Sketches of Irish Natural History. 555 



All three groups of European-Irish species must be assumed to have 

 immigrated from the adjacent Continent after the Glacial period had 

 passed away, and when plants and animals were advancing north- 

 wards, under an ameliorated climate. This disposes of the question as 

 to whether some of them may not have originated in Ireland. The 

 presence of Dabeocia in the Azores is harder to explain, but being, as 

 Mr. Watson considers it, a distinct variety, it is likely to have reached 

 these Islands at a time when the species was young, and thus we have 

 still remaining in the Azores a form more closely allied to the original 

 race of the species. 



The ALPINE FLORA of Cork and Kerry is comparatively poor, and 

 nearly all the rare species occur in Kerry only Saxifraga hirta and 

 S. affinis, Saussurea alpina^ Air a alfiina, Saxifraga aizoides, 

 Draba incana, Subularia aquatica, Polystichum Lonchitis and 

 Thalictrum alinum,Poa alpina,Polygonum viviparum, Alchemilla 

 alpina the four last on Brandon only. A remarkably dwarf form of 

 the Adder's -tongue occurs on Brandon Head. It was found by H. C. 

 Hart several years ago. 



The following LOWLAND SPECIES deserve particular mention : 



Simethis bicolor, one of the rarest British plants, occurs plentifully 

 near Derrynane Abbey, and in other places along the Kenmare 

 estuary. 



Bartsia viscosa is frequent in Kerry and South Cork, especially near 

 the sea-coast. 



Lepidium latifolium (Dittander), perhaps a relic of ancient culti- 

 vation, grows in Cork, at Corkbeg, and near Youghal harbour, and is 

 recorded also from near the head of Kenmare river, and near Kinsale. 



Subularia aquatica, and with it Isoetes echinospora, is found in 

 Killarney Lakes. 



Helianthemum guttatum is plentiful near the old ruins on Three- 

 Castle Head, Cork. 



Lathyrus maritimus grows, or. grew, on the sandy shores of Castle- 

 maine harbour. 



Galium boreale is plentiful on the shores and islands of Killarney 

 Lakes. 



Pyrola media is found near Ballyvaughan, and other places in 

 Burren. 



Wahlenbergia hederacea occurs along the Flesk near Killarney, and 

 near Lispole Station towards Connor Hill ; also along the rivers Lee and 

 Bandon. 



Cicendia filiformis is found on the shores of Lough Guitane, and at 

 Lough Currane ; at Waterville and Glenmore Lake, in Kerry ; at Bere- 

 haven, Glengarriff, Dursey Island, etc., in Cork. 



Orobanche Hedercz Muckross, on the Abbey walls, and on 

 islands in the Lakes of Killarney, and at Derrynane, Kerry ; frequent 

 in Cork. 



