INTRODUCTION. XIX. 
on the west Magdalen’s lovely pile, it meets the Isis or upper 
Thames in classic ground at Oxford. 
About Upper Heyford occur Genista tinctoria, Geum rivale, 
Dipsacus pilosus, Trifolium medium, the first and last being 
especially fine on the railway banks from Upper Heyford to 
Tackley ; the marshy meadows yield Cardamine amara, Geum. 
rivale, Parnassia, Valeriana dioica, Menyanthes, Pedicularis 
palustris, Rumex maximus? Triglochlin, Orchis latifolia, Erio- 
phorum angustifolium, Carew ampullacea, C. paniculata, etc. 
The higher ground on the Oolite supplying Geraniwm lucidum, 
Anthyllis, Hippocrepis, Spirea Filipendula, Rosa sepium, Petro- 
selinum segetum, Carlina, Picris, Melampyrum pratense, Origa- 
num, Calamintha Acinos, Nepeta Cataria, Orchis pyramidalis, 
Ceterach, Juniperus. 
About Middleton Stoney is the classic locality for Salvia 
pratensis. On an outlier of the Oolite in the Cornbrash near 
Middleton occur Cephalanthera pallens and Monotropa. The 
quarries near Kirtlington Station have, in addition to many 
of the plants enumerated above, Z'rifolium subterranewm. The 
railway cutting near has Ophrys apifera, Scolopendrium, etc. 
Near Tackley Narcissus poeticus, N. biflorus, N. major, N. 
Pseudo narcissus, Orobus tuberosus, Rosa spinosissima, occur. 
Kirtlington and Weston peat-pits yield Salvia pratensis, 
Schenus nigricans, Menyanthes, Parnassia, Epipactis palustris, 
Molinia, Orchis latifolia. 
Otmoor has for its special plants a profusion of Polygonum 
maculatum, Ginanthe Phellandrium, Stellaria palustris, Mala- 
chium aquaticum, Atriplex deltoidea, Polygonum minus ; its 
more uncommon plants, relics of an older flora, being Rumex 
palustris, R. maritimus, Samolus, Pulicaria vulgaris, Juncus 
compressus, Carex vesicaria, Utricularia vulgaris, Hydrocharis, 
Veronica scutellata, etc. Others less typical of a marshy tract, 
and some owing ‘their occurrence to the inliers of Cornbrash, 
are Rosa decipiens, R. andegavensis, R. bibracteata, Anthemis 
nobilis, Epilobium tetragonum, Daphne laureola, Ribes sylvestre, 
Carex pilulifera, Bidens tripartita, Lactuca virosa, Verbena, 
Mentha subglabra, Chenopodium polyspermum, Typha angusti- 
folia, Habenaria viridis, Ophioglossum vulgatum, Geum rivale, 
Carex strigosa? Narcissus Pseudo naretssus, etc. Beckley 
