JUNGERMANIACE^. 261 



POREXilLA {Dill.) Lindb. 



1. P. platypbylla {Linn.) Lindb. 

 Rocks, and moist banks — common. 



2. P. rivularls Nees. 



On trees — very rare. 

 Down— Trees by the Lagan at Drumcro ; C.H.W. 



PIiEUROZZA Dumortier 



1. P. purpurea [Light.) Dam. (J. cochleariformis Weiss). 



Wet heaths— very rare. 

 Down— Rostrevor Mountain, Rocky Mountain, and Hen Mountain above 



Hilltown; H.W.L. 

 Derry— Abundant, but always barren ; D.M. 



HERBERT A Gray. 



1. K. adunca {Dichs.) Gray. 

 Damp rocks— very rare. 

 Antrim — On the fallen rocks (undercliff) of Fairhead ; Templeton Herb. 

 Belf. Mas. 



AITTKEZiZA Dumort. 



1. A. julacea (Linn.) Dumort. 



Mountain rocks -rare. 

 Down— Slieve Donard ; H.W.L. Bloodybridge River; C.H.W. 

 Derry — Clontygeragh Mountain; D.M. 



TRZCHOCOXiSA Dumortier. 



1. T. tomentella [Ehrh.). 

 Shady banks in woods and glens— rare. 

 Down— By the Spinkwee River at the top of Tollymore Park; S.A.S. 

 Tollymore Park, but rare ; H.W.L. Rostrevor Wood, and 

 Moygannon Glen; C.H.W. and H.W.L. 

 Derry — By the Roe above Limavady ; D.M. 



BliEPHAROSTOMA Dumortier. 

 1. B. trichopbyllum {Linn.) Dumort. 



