Sisymbriim.] CEUCIFEE^. 29 



2. S. officinale Scop. — Sedge Mustard. 



Districts I. II. III. IV. V. YI. VII. VIII. IX. X. XI. XII. 



Lat. 51^°-56i°. ThroTighout Ireland. Type, Britisli. 



Waste places, baais, and roadsides; common. Fl. May- 

 September. 



Sea-level in N. Antrim and in S. Cork. To 900 ft. in Dublin 

 (iV. C). 



Seems to be rarer in tbe "West tban in the East. 



3. J S. SopMa Linn. — FUx-weed. 



Districts — II. — rV. V. — — — — XII. 



Lat. 62J°-54|-°- East Ireland only. Type, Britisli-Englisb. 



Lowland. Sandy cultivated fields and in waste places and on 

 roofs by tbe sea ; rare. Fl. June- August. 



II. Eoadside between New Geneva and Passage {Br. Biwker) : 

 Templeton MS. Passage, "Waterford {Miss S. Grulli) : Cyl. — 

 IV. Murrough of Wicklow {Moore) : Cyl. — V. Upon some of the 

 low thatched cabins at the end of New-street, near Black Pits, 

 Dublin City : Threlheld, About Portmamock : Jr. Flor. i8jj — 

 and in 1894; If. C. At Howth village; on Ireland's Eye, and 

 abundant between Sutton and Baldoyle : Flor. SowtJi. Sand-hills 

 by the creek at Donabate and on the south shore of the estuary 

 below Drogheda {More) : Ree. Add. Abimdant in sandy fields 

 Bouth of Portrane peninsula opposite Malahide, also at Rogerstown 

 and Eush and on walls and thatched roofs in Eush village, 1893; 

 JSf. C— XII. Wear Carrickfergus, 1812 {Templeton) : Whitla MS. 

 At Magheramome {Stewart) : Flor. N.-F. 



Perhaps fully established only in Co. Dublin. 



4. f S. Irio Linn. — London Rocheit. 



Districts — — — — V. — — — — — — — 



Lat. 53J°-53i°. County of Dublin only. Type, English-local. 



Lowland. "Waste places, roadsides and on walls; very local. 

 Fl. May-July. 



V. Common about Dublin : Templeton MS. Beside walls going 

 to Glasnevin : Ir. Flor. Eoadsides south of Eathf amham ; Clon- 

 fikeagh and MiUtown {More) : Ree. Add. By the railway at 

 Sydney Parade, 1867 (^F". O. Smith): Serb. Glasnevin. Eailway 

 at Lansdowne-road, 1875; Greenwood Pirn. Abundant along the 

 railway Hne from Merrion to Lansdowne-road, 1894; N. G. A few 

 plants at Claremont, Howth: Flor. Sowth. Kimmage-road and 



