A HISTORY OF BERKSHIRE 



above table such is not the case, no fewer than 350 being unrecorded. 

 And while it is probable that a few additional species will reward the 

 searcher, yet there are few areas which have been more systematically 

 worked than Berkshire ; but it must be borne in mind that however 

 minute and assiduous the research of a botanist may be, finality can never 

 be attained, since only a small portion comparatively of the actual surface 

 of the ground comes within his observation, and that only for a short 

 time. 



In the Compendium to the Cybele Britannica, Mr. H. C. Watson 

 made a classification of the British plants according to their distribution. 

 He regarded the universally distributed plants as ' British,' the southern 

 plants as ' English,' the species having their headquarters in the western 

 counties as ' Atlantic,' the eastern plants as ' Germanic,' while the 

 northern species were ' Scottish ' or ' Highland.' ' Intermediate ' was 

 applied to plants having their headquarters in the midlands and 

 thinning out to the north and south ; ' local ' was applied in a few 

 cases of almost isolated species. These terms were further differentiated 

 by combining them ; thus, ' British-English ' means a plant of wide 

 diffusion with a tendency towards the southern type, and ' English- 

 British ' signifies a plant of a southern type widely diffused. 



Adopting the specific limits laid down by Mr. Watson (and omit- 

 ing about 1 20 critical and other species, some of which have been in- 

 cluded in the British flora since the publication of the Compendium] 

 our Berkshire flora is constituted as follows : 



ENGLISH 



ENGLISH-BRITISH . 

 Intermediate , 

 Germanic 

 Atlantic . . 

 Local . 



Total 



BRITISH. 



British-English . 

 British-Germanic 



Scottish . . 



Atlantic . 



Intermediate . 



Highland . 



Total . 



GERMANIC . . . 

 Germanic-English 

 British. 



183 



67 



3 



47 

 i 



3 



34 



379 

 in 



i 



9 

 i 



2 

 3 



_ 

 506 



23 

 4 



Myosotis sylvatica, Aquilegia, Carex elata 



Scutellaria minor 



Elatine Hydropiper, Sisymbrium Sophia, 

 Tordylium y the latter now extinct 



Local 



Capnoides claviculata (CorydaHs) 

 Saxifraga granu/ata, Polygonum Bistorta 

 Vaccinium Myrtillus, Lycopodium Selago, 

 Chrysosplenium oppositifolium 



Astragalus danicus, A. glycyphyllus, Con- 

 vallaria, Hypochceris glabra 



Orchis militaris, O. Simia (? extinct), 

 Muscari (? if native) 



Total 



49 



