ORTEOTRICEACE^. 227 



4. O. striatum {Linn.) Hedw. (0. leiocarpum B. ^ S.). 

 On trees — frequent, but very rare on rocks, Fr. Feb. — June. 



Down — On trees, and stones ; Templeton. On trees in Belvoir Park ; 



S.A.S, Loughbrickland, and Hillsborough demesne ; H.W.L. 



Beech trees in Tollymore Park, and Finnebrogue ; C.H.W. 

 Antrim— Glenarm Park, and near Ballycastle ; D.M. On trees at Crum- 



lin waterfoot, Antrim, Dunadry, Cave Hill, Redhall, and 



Sallagh Braes, also found in abundance on basaltic rocks at 



Knocklayd, and on Rathlin ; S.A.S. 

 Deny — Trunks of old ash trees near Dungiven ; D.M. On beech trees 



at Drumcormick above Moneymore near the foot of Slieve- 



gaUion; S.A.S. 



5. O. Xiyellil EooJc. ^- Tayl. 



On trunks of old trees — rare, and usually sterile. 



Down— Trees near Banbridge, also Rademon demesne, Crawfordsburn, 

 and Belvoir Park ; S.A.S. Loughbrickland, Waringstown, 

 and Finnebrogue ; H.W.L. Gillhall, Drumcro, and Tolly- 

 more Park ; C.H.W. 



Antrim— By the Lagan above Shawsbridge, also Crumlin, Kilroot, and 

 Glenarm Park; S.A.S. 



Sect. 11. — Calyptoporus. 



6. O. dlaphanum Schrader. 



On trees, stones, and walls— frequent. Fr. Jany. — April. 



Down — On trees at Drumbo, and Newtownbreda, and on stones at Moira 

 S.A.S. Annalong ; H.W.L. By the Lagan at Drumcro, 

 and on thatched roof, and walls at Warrenpoint ; C.H.W. 



Antrim — Trees at Leslie Hill near Ballymoney {E. Brotcn) ; Templeton, 

 and stones at Drumbridge, and Derriaghy ; Templeton, 1803. 

 Stones by the shore of Lough Neagh, 'and at Whitehouse, 

 and Rathlin Island, also on trees at Colin Glen, Cave Hill, 

 Kilroot, and Blackhead ; S.A.S. 



7. O. cupulatum Hoffman. 



On stones in streams — frequent, but only in the northern half of the 

 district, rarely found on rocks. Fr. Jany.— May. 

 Our plant is mainly the var. nudum of Dickson. 

 Antrim— Rocks at Fairhead ; D.M. Stones in Cnimlin River, and at 

 Trench beyond Andersonstown, Glendivis, Kilroot, Gleno, 

 and Glynn in profusion, also on limestone rocks at Black 

 Mountain, north Woodbiirn, and Rathlin Island, and on basalt 

 cliffs at the Gobbins ; S.A.S. 

 p2 



