63. POLYGONACER. 801 
942. Polygonum dumetorum, Linn. 
Provinces 123-5----- [11]. Native. 
Lat. 50—52. Somer.! Dorset! Hants! Surrey ! Herts! Monm.! 
Zone 1. Low grounds. Sussex; Borrer. Essex; Varenne. 
Census 4 6 7. Ireland 0. English-germanic type. 
Europe all, except Lapland and Finmark. 
Russia 6 54832. India. Siberia, 
— “America.” But the American plant is P. scandens exclusively ? 
943. Rumex Hydrolapathum, Huds. 
Provinces 1 to 13 - [15] 16. Native. 
Lat. 50—57. Cornwall, Wight, Kent. — Isla! Perth? 
Zones 1 2 ? Lowgrounds. Formerly confused with R. aquaticus. 
Census 14 26 58. Ireland 8. English type of distribution. 
Europe spa ita ? aus ger fra cha net den got - swe. 
Russia -- 48. Cyprus? 
— America? 
944. Rumex crispus, Linn. 
Provinces all. Native. 
Lat. 50—61. Cornwall, Wight, Kent. — Orkney, Shetland. 
Zones 1238. Tyne to 650 yards. Humber to 400 yards. 
Census 18 88 95. Ireland 12. British type of distribution. 
Europe all, except Lapland and Finmark? <“ Altenfiord.” 
Russia 65 432. West-asia. Siberia. China. Japan. 
Algeria. Canaries. Azores. — (America, introduced). 
944%. Rumex aquaticus, Linn. 
Provinces [1 - - 4 5] ----1011 12181415 161718. Native. 
Lat. 54—61. Westmoreland, York. — Orkney, Shetland. 
Zones- 23 ? Highlands to 530 yards. Tyne to 450 yards. 
Census 9 14 28. Ireland 0. Scottish type of distribution. 
Europe -? Germany. France. Scandinavia all. 
Russia 66-4321. Himalaya. Siberia. Kamtschatka. 
— Faroe. (Iceland). Greenland. America. Columbia. 
