174 26. HOLORAGIACEE. — 27. LYTHRACER. 
387. Ceratophyllum demersum et submersum, Linn. 
Provinces lL to11--1415. Native. 
Lat. 50—57. Cornwall, Dorset, Kent. — Edinburgh, Forfar. 
Zones 12. Low grounds. Localities imperfectly separable. 
Census 13 26 40. Ireland 4 LEnglish-british type. 
Europe all, except Lapland and Finmark. 
Russia 6-438. Himalaya. Siberia. 
Algeria. Azores. — Faroe. Iceland. America. Columbia. 
389. Lythrum Hyssopifolia, Linn. 
Provinces [1 2] 8 4 [5 6]-8 9 [101112]. Native? 
Lat. 51—54. Hertford! Cambridge! Derby? Lancast.? Cumb. ? 
Zone 1? Old authorities for other counties, Kent to York. 
Census 4 ? ? Ireland? English type? 
Europe spa ita tur aus ger fra cha net. Hanover. 
Russia 65 43. Siberia. 
Algeria. Canaries. Azores. — (America). 
390. Lythrum Salicaria, Linn. 
Provinces 1 to 16. Native. 
Lat. 50—57. Cornwall, Wight, Kent. — Argyle, Perth. 
Zones 1 2 ? Humber to 250 yards. Lakes 150 yards. 
Census 16 3] 79. Ireland 12. English-british type. 
Europe all, except Finmark. 
Russia 654321. West-asia. India. Siberia. 
Algeria. — America, “ probably native”; Torrey and Gray. 
391. Peplis Portula, Linn. 
Provinces all. Native. 
Lat. 50—60. Cornwall, Wight, Kent — Sutherland, Orkney. 
Zones 1 28. Humber to 400 yards. Lakes to 250 yards. 
Census 18 86 80. Ireland 12. British type of distribution. 
Europe all, except Finmark. 
Russia 6 41 3. 
Algeria. Azores. 
