800 



picion of having been originally introduced. 

 Examples : Aconitum, Paeonia, Viola odorata, 

 Impatiens Noli-me-tangere. 

 3. Colonist. — A weed of cultivated land or about houses, and sel- 

 dom found except in places where the ground 

 has been adapted for its production by the opera- 

 tions of man ; with some tendency, however, to 

 appear also on the shores, landslips, &c. Exam- 

 ples : Adonis, Papaver, Agrostemma, Melilotus 

 leucantha. 

 " 4. Alien. — Now more or less established, but either presumed or 

 certainly known to have been originally introduced 

 from other countries. Examples : Sempervivum, 

 Mimulus, Hesperis, Camelina. 

 " 5. Incognita. — Reported as British, but requiring confirmation as 

 such. Some of these have been reported through 

 mistakes of the species, as Ranunculus gramineus. 

 Others may have been really seen in the character 

 of temporary stragglers from gardens, as Gentiana 

 acaulis. Others cannot now be found in the lo- 

 calities published for them, as Tussilago alpina 

 and other species, reported by or from Mr. George 

 Don ; though it is not improbable that some of 

 these may yet be found again. A few may have 

 existed for a time, and become extinct, as Echi- 

 nophora spinosa, 

 " 6. Hibernian, or Sarnian. — Native, or apparently so, in Ireland, 

 or in the Channel Isles, though not found in 

 Britain proper." 

 These long and explanatory quotations will give the reader a better 

 idea of Mr. Watson's work than any description of ours. The present 

 is a first volume, and contains the author's observations on 503 spe- 

 cies, beginning with the Ranunculaceae and ending with the Umbel- 

 liferse. We have only to add, that we wish it that success which the 

 labour bestowed on it most assuredly deserves. 



K. 



