345 82. LEMNACEA, — 82*. ARACER. 
1]41*. Wolffia arhiza, Wimm. 
Provinces - 2 8. Native. Likely in other provinces. 
Lat. 50—52. Middlesex ; Trimen, 1866. Hants. Surrey! Essex. 
Zone 1. Low grounds. Full area not ascertained. 
Census 2 8 4. Ireland G. Local-germanic type. 
Europe spa ita - aus ger fra cha net. From England to Transyl- 
vania, from Naples to Holland. Sparsely reported, but 
minute and likely to be disregarded. 
1142. Arum maculatum, Linn. 
Provinces 1 to 14 (15). Native. (Edinburgh — Moray). 
Lat. 50—56 (58). Cornwall, Wight, Kent. — Berwick, Roxburgh. 
Zones 1 2. Tyne to 825 yards. Humber to 250 yards. 
Census 14 28 62. Ireland 12. English type of distribution. 
Europe spa ita tur aus ger fra cha net den got. 
Russia --- 3. “Livonia. Lithuania. Warsaw.” 
Algeria; Desf. atlant. 
1142*. Arum italicum, Mill. 
Provinces - 2. Native; but also planted at Steephill. 
Lat. 50—51. Isle of Wight; A. G. More! 
Zone 1. Coast level or thereabout. 
Census 1 1 1. Ireland 0. Local-english type. 
Europe spa ita tur aus - fra cha net. Holland. 
Russia, absent. 
Algeria. Madeira? Azores. 
1148. Acorus Calamus, Linn. 
Provinces 12345 6-89 10--(13). Native. 
Lat. 51—55. Somerset, Hants, Surrey. — Lancaster, York. 
Zones 1 2. Low grounds. (Devon, Sussex — Ayr, Renfrew). 
Census 9 17 25. Ireland 0. English type of distribution. 
Europe - ita tur aus ger fra - net den got nor swe. 
Russia 6-482. India. Siberia. Davuria. 
— (America, probably introduced; Gray Bot. N.§.) 
