- 

 dulatum, and serratmn, all three fruiting in beautiful condition. 

 In various parts of these woods Hypnum elegans, piliferum, and 

 brevirostre, Tetraphis pellucida, Mnium stellare, and Dicranum 

 fuscescens were also collected. We returned in the evening to 

 Ilkley, and upon a mud-capped wall near the Wharfe, below 

 Addingham, noticed Tortula rigida and revoluta. 



" The day but one after this, my companions having left, I paid 

 a visit to the fells on the north side of the river. Near the 

 bridge above Ilkley (300 feet), Viola odor ata grows by the stream- 

 side, and JEgopodium Podagraria at an elevation of at least 250 

 yards, in a Fir-Avood near INIiddleton Hall. In a gill near Langbar 

 I noticed abundance of Hypnum stramineum and cordifolium. 

 After crossing the road between Skipton and Harrogate, I as- 

 cended to Beamsley Rocks, the crest of heathery hill, 1314 feet 

 in elevation, that lies on the line of watershed between the 

 Wharfe and its tributary the Washburn. Near the summit of 

 these rocks I noticed Andrecea Rothii, Hypnum elegans, and 

 Dicranum fuscescens ; and in boggy ground upon the hill-slope. 

 Sphagnum compactum and Hypnum scorpioides. At the head of 

 the gill down which runs the stream to Beamsley, I saw Sphagnum 

 contortum ; and a little lower than this, at an elevation of 300 

 yards, more or less, Juncus diffusus and Myrrhis odorata. Though 

 it is expurgated from the list of British aborigines by M. Alphonse 

 ^fi J de Candolle, I have fuU faith in Myry^his as a genuine inhabitant 

 ^ 7 I of Yorkshire. In cases of this kind direct observation of a plant 

 I in the places where it grows is a much safer guide to a correct 

 I conclusion than a priori induction and the collation of authori- 

 I ties. By the stream sides and in damp meadows this is one of 

 the commonest dale plants of our county, an oft-recurring ex- 



