94 The Irish Naturalist. August, 



NOTES. 



BOTANY. 



Plants of County Dublin. 



In the following notes I have endeavoured to fill up some gaps in 

 Mr. Colgan's " Flora of Dublin," and I have refreshed a few early records : — • 



Ranunculus irichophyllus Chaix. District 2— Sparingly in a ditch 

 near the windmill, Skerries, 191 8. This completes the series 

 for the county. 



Ranunculus hirsufus L. 4— Several plants on the railway bank 

 near the nth lock. Royal Canal, Blanchardstown. 



Sisymbrium Thalianum J. Gay. 7 —On a roadside wall above 

 Killakee, near the turn to Glencree, at 1,200 ft. Cyhele (2nd 

 edition) gives " to 1,000 ft. in Antrim " as the greatest eleva- 

 tion for Ireland. 



Sisymbrium pannonicum Jacq. 4 — Beside the Liffey near the foot 

 of Knockmaroon Hill, and again near the Wren's Nest. 

 7 — Abundant in waste ground in St. James's Gate Brewery. 



Senebiera didyma Pers. 2 — Near the harbour at Skerries. 

 4— Abundant as a garden weed at the rectory, Finglas. 



Medicago denticulata 1.. This appears to be a very rare Dublin 

 plant. It is recorded in " Cybele Hibernica " 1866 as having 

 once been found between Dolphin's Barn and Crumlin, but does 

 not appear to have been subsequently seen there. I first noticed 

 this — some dozen plants — in 191 8, beside the field-path from 

 Kimmage to Dolphin's Barn, and it appeared again in the same 

 place in 1919 and 192 1. 



Melilotus parvijiora Desf. 7 — Same station as above, 1920 to 1922 — 

 also at the west end of the large quarry at Mount Argus 

 brickworks. 



Trifolium arvense L. 3 — Very coramon on the Burrow, Portrane, 

 5 — Unusually abundant on the North Bull, 1922. 



Vicia hirsuia Koch. 2 — Abundant on south side of Loughshinny 

 harbour, 191 8. 



Saxifraga tridactylites L. 3 — In sandy fallows at north end of the 

 Island links, Portrane, 1922. 



Saxifraga granulata L. 5 — ^In 1919 I found a small patch of about 

 twenty plants, east of Kilbarrack churchyard, from which it 

 was apparently last recorded by Hart in 1866. Unfortunately 

 in 1920 a bungalow was built right on this spot. 



Gentiana campestris L. 7— In Glenasmole, in a field on the east side 

 of the Upper Reservoir. 



