XII. TYPES OF DISTRIBUTIOX. 503 



be sufficiently apparent that the triple division of the 

 areas, in the lists on pages 282 to 312 of this present 

 volume, is resolvable into those types of distribution 

 nearly (not quite exactly) thus : — 



1. Austral, into English — Germanic — Atlantic. 



2. General, into British ; — some "australs " added thereto. 



3. Boreal, etc., into Highland — Scottish— Intermediate. 



The local species being scattered partly among the aus- 

 ti'als, partly among the boreals. It may further assist to 

 give correct ideas about these geographic groups in the 

 general flora, if they are now presented to the eye in 

 a more direct connexion with the latitudinal and longitu- 

 dinal divisions of the island, thus : — 



1. British type, — species widely spread through S. M. N. Brit:iin. 



2. English type, — species chiefly .seen in South or in S. M. Britain. 



3. Scottish type, — species chiefly seen in North or in N. M. Britain. 

 Intermediate type, — species chiefly seen in Mid Britain. 



4. Highland type, — species chiefly seen about the mountains. 

 6. Germanic type, — species chiefly seen in East England. 



6. Atlantic type, — species chiefly seen in West England. 

 Local species, restricted to single or few provinces. 



The reader is now requested to look back to page 54 

 of volume first, where it is sought to be impressed on 

 attention, that no abrupt distinction is traceable between 

 these types of distribution. It is very important to keep 

 this fact in recollection. The differences between them 

 are real, because a prevailing tendency to such peculiari- 

 ties of distribution is quite apparent among the plants of 

 this country ; so that examples can be numerously cited 

 in illustration of each of the six (or eight) types here 

 adopted. It is not less true also, that the distribution of 

 many species exhibits a mingled and intermediate cha- 

 racter ; inducing much uncertaint)', and leaving a wide 

 option in deciding the question, where among them a 

 separation would be best made between the groups. This 



