MancJiester Memoirs, Vol. li. (1907), No. 11. 9 



yard. At present a large sandhill lies on the north just 

 beyond the Ambrosia patch, from which the wind is 

 constantly moving the sand to the adjoining grounds. So 

 long as this hill remains in the churchyard, the plant is 

 liable to be overwhelmed by north winds. 



A third large area crowded with the plant occurs near 

 the iron church on the western edge of Orchard Road. 

 In this station three of its sides are built upon, and, in 

 consequence, it does not receive as much direct sunlight 

 as in the other stations, with the result that the plants are 

 more spindly, attaining a height of from two to three feet, 

 and they do not flower as early as on the open sandhills. 

 Here again, absorption of one half the total area has 

 taken place last winter by the erection of three 

 houses ; judging by the rate at which building is 

 progressing in this part of St. Anne's, the present year 

 will probably see the remaining half built upon. 



Ambrosia artemisifolia is becoming a persistent 

 colonist in many parts of western Europe, coming in with 

 lucerne, clover, and other seeds imported from Canada 

 and the United States. An interesting paper by M. 

 Edouard Heckel on the way it has become naturalised in 

 France during the last thirty years will be found in the 

 Bulletin de la Societe Botanique de France for 1906, 

 vol. 53, pp. 600 — 620; the reproduction of the photo- 

 graphs given in the Bulletin of the plant as it grows at 

 Eaux de Challes, near Chambery, in Savoy, may be 

 compared with the plates representing the St. Anne's 

 plants. This species is also spreading in England. I 

 reported to the Watson Botanical Exchange Club its 

 occurrence in 1903 in one of the botanical excursions of 

 the British Association during the 1903 meeting at 

 South port — when it was found at Birkdale by Mr. Henry 

 Ball ; and Mr. Arthur A. Dallman, of Liverpool, has just 



