156 The Irish Naturalist* [July, 



The following plants collected are new to Ireland : — 



Phyilophora Trail I if, Holm, et J3att.— Torr Head. 



Elachistea (Streblonema) Areschougii, Crn.— Murlough, on 

 Himanthalia lorca. 



Rivularia biasolettiana, Menegh.— On rocks near high water mark 

 exposed to spray ; Torr Head. 



Blastophysa Rhizopus, Rke.— Torr Head. 



Phaeostroma pustulosum, Kuck. — Murlough, on Laminar/a 



saaharina. 



Wild man nia mi n iata, Fosl. — This plant, collected at Murlough Bay, 

 floating up at high tide, is of interest owing to the lateness of the 

 season when observed. It flourishes best during early spring, and, 

 according to Dr. Foslie, should perhaps be considered as only a form 

 of Diplodcnna amplissimum, collected man) 1 years ago on this coast at 

 Cushendall by the late Dr. Moore. Kjellman figures and describes 

 this latter plant in " The Algae of the Arctic Sea." pi. 18. 18S3. 



Porphyra Ieucostlcta, Thur.— Larne ; Murlough Bay. 



Polysiphonia divaricata, Kiitz. — Washed up, probably from very 

 deep water, at Murlough Baj T , on the second day after arrival. This 

 plant, included in Holmes and Batters' " Revised List of British 

 Marine Algae " as occurring in district 4, where it was probably 

 collected by Dr. Magnus, of the North Sea exploring party, does not 

 appear to have been found since. This plant, which Mr. E. M. 

 Holmes kindly identified as Kiitzing's P. divaricata, is doubtfully a 

 true species, as I am not aware of fruit having ever been found. It 

 may be only a rare variety of some better known plant. 



Ceramlum Derbesil, Sol. Kutzing, Tab. Phyc, t. 14, vol. xiii. — 

 Murlough Bay, on rocks at low water ; it is new to the British Flora. 



I would here gratefully acknowledge the help and kindness 

 extended and shown to me by Mr. E- M. Holmes, Dr. Edward 

 Bornet, Prof. Sauvageau, Dr. Foslie, and Prof. Johnson. 



Royal College of Science, Dublin. 



