105 



hampered with the plants of the Channel Islands ; why not the whole 

 British empire, or at least Heligoland and Gibraltar ? 



F. P. Pascoe. 



Trewhiddle, near St. Austell, 

 March 17th, 1848. 



[And Jamaica ? I quite agree with my correspondent's view on 

 this subject. The geographical boundaries of a Flora should be 

 natural, not political. — E. N.~\ 



Note on Datura Stramonium. By F. P. Pascoe, Esq. 



In the summer and autumn of 1846 after the removal of an old out- 

 house, several plants of this species made their appearance on its site, 

 as well as in an adjacent field, &c. It was perfectly new to the 

 gardener, who had been here eighteen years. Although I took some 

 trouble to scatter its seed, last year passed away and not a specimen 

 was to be found. I believe that it is generally a very uncertain alien, 

 at the best, in this country. In Cornwall it has been occasionally 

 noticed in two or three other places. 



F. P. Pascoe. 



Trewhiddle, near St. Austell, 

 March 17th, 1848. 



Notice of the ' London Journal of Botany] Nos. 73 to 75, for 

 January to March, 1848. 



No 73. Original Papers : " On the Structure of Cruciferous 

 Flowers ; " by A. Moquin-Tandon and P. B. Webb. " Contributions 

 to the Botany of South America ; " by John Miers, Esq. " Characters 

 of three new Australian Mosses ; " by W. Wilson, Esq. Botanical 

 Information : Dr. Thomson's ' Scientific Mission to Thibet.' Sendt- 

 ner's ' Expedition into Bosnia.' Fendler's ' Journey to Santa Fe.' 

 Nelumbium Jamaicense. Notices of Books: De Candolle's ' Pro- 

 dromus Systematis Naturalis Regni Vegetabilis,' 11th volume or part. 

 Schomburgk's ' History of Barbadoes.' Harvey's ' Nereis Australis ; 

 or Algae of the Southern Ocean.' Hooker's ' Flora Antarctica.' 

 Darlington's 'Agricultural Botany.' Rainey's 'Experimental Inquiry 

 into the Cause of the Ascent and Descent of the Sap.' Mac Ivor's 

 ' Hepaticae Britannicae,' 



Vol. hi. q 



