172 26. HALORAGIACER. 
379. Hippuris vulgaris, Linn. 
Provinces 1 to 16-18. Native. 
Lat. 50—61. Cornwall, Wight, Kent. — Orkney, Shetland. 
Zones 123. Humber to 250 yards. 
Census 17 36 72. Ireland 12. British type of distribution. 
Europe all, unless Spain and Turkey to be excepted. 
Russia 6- 4321. India. Siberia. Kamtschatka. 
— Iceland. Greenland. America. Columbia. 
380. Myriophyllum verticillatum, Linn. 
Provinces 1 2345 [67] 891011 [12--15--18]. Native. 
Lat. 50—55. Cornwall, Sussex, Kent. — Northumberland. 
Zones 12. Humber to 250 yards. 
Census 9 15 85. Ireland 7. English type of distribution. 
Europe spa ita - aus ger fra cha net den got nor swe. 
Russia 6-432. India. Siberia. Davuria. ‘“ China.” 
Algeria. — Faroe? Iceland? America. Columbia. 
381. Myriophyllum spicatum, Linn. 
Provinces all; but much confused with no. 882. Native. 
Lat. 50—60. Carnarvon, Wight, Kent. — Hebrides, Orkney ? 
Zones 123. Humber to 400 yards. Lakes to 350 yards. 
Census 18 83 70. Ireland 7. British type of distribution. 
Europe all, except Lapland and Finmark. 
Russia 6-432 1. Siberia. 
Algeria. Canaries. — Iceland. America. 
382. Myriophyllum alterniflorum, De Cand. 
Provinces all. Native. Localities not fully recorded. 
Lat. 50—61. Cornwall, Wight, Sussex. — Hebrides, Shetland. 
Zones 1 23. Highlands to 400 yards ; also at 350, 300, etc. 
Census 18 29 42. Ireland 7. British type of distribution, 
Europe - ita - - ger fra cha net den got nor swe lap. 
Russia? Not in Ledebour’s Flora Rossica. 
Algeria. Azorcs. — 8. Greenland and Arc. Am.; Hook. dist. are. 
