the Science of Botany. 5 



Dr. Linnceus has taken the moft elTential 

 parts of the plants, which are thofe of the 

 fruftification, to eftablifti the charadters of 

 the genera, in a more fabftantial manner, than 

 all the authors who have preceded him. The 

 exacl defcriptions which he has given of all 

 thefe parts, and the fliort natural terms which 

 he has ufed, together with the obfervations 

 which he has added to thofe of his genera, 

 which carry any effential charader, or which 

 are liable to exception in any of the fpecies, 

 are owing to the labour of this worthy bota- 

 nift. It is certain, that thefe defcriptions will 

 have this advantage, that they can be applied 

 to any method which may be hereafter invent- 

 ed, for the eftablifliing of new genera, when 

 the old ones are infufficient, by the jundion of 

 thofe whofe identity have efcaped the firft me- 

 thodifts, by the difmembering of fome of them, 

 which were overcharged with fpecies, (which 

 fatigue and embarrafs the learner,) in fhort, by 

 clearing of fome other whofe charaders are 

 equivocal or obfcure. Dr. Linnam has found 

 a way of janging the fpecies under their true 

 genera, and of feparating thofe which do not 

 properly belong to them. 



Thediftinguifhing varieties from real fpecies, 

 is a part of the fcience of botany not well un- 

 dcrftood. 5 for as variety of foils, fituation, and 



a 3 culture, 



