I903- Om^^so^.—Molhcsca of Co. Kilkeujiy. 31 1 



Unio marg-aritifcr.— R. Barrow at Ullard (147). Said to be common 

 in this river, but net ear.y to get except when the water is ver}' low. 



Pisidiutn amnicum.— Thomastown (157). 



P. pulchellum,— Kilkenny (147). 



P. font! nalc— Kilkenny, Ullard (147) ; Graiguenamanagh (157). 



P. milium.— Kilkenny (146) ; Graiguenamanagh (157). 



P, obtusalc— Kilkenny, Ullard (147). 



P, pusillum — Freshford(i36); 3 m. S.W. Fresh ford (145) ; Kilkenny, 

 Powerstown, Ullard (147); Graiguenamanagh (157); near Water- 

 ford (168) 



HIERACIUM ORARIUM AND H. RTVAI.E IN 



IRELAND. 



BY R. 1,1,0 YD PRAKGER. 



Among some Hawkweeds kindly examined for me recently 



by Rev. K^ F. Linton, are two interesting forms which are 



hitherto unrecorded from Ireland, and several others which 



are rare in this country. The plants in question were gathered 



by myself, at various times, and awaited naming by an 



authority. 



Hieracium flocculosum, Backh. — Basalt cliffs, Kinbane, Co. 

 Antrim, 19 July, 1891. Previously known in Ireland from one 



other locality in Antrim (Sallagh Braes)> and one in Down (Mourne 



Mountains). 

 H. SoiYimerfeltii, Liudeb.— Hare's Gap, Mourne Mountains, Co. 



Down, August, 1889. Previously recorded from one station in West 



Donegal and one in Derry. 

 H- rivalc, FJ.H., var. subhirtum, F.J.H. — Cliffs of Pigeon Rock 



Mountain at 1,400 feet, and of Kagle Mountain at 1,500 feet, 11 



and 13 July, 1890. Both stations are in the Mourne Mountains. 



H. rivale is mainly a plant of N. and N.W. Scotland. The var. 



stibhirtum, F. J.H., has its headquarters in Perthshire ; Mr. E). F. 



Linton tells me ii is suspected of being a named vScandinavian form 

 H. Orarium, Lindeb., var. fulvum, F.J.H.— Stony shore of Lough 



Conn south of Derreen, W. Mayo, 27 July, 1900. This species, has 



a very scattered distribution in Britain, growing in the north of 



Scotland, Yorkshire, Derbyshire, and Wales. 

 H, strictum, Fr., var. sufacrocatum, Linton.— Rocks on the edge 



of Lough Dan, Co. Wicklow, 29 July, 1893. H. strictiwi was recorded 



from Glenmalur in the same county by Isaac Carroll half a century 



ago iPhytoL v. 76, i8.54)-its only station outside Donegal, Antrim, 



and Derry ; so its rediscovery is welcome. The variety has not been 



recorded from Ireland before. 



