74 SCIENTIFIC SURVEY OF NOTTINGHAM AND DISTRICT 



*Vaccinium vitis-idaea L. 

 „ myrtillus L. 



Oxycoccus quadripetala Gilib. 



Calluna vulgaris Hull. 



Erica tetralix L. 

 „ cinerea L. 

 *Monotropa hypopitys L. 



Lycopsis arvensis L. 



Myosotis collina Hoffm. 

 „ versicolor Sm. 



Echium vulgare L. 



Verbascum nigrum L. 



Digitalis purpurea L. 



Melampyrum pratense L. 



Teucrium scorodonia L. 



Plantago coronopus L. 



Scleranthus annuus L. 



Rumex acetosella L. 

 *Empetrum nigrum L. 



Juncus squarrosus L. 

 Luzula multiflora DC. 

 *Scirpus maritimus L. 

 Carex paniculata L. 



„ canescens Lightf. 



„ leporina L. 



„ pilulifera L. 

 Apera spica-venti Beauv. 

 Aira caryophyllea L. 

 Deschampsia flexuosa Trin. 

 Molinia coerulea Moench. 

 Nardus stricta L. 

 Pteris aquilina L. 

 *Lastrea thelypteris Bory 



* „ cristata Presl. 

 *Lycopodium selago L. 



* „ inundatum L. 



* „ clavatum L. 



District III 



The Keuper deposits which underlie this extensive district are separable 

 into two divisions. The lower of these, known as the ' Waterstones ', 

 consists of alternations of dull red marl and light-coloured greenish-grey 

 sandstone; where the latter predominates the resulting soil is sufficiently 

 sandy to suit many of the plants characteristic of District II, and we 

 therefore find along the outcrop of the Lower Keuper an assemblage of 

 species transitional in character between the flora of the Bunter and that 

 of the upper beds of the Keuper. The upper division or Keuper Marl 

 is a stiff bright-red clay with an occasional thin band of hard whitish or 

 yellowish sandstone. The heavy somewhat calcareous clay soil supports 

 a flora very different from that of District II, but more nearly approxi- 

 mating to that of District I, with which it has a large number of species 

 in common. Among the more prominent plants that occur with about 

 equal frequency in Districts I and III, but are almost or entirely absent 

 from Districts II and IV, are Anemone nemorosa, Euonymus europaeus, 

 Pimpinella major, Asperula odorata, Lactuca muralis. Campanula lati- 

 folia, Lysimachia nemorum, Erythraea centaurium, Veronica montana, 

 Lamium galeobdolon, Mercurialis perennis, Allium ursinum, Paris quadri- 

 folia, Carex pendula, C. sylvatica. Milium effusum and Melica uniflora. 

 Several rare or uncommon Nottinghamshire species are confined to Dis- 

 trict III ; of such are Ranunculus sardous and R. parviflorus. Vicia sylva- 

 tica, Lathyrus sylvestris, Dipsacus pilosus, Carduus tenuiflorus, Campanula 

 patula, Mentha pulegium, Carex gracilis, C. pallescens, etc.; while among 

 commoner species which are most abundant in, but not absolutely confined 

 to, the District are Geranium pratense, Bidens tripartita, Tanacetum 

 vulgare, Picris hieracioides, Epipactis latifolia, Platanthera chlorantha, etc. 



A number of plants which have their headquarters in the Trent valley, 

 which lies almost wholly in this District, owe their presence rather to 

 their fondness for a moist or watery situation than to the chemical or 



