348 



SUMMARY. 



Of 28, found in 26 sub-provinces : 

 Galeopsis versicolor. 

 Vaccinium Oxycoccos. 

 Lathyrus sylvestris. 



Of 26, found in 25 sub-provinces : 

 Empetrum nigrum. 

 Juncus maritimus. 

 Sedum anglicum. 

 Drosera intermedia. 

 Asplenium marinum. 



Of 28, found in 24 sub-provinces : 



Pyrola minor. 

 Of 27, found in 23 sub-provinces : 



Polypodium Dryopteris. 



Kubus saxatilis. 



Of 31, found in 22 sub-provinces : 

 Viola lutea. 

 Glaucium luteum. 

 Lycopodium alpinum. 

 Allosorus crispus. 

 Juncus obtusifolius. 

 Lepturus incurvatus. 



Of 26, found in 21 sub-provinces : 

 Myrrhis odorata. 

 Listera cordata. 

 Vaccinium Vitis-Idsea. 



Of 17, found in 20 sub-provinces: 

 TroUius europseus. 

 Hymenophyllum "Wilsoni. 

 Drosera anglica. 

 Carduus Eriopborus. 



Sagina maritima. 

 Salsola Kali. 

 Potamogeton heterophyllus. 



Eestuca rubra. 

 Carex extensa. 

 Anagallis cserulea. 

 Potamogeton rufescens. 



Eriophorum latifolium. 



Eryngium maritimum. 

 Carex teretiuscula. 



Phleum arenarium. 

 Beta maritima. 

 Cochlearia danica. 

 Hippocrepis comosa. 

 Convolvulus Soldanella. 



Pyrethrum maritimum. 

 Artemisia maritima. 

 Centaurea nigrescens. 



Statice Limonium. 

 Crambe maritima. 

 Polygonum Eaii. 

 Anchusa sempervirens. 



Of the rarer species, found in less than 20 sub-provinces, it would take 

 up too much space to particularise our wants. 



IV. Comparison with Adjacent Counties.* — The following is a list of 

 those species — native and naturalised — recorded in one or more, but not in 

 all, of the group of five counties of which Middlesex forms the centre. 

 They are numbered consecutively ; a ? implies doubt ; a signifies that the 

 species is a mere casual. Many maritime species are restricted to Essex ; 

 the flora of Bucks is as yet imperfectly known. 



* A very small portion of Kent may be considered ' adjacent ' to the Isle of Dogs, from 

 whicli it is separated by the Th!;mes. To have included the flora of Kent in the following 

 comparison, however, would have extended it very considerably, as that county possesses 

 many additional species. 



