THE DISTRIBUTION OF EAST RIDING 

 PLANTS. 



EACH of the three main divisions described in the 

 preceding pages comprises two or more sub-divisions, 

 having their peculiar groups or associations of plants, 

 which vary with local conditions. Lists of the members 

 of the associations as observed in the East Riding will 

 give a fairly clear and comprehensive view of the plant 

 distribution of the vice county. 



I. The Sea Coast has at least three areas, each with 

 its own group, viz : — 



[a) The Boulder Clay Cliffs of Filey and Bridlington 

 Bays, 



{b) The Chalk Cliffs of Flamborough Head, and 



(c) The Sand and Dunes (of no great extent) chiefly at 

 Spurn. 



In Group (a) the plants are conspicuously pelophiles 

 (clay-loving) with an apparent preference for the seaside, 

 and include Ranunculus hederaceus, R. sardous. Geranium 

 pusillum, Lotus corniculatus, vars. crassifolius and villosus, 

 Cichorium Intybus, Tussilago Farfara, Convolvulus arvensis, 

 Plantago coronopus, P. maritima, Rumex sanguineus, and 

 Equisetum maximum. Of course, many other pelophiles 

 are present on the Holderness Cliffs, but they will appear 

 in their fuller association under another sub-division. 



Group [b) has a number of xerophiles (dry-loving) such 

 as are usually found on calcareous soils, but with maritime 

 tendency, perhaps more correctly " halophytic " (salt plants), 



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