VOL. XVIII. (3) THE MOSSES OF GLOUCESTERSHIRE 271 



Pottia minutula Fiirn. 33, 34. Another common Cottes- 

 wold moss. Rare in other parts of the County. 



Pottia Starkeana CM. 33, 34. Bristol (Thwaites) ; 

 Cheltenham (Beach) ; railway-cutting at Gotherington. This 

 moss is plentiful in the Avon Gorge near Bristol on the North 

 side of the river. 



Pottia lanceolata CM. 33, 34. Common everywhere. 



Tortula pusilla Mitt. 33, 34. On mud at the top of walls ; 

 also bare ground in quarries and elsewhere. Common on the 

 Cotteswolds, rare or absent from other parts of the County. On 

 clay at Silverstone Farm, near Mitcheldean (Ley). 



Tortula lamellata Lindb. 33, 34. In similar situations 

 as the preceding, with which it often grows. Common on the 

 Cotteswolds and not found in other parts. 



Tortula rigida Schrad. 33, 34. "Abundant on stone 

 walls " about Cheltenham (Beach). On wall tops and bare 

 ground, where it often grows with the next two species ; widely 

 distributed on the Cotteswolds. Elsewhere found at Yate, 

 near Bristol (Thwaites), and on walls near Westbury-on- 

 Severn, and Mitcheldean. 



Tortula ambigua Angstr. 33, 34. Wall tops and bare 

 ground ; common, especially on the Cotteswolds. 



Tortula aloides De Not. 33, 34. Wall tops, banks, and 

 quarries ; common. 



" Tortula Vahliana Wils. 33, 34. In a road-cutting in the 

 Keuper Sandstone near Newent ; also sparingly at Deerhurst. 



Tortula marginata Spruce. 33, 34. On the Cotteswolds 

 on Inferior Oolite rock on Stanway Hill, and on sandy rock 

 (Cotteswold Sands) near Upton Cheyney. Common on Keuper 

 Sandsone in the Newent district. Sandstone rocks below 

 Madgetts (Shoolbred) ; Symonds Yat, and Rosemary Topping 

 (Miss Armitage and Binstead) ; English Bicknor (Ley). 



Tortula muralis Hedw. 33, 34. Common. Var. rupestris 

 Schultz. (33, 34) also common, especially on the Cotteswolds. 

 Var. (pstiva Brid. (33, 34). Hill near Mitcheldean (Miss 

 Armitage and Binstead). Nottingham Hill, near Cheltenham. 



Tortula subulata Hedw. 33, 34. Common. Var. sub- 

 inermis Wils. (34). On willow-tree by R. Wye, near Lydbrook 

 (H. N. Dixon). 



M 



