Praeger — Gleanings in Irish Topographical Botany. 83 



Populus tremula L., var. glabra Syme. 



8 Limrck. fAcIare '99 — A. Somerville. 

 16 Galw. W. Clonbiu- '95— E. S. Marshall. 



Iris Pseud-acorus L., var. acoriformis (Boreau). 



27 Mayo W. Mallaranny district abundant '99— Marshall. 

 Apparently the usual Irish form. 



Allium vineale L., var. compactum (Thuill.). 



8 Limrck. Limerick '99 — A. Somerville. 



Juncus effusus x glaucus = J. difFusus Hoppe. 

 7 Tipp. S. Carrick-on-Suir '00— E. A. Phillips. 

 Also in Dublin only. 



Luzula erecta Desv. 



f. umhellata in 5, 10, 15, 18, 29, 36, 37, 38, 39. 



f. congesta in 1, 5, 6, 8, 10, 15, 16, 18, 29, 38, 39, 40. 



Both are probably universal. 



Arum maculatum L. 



The spotted-leaved form, from which the species derives its name, 

 is apparently very rare in Ireland. The only notes I have are : — 



15 Gralw. SE. Portumna '99— Mrs. Joyce. Dunsandle '99 — P. 

 21 DubHn GlencuUen '02— G. H. Pethybridge ! 



Typha latifolia L., var. media Syme. 



9 Clare Inishmaan '90 — Nowers and "Wells 6^i. 



Sparganium ramosum Huds., var. microcarpum Neum. 



16 Galw. W. Maam and Clonbur frequent '95— M. & S. 5^5. 

 26 Mayo E. Frequent at Clonbur '95— M. & S. 5^5. 



38 Down Loughanisland (Waddell)— S. & P. 874. 



Potamogeton crispus x obtusifolius = P. Bennettii Fryer. 

 37 Armagh Canal below Caledon '92— P. See Irish Nat., 11., 182. 

 This hybrid was described by Alfred Fryer in 1895 {Journ. Bot., 

 xxxiii., p. 1, tab. 348) from Grangemouth, Stirlingshire, which still 

 remains the only other British station. 



