107 
AROI DEiE. 
DATE. COLLECTOR. 
1267. Arum maculatum, Linn. 
Woods and hedgebanks from Berwick, 
etc., southwards. 
Distrib. Europe, N. Africa. 
Sp. Thorp Arch, Yorks. ... ... ... 1810 ... S. Hailstone 
Knavesmire Wood, York ... ... 1892 ... H. J. Wilkinson ... 
1268. Acorus Calamus, Linn. 
Sides of ponds, etc., from York and 
Lancaster southwards, naturalized 
in Scotland and Ireland. 
Distrib. Europe, Siberia, Himalaya and 
N. America. 
Sp. luce, near Wigan, Lancs. ... ... 1814 ... S. Hailstone 
Howsliam, Yorks. ... ... ... 1800 ... Rev. J. Dalton .. 
LEMNACE/E. 
1269. Lemna trisulca, Linn. 
Still pools and ditches. 
DistHb. Europe, Siberia. 
Sjj. Selby, Yorks_ 
Yarmouth, Norfolk ... 
Near Ramsgate, Kent 
(1840)... 
1836 ... 
1888 ... 
Gibson ... 
S. Hailstone 
1270. Lemna minor, Linn. 
Still pools. 
Distrib. Almost universal. 
Sp. Esher, Surrey ... ... ... 1841 ... H. C. Watson .. 
Copgrove, Yorks. ... ... ... 1790 ... Rev. J. Dalton .. 
1271. Lemna polyrhiza, Linn. 
Still waters from Lanark & Edinburgh 
to Devon & Kent , soutlnvards. 
Distrib. Europe, Siberia, Madeira, N. 
America. 
Sp. Norwich, Norfolk ... ... ... 1806 ... Rev. J. Dalton .. 
Thames Ditton, Surrey ... ... 1843 ... H. C. Watson .. 
G- 
HERBARIUM. 
S. Hailstone 
H. J. Wilkinson 
S. Hailstone 
Rev. J. Dalton 
S. Hailstone 
? 5 
S. Hailstone 
Rev. J. Dalton 
Rev. J. Dalton 
S. Hailstone 
