By H. N. Dixon, M.A., F.L.S. 589 



I have to thank Mr. E. Meyrick for information kindly furnished 

 lue with regard to the Sarsen Stones. 



The following are the species observed. (efr.=in fruit). 



Polytriehum juniperinum Willd. Not common. Eather on earth in crevices 

 of the rock than truly saxicolous. 



Ceratodon purpureus Brid. Only a few sterile stems among other mosses, 

 while it is extremely abundant and fertile on the ground all round ; it 

 must therefore be considered to avoid the boulders. 



Dicranoweisia cirrata Lindb. cfr. Abundant in Clatford Bottom, in dense, 

 bright green, small tufts. 



Dicranum scoparium Hedw. Sometimes on earth in crevices, but at times 

 truly saxicolous. 



Grimmia apocarpa, Sedw. cfr. A single tuft only, in Clatford Bottom. 



Grimmia pulvinata Sm. cfr. Abundant everywhere. 



G. decipiens Lindb. cfr. Clatford Bottom and Downs above. Abundant 

 and fruiting richlj'. 



G. trichophylla Grev. cfr. Abundant and frequently fruiting. 



G. leucophsea Grev. Clatford Bottom. Only seen on two or three stones 

 near together. 



Khacomitrium heterostichum var. alopecurum Siihn. A small quantity on 

 one rock, near the Eidgeway, above Clatford Bottom. 



Hedwigia ciliata Ehrh. Frequent. 

 Tortula intermedia Berk. On one stone only. 

 Barbula cylindrica ScJi}:). Once onlj'. 



Barbula sinuosa Braithiv. In two or three localities, sparingly. 

 Cinclidotus Brebissoni Susnot. On a stone by stream, near Lockeridge. 

 C. fontinaloides P. Beauv. cfr. On the same stone as above, submerged. 

 Zygodon viridissimus B. Brown. Lockeridge Dean, on one stone. Type, 

 but with a very slight approach to var. rupestris. 



Orthotrichum rupestre SchleicJi. cfr. Frequent, often in abundance and 

 well developed, and fruiting freely. 



0. diaphanum Schrad. cfr. Near Lockeridge. 



Bryum capillare L. Most abundant everywhere. 



Fontinalis antipyretica L. With Cinclidotus fontinaloides above. 



Anomodon viticulosus S. and T. Near Lockeridge. 



Pterogonium gracile Sw. Not very common and rather poor. 



Camptothecium sericeum Eindb. Not common. 



Eurhynchium crassinervium B. and S. Near Lockeridge. 



