Lemna.] LEMNACEiE. 309 



Wade Gallovid. — 9, Ditch at Hazlewood, near Sligo ; Admiral 

 Jori^s. — 12. Not unfrequent near Belfast; Flor. UUt. and 

 Flor. Bdf. Drains at Myroe, Derry ; D. M. In and about 

 Lough Neagh ; D. M. 



Probably overlooked in many places. 



2. L. minor (Linn.) — Common Duckweed. 

 Districts 123456789 10 11 12 

 Lat. 51°-56°. Throughout Ireland. 

 Type in Great Britain, British. 



Ponds and ditches ; common. Fl. June, July. 



3. L. polyrrhiza (Linn.) — Chreater Duckweed. 

 Districts ----5 6 7-____ 

 Lat. 53°-54:°. Middle of Ireland. 

 Type in Great Britain, English, inclining to Germanic. 



Ditches and pools ; local and rare. FL June. 



5. Brackish ditch near Irishtown, Dublin ; D. M. Pond 

 in the Phoenix Park ; A. G.M. — 6. Common about Limerick ; 

 Flor. Hib. — 7. Belvedere Lake, West-Meath ; D. M. Pools 

 near Mullingar ; Mr. F. J. Foot. 



Flowers have not yet been found in ihe British Isles. 



4. L, gibba (Linn.) — Gfibbozts Duckweed. 

 Districts ----56----- 12 

 Lat. 63°-54°. East, West, and North-east of Ireland. 

 Type in Great Britain, English, inclining to Germanic. 



Ditches and pools ; local and rare. Fl. June, July. 



5. Pond near Glasnevin ; D. M. Ardee bog, Louth ; Ir. 

 Fhr. Bog of Cool, below Ardee ; the late Mr. J. White. — 

 6. Near Limerick ! Prof. Harvey. — 12. Ditch near the Belfast 

 Linen Hall ; Lagan Canal ; Flor. Ulst. Abundant by the 

 Lagan, and near Lough Neagh ; D. M. 



Probably occurs in many other localities. 



