^9^2. Irish ^ocietieSk Itg 



minima, Sow., &c. The first record from Ireland of Diadema lohatnm 

 was made by Mr. Bell a few years ago, when he discovered its plates, 

 spines and teeth, in the Planorbis zone, in this glen. The Yellow Sand- 

 stones were seen higher up the stream, and at the top of the glen the 

 junction or Lias and Glauconitic Sands was observed. Characteristic 

 fossils were obtained from all the stations. 



NOTES. 



BOTANY. 

 A Giant Specimen of Enteromorpha intestinalis 



While staying at Garretstown, near Kinsale, during the Easter recess, 

 I noticed a few long, green filaments of Enteromorpha intestinalis in a 

 narrow ditch of clear, running water, about a quarter of a mile from the 

 beach. This little stream drained some fields and ran by the side of 

 the road. The filaments were fixed at one end, and, with one exception, 

 were about eighteen inches in length. One filament had attained the 

 length of eight feet with an average breadth of one inch. 



I have frequently seen specimens of E. intestinalis up to about four 

 feet in length, but never larger. This growth of Enteromorpha was the 

 only example of a marine alga I could find in the whole course of the 

 stream, which, as one would expect, was fairly prolific in fresh-water 

 Confervae, Nasturtium and Myosotis. We are therefore confronted with 

 the problem of the origin of the solitary Enteromorpha so far from the 

 sea. The only semblance of an explanation I can offer is that its 

 progenitor or itself was dislodged from a cart-load of seaweed which the 

 local agriculturists use for fertilising their land, and thus found its way 

 into the stream. 



J. C. Johnson. 



University College, Cork. 



Peronospora Ficariae at Howth. 



On the loth of May, 19 12, specimens of Ranunculus repens were obtained 

 at Howth in which the under side of the leaves was covered by a parasitic 

 fungus. This on examination proved to be Peronospora Ficariae, Tul., 

 and is an addition to the Irish Flora, 



J. Adams. 



Royal College of Science, Dublin. 



ZOOLOGY. 



Land and Freshwater Mollusca from Glengariff. 



In the Journal of Conchology for April (vol, xiii., 191 2, pp. 257-9), 

 Staff-Surgeon K. H. Jones records a number of mollusca from the 

 Glengariff district. Among the species found are Pisidium ohtusa'e, 

 P. Lillfeborgi, and P. Steenbuchi, all new records for West Cork. Of 

 these P. Lilljehorgi has previously been taken in Ireland only in the north- 

 west, and P. Steenbuchi not nearer than Co, Clare. 



