64 EXPLANATIONS OF THE FORMULA. 



published for them, as Tussilago al- 

 pina and other species, reported by or 

 from Mr. George Don ; though it is not 

 improbable that some of these may yet 

 be fomid again. A few may have existed 

 for a time, and become extinct, as Echi- 

 nophora spinosa. 

 6. Hibernian, or Samian. — Native, or apparently so, in 

 Ireland, or in the Channel Isles, though 

 not found in Britain proper. 

 Any Hibernian botanist who may look at the epitome of 

 distribution for British species, in this volume, will see the 

 unavoidable necessity for omitting Ireland and the distribu- 

 tion of its plants. If he should not immediately compre- 

 hend this necessity, let him endeavour to illustrate the dis- 

 tribution of species within Ireland, by a similar fonnula. 

 He will soon find out that the lack of data would render 

 the effort fiitile, unless he could first devote several years 

 to the task of collecting and comparing facts. 



The author of the present work, indeed, might still say 

 almost the same thing to English botanists, if he could sti- 

 pulate against any use being made of his own fomier writ- 

 ings on the same subject. But even imder this stipulation, 

 the English botanist would go to work with far more accu- 

 mulated materials, than could be fomid in reference to the 

 botany of Ireland. It is much to be wished, however, that 

 some native botanist would commence a Cybele for Ireland, 

 incomplete as he must unavoidably make it. He would, at 

 all events, have one very great advantage, in the absence of 

 those hundreds of false localities which have been pub- 

 lished for English plants ; and wliich, being positive errors 

 and misinformation, are far more troublesome than the ne- 

 gative inconvenience of deficient information. 



The second word, of the same line or paragi-aph, is also 



