SMITH : YORKSHIRE NATURALISTS AT TANFIELD. 195 



Spurge Laurel. Sedum dasyphyllum also grows on a wall which 

 does not enclose a garden. Indeed, the many aliens which were 

 making themselves at home on the hospitable soil of this favoured 

 spot was a subject of general remark. I add a list of the less 

 common plants : — 



Ranunculus auricomus. Hottonia palustris. 



Erophila vulgaris. Ligustrum vulgare. 



Cochlearia officinalis. Symphytum officinale. 



Viola hirta. Myosotis sylvatica. 



Stellaria nemorum. Echium vulgare. 



Hypericum hirsutum. Lathrcea squamaria. 



Prunus cerasus. Verbascum thapsus. 



Primus pad us. Narcissus pseudo-narcissus. 



Pyrus malus. Orchis mascula. 



Chrysosplenium alternifolium. Carex acuta. 



Pimpinella magna. Asplenium ruta-muraria. 

 Campanula latifolia. 



For the Cryptogamia Mr. M. B. Slater, F.L.S., the President of 

 the Botanical Section, reported that Mr. Llewellyn J. Cocks, of 

 Harrogate, collected the following 25 species during the excursion : 



Ctndidotus fontinaloides Hedw. in the River Ure near Mickley ; 

 Mnium marginatum Dicks. = M. serratum Schrad., Hackfall; 

 M. seligeri Juratz, sterile, at Hackfall ; Seligeria setacea Hedw., 

 Hackfall ; $, doniana Sm., Hackfall ; Glyphomitrittm saxicola 



(W.&M.) Mitt, Hackfall; Swartzia montana (Lamk.) Lindb. 



==■ Distichium capillaceum B.&rS., Hackfall; Dichodontium pelhuidum 

 (Stefs.) L. s Hackfall ; Pottia erecta (With.) Mitt., in limestone quarry 

 near Tanfield station (North-west Yorkshire) ; also Georgia brownii, 

 Fisside?is adiantoides, Dicranum fuscesans, Grimmia apocarfa var. 

 rivularis, Pohlia albicans, Philonotis fontana, Bryum pal/ens, 

 Anomodon vitiadosus, Climacium dendroides, Eurhynchium myosu- 

 roides, Hypnum commutatum, Plagiothecium undulatum, Hyiccomium 

 splendens, If. loreum, Homalia trichomanoides, and Pterygophyllum 

 lucens. All these species with two exceptions are previously known 

 as West Riding Mosses, but the two are new records. Campy lo- 

 stehum saxicola is mentioned by F. Arnold Lees (Flora of West 

 Yorkshire) from Ramsden Clough, but the sole station for it there 

 is in Lancashire. This gathering at Hackfall brings the specie- into 

 the West Riding list ; it is a very minute plant, and may probably 

 have been overlooked, for it is known from several localities in the 

 North Riding. The other species, Mnium seligeri Juratz, was only 

 S°t in a sterile state, but it agrees so well with M. seligeri by its leaf- 

 characters that we may venture to include it as an addition. 

 J t should be again looked for and obtained in a more perfect state 

 *iih fruit. 



