lO Bailfv, Adventitious Vegetation of Si. Anne' s-on-thc- Sea. 



EXPLANATIONS OF PLATES. 

 P/ate I. Adult examples of Ambrosia artemisiafoUa, Linn., in 

 which the flowering spikes contain antheriferous flowers, 

 almost to the exclusion of pistilliferous flowers. (See p. 5.) 

 The long slender processes, from which new plants 

 originate, are shown in the four horizontal stolons of the 

 lowermost plant ; several other stolons are also seen hanging 

 from the base of the stems of the three plants on the sheet. 

 (See p. 6.) 



Plate II. Adult examples of Ambrosia artemisiirfolia., Linn., in 

 which the flowering spikes contain pistilliferous flowers, to 

 the exclusion of all antheriferous flowers— even at the tip 

 of the inflorescence. The flowers extend for an inch and a 

 half down the inflorescence of the left-hand plant, and for 

 three inches on the right-hand plant, the flowers lying in the 

 axils of the spreading bracts which separate each verticil. 

 (See p. 5.) 



The left-hand example has a stolon of older growth than 

 any of those shown in Plate I. ; this stolon is twenty inches 

 long and extended much further in the ground l)Ut broke off 

 when being removed therefrom : the portion attached to the 

 plant shows five upward growths which would have formed 

 new plants in the following year. (Sec p. 6.) The right- 

 hand example has no organic connection with this stolon ; 

 it merely lies over it on the sheet. 



Plate III Flowering example of Vicia vitlosa, Roth, bearing 

 ten flowering spikes not all equally developed. In the 

 growing state the flowers are of a full claret colour, the 

 standard and wings showing no contrasts in colour. The 

 plant has not been observed in fruit this season. (See p. 8.) 



All three plates photographed from herbarium specimens 

 derived from the sandhills near St. Thomas's Church, St. Anne's- 

 on-the-Sea, Lancashire. In the living state the plants were 2^ 

 times the size of their representations on the plates. 



