i8o ANNALS OF SCOTTISH NATURAL HISTORY 



PELLIA EPIPHYLLA (Z.). Very common. P. Neesiana (Gottsche). 

 Wet grassy ground near roadside, Strathcarron. P. calycina 

 (Tayl.). Rather common among wet rocks, Strome Ferry ; 

 Udlan ravine, on wet limestone rock. 



ANEURA PALMATA (Hedw.}. Rare. On moist peaty bank, and on 

 decayed log in a ravine, Strathcarron ; moist peat bank on 

 road to Attadale. A. ambrosioides (Nees). Common on wet 

 rocks, especially in ravines ; seen also in fruit. A. latifrons 

 Lindb. Common on Strathcarron Moss. A. pinguis (L.). 

 Common. 



METZGERIA HAMATA Lindb. Frequent among mosses on damp 

 banks, Strome Ferry, and in a ravine at Strathcarron, but rare 

 elsewhere. M, furcata (L.). Uncommon. M. conjugata 

 Lindb. Frequent in ravines. 



CONOCEPHALUS coNicus (Z.). Common on moist banks among 



rocks. 

 REBOULIA HEMISPHERIC^. (Z.). Rare. Among rather dry rocks at 



Attadale. 



PREISSIA COMMUTATA (Lindenb^. Frequent on moist rocks, Strome 

 Ferry, uncommon elsewhere. 



SCOTTISH PERISPORIACE^E. 

 By JAMES W. H. TRAIL, A.M., M.D., F.R.S. 



To the " Transactions of the Natural History Society of 

 Glasgow" (N. sec. vol. iii., pp. 9-21, 1888), I contributed a 

 Revision of the fungi of this group as far as known to me 

 from the several districts of Scotland. In October 1900 'A 

 Monograph of the Erysiphaceae,' by Ernest S. Salmon, F.L.S., 

 appeared among the " Memoirs of the Torrey Botanical 

 Club," and has been continued and extended in ' Supple- 

 mentary Notes on the Erysiphaceas,' published in the 

 "Bulletin of the Torrey Botanical Club" in 1902. Its 

 author has subjected the group to exhaustive investigation, 

 with the result that he holds that a good many of the 

 so-called species differ structurally in no such way from 

 others as to justify their being kept apart. Thus the 

 number of " species " is considerably reduced, and important 

 alterations follow in the nomenclature. But the result of 



