EXPLANATIONS OF THE FORMULA. 63 



first word is one taken fi-om the following series of terms, 

 used to express the civil claims of the species : — 



1. Native. — Apparently an aboriginal British species ; 



there being Httle or no reason for sup- 

 posing it to have been introduced by hu- 

 man agency. Examples : Corylus, Cal- 

 hma, Bellis, Teesdalia. 



2. Denizen. — At present maintaining its habitats, as if a 



native, without the aid of man, yet liable 

 to some suspicion of ha^dng been origi- 

 nally introduced. Examples : Aconitum, 

 Pseonia, Viola odorata, Impatiens Noli- 

 me-tangere. 



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



and seldom found except in places where 

 the gi'ound has been adapted for its pro- 

 duction by the operations of man ; with 

 some tendency, however, to appear also 

 on the shores, landslips, &c. Examples: 

 Adonis, Papaver, Agrostemma, Melilotus 

 leucantha. 'Xci /. ^SS. 



4. Alien. — Now more or less established, but either pre- 



sumed or certainly known to have been 

 originally introduced from other coun- 

 tries. Examples : Sempervivum, Mimu- 

 lus, Hesperis, Camelina. 



5. Incognita. — Reported as British, but requiring con- 



firmation as such. Some of these have 

 been reported through mistakes of the 

 species, as Ranunculus gramineus. Others 

 may have been really seen in the cha- 

 racter of temporary stragglers fi'om 

 gardens, as Gentiana acaulis. Others 

 cannot now be found in the localities 



