360 



SUMMARY. 



The second list, 'psammophiles,' contains the following Middlesex species : 



Teesdalia nudicaulis. 

 Erysimum cheiranthoides. 

 Ornithopus perpusillus. 

 Lepigonum rubrum, 

 Eadiola raillegrana. 

 Montia fontana. 

 Galium saxatile. 

 Filago minima. 

 Senecio sylvaticus. 

 Jasione montana, 

 Juncus squarrosus. 

 Echinochloa Crus-galli. 

 Aira caryophyllea. 

 Phragmites communis. 

 Festuea Myurus. 

 Aira prsecox. 

 Myosurus minimus. 

 SisjTnbrium Sophia. 

 Lepidium ruderale. 

 Di an thus prolifer. 

 Ulex europseus. 

 Sarothamnus scoparius. 



In the list of 'pelophiles ' we find 



Stellaria Holi>stea. 

 Trifolium fragiferum. 

 Lysimachia nemorum. 

 Alisma Plantago. 

 Lotus major. 

 Senecio aquaticus. 

 Alnus glutinosa. 

 Eanunculus Flammula. 

 Alsine tenuifolia. 

 Hypericum humifusum. 

 H. pulchrum. 

 Ly thrum Hyssopifolia. 



Ononis spinosa. 

 Melilotus vulgaris. 

 Herniaria glabra. 

 H. hirsuta. 

 Saxifraga granulata. 

 Scandix Pecten. 

 Centaurea Calcitrapa. 

 Arnoseris pusilla. 

 Thrincia hirta. 

 Xanthium Strumarium. 

 Myosotis versicolor. 

 Verbascum Blattaria. 

 Digitalis purpurea. 

 Antirrhinum Orontium. 

 Eumex acetosella. 

 Amaranthus retroflexus. 

 Salix viminalis. 

 Populus nigra. 

 Betula alba. 

 Cyperus fuscus. 

 Scirpus setaceus. 

 Osmunda regalis. 



the following in Middlesex : — 



Lonicera Periclymeniim. 

 Tussilago Farfara. 

 Bidens cernua. 

 Pulicaria vulgaris. 

 Specularia hybrida. 

 Veronica scutellata. 

 Chlora perfoliata. 

 Centunculus minimus. 

 Salix aurita. 

 Luzula multiflora. 

 Eleocharis acieularis. 

 Triodia decumbens. 



Of the lists of Thurmann's '■ psttmmojpMles ' and 'pelopJdIes ' respectively 



Great Britain has, per cent. 

 Middlesex „ 



Ps. 

 71-95 

 53-65 



Pel. 

 69-23 

 61-53 



showing that our county is a district especially rich in pelophilous species, 

 as indeed would be expected from its geological features. 



