INDEX 



New taxa. names and combinations are given in heavy type 



Allen, D. E., Variation in Peplis portula L., 85 

 Alnus glutinosa (L.) Gaertn., regional variation in 

 Britain, 26 



Arctic Plants Not Yet Found in Britain, by 



Nicholas Polunin, 34 

 Arctic, vascular plants common to, and British 



Isles, 92 



Arum maculatum L., variation in, 181 



vegetative reproduction, 175 



Baker, H. G., Geranium purpureum Vill. and 



G. robertianum L. in the British Flora, 160, 270 

 Barling, D. M. Tragopogon pratensis in the Central 



Cotswolds, 210 

 Biosystematic Study of Some Glycerin Species in 



Britain, by Martin Borrill, 291, 299 

 Book reviews, 127, 179, 282, 327 

 Borrill, Martin, A Biosystematic Study of Some 



Glyceria Species in Britain, 291, 299 

 Callitriche autumnalis, 186 



hermaphroditica, 186 

 intermedia, 186 

 Callitriche, notes on the identification of some 



British species, by Herbert Jones, 186 

 Callitriche obtusangula, 186 



stagnalis, 186 

 Cardamine pratensis L., chromosome races, 170 

 Carex demissa, 129 



Carex flava and its Allies, Notes on, by Elizabeth 



W. Davies, 66, 70, 74, 80 

 Carex flava, 129 



lepidocarpa 70, 129 

 subsp. scotica, 71. 

 pulchella 66 

 scandinavica 

 serotina, 66, 129 

 Cerastium atrovirens, 213, 324 

 pumilum, 213 

 semidecandrum, 213 

 subtetrandrum, 324 

 Cerastium, taxonomic studies by F. H. Whitehead, 

 213, 324 



Chromosome Counts in the European Cistaceae, 



by M. C. F. Proctor, 154 

 Chromosome Numbers in Cyperaceae, 242 

 Chromosome Numbers of the British Menthae, 



by J. K. Morton, 244 

 Chromosome Races in Cardamine pratensis in the 



British Isles, by F. Hussein, 170 

 Cicumpolar arctic flora, 92 

 Cistaceae, chromosome counts, 154 

 Cline, east-west, 89 



Comparative Study of Diploid and Tetraploid 



Spores of Dryopteris dilatata from Britian and 



Europe, by Fern Ward Crane, 168 

 Cotswolds, Tragopogon pratensis in, 210 

 Crane, Fern Ward, Comparative Study of Diploid 



and Tetraploid Spores of Dryopteris dilatata 



from Britain and Europe, 168 

 Cyperaceae, chromosome numbers, 242 

 Cystopus cubicus, 212 



Cytogenetics of Carex flava and its Allies, by 



Elizabeth W. Davies, 129 

 Cytogenetic Studies in the Dryopteris spinulosa 



Complex, I, by S. Walker, 193 

 Cytology of British Species of Euphrasia, by 



P. F. Yeo, 101 



Davies, Elizabeth W., Carex lepidocarpa in the 

 British Isles, 70 



Cytogenetics of Carex flava and 



its Allies, 129 

 Notes on Carex flava and its 



Allies, 66, 70, 74. 80. 

 Some New Chromosome Num- 

 bers in the Cyperaceae, 242. 

 Deschampsiae, viviparous, 50 

 Diapensia lapponica L., 34 



Distribution of Dryopteris borreri Newm. in the 



British Isles, by J. P. Pugh, 57 

 Dryas octopetala, 38 



Dryopteris borreri Newm., distribution in British 



Isles, 57 

 Dryopteris cristata, 193 



dilatata, 168, 193 

 spinulosa, cytogenetic studies, 193 

 X uliginosa, 193 



Elms, East Anglian, 138 

 Endemism, in Euphrasia, 107 



Epipogium aphyllum Sw. in Buckinghamshire, by 



R. A. Graham, 33 

 Euphrasia, cytology of British species, 101 

 Euphrasia, hybridisation between diploid and 



tetraploid species, 253 



Festuca ovina L., 42 

 vivipara, 44 

 Flowering plants, generic criteria, 317 

 Fumana, chromosome counts, 157 



Generic Criteria in Flowering Plants, by T. G. 

 Tutin, 317 



Genus Symphytum in Britain, by T. G. Tutin, 280 

 Geranium purpureum Vill. and G. robertianum L. 



in the British Flora, by H. G. Baker, 160, 270 

 Geranium purpureum, 160 



purpureum, subsp. forstcri, 165 

 robertianum, 270 



robertianum subsp. maritimum, 272 



Glyceria, biosystematic study, 291, 299 



Graham, R. A., Epipogium aphyllum, Sw. in 



Buckinghamshire, 33 

 Mint Notes, 109 

 Grasses, proliferation of spikelets, 41 

 Green, P. S., Stellaria nemorum L. subsp. glochidis- 



perma Murbeck in Britain, 122 



Halimium, chromosome counts, 157 

 Harley, R. M., Rubus arcticus L., in Britain, 237 

 Helianthemum, chromosome counts, 157 

 Heslop-Harrison, Yolande, Nuphar intermedia 



Ledeb., 7 

 Hieracia, notes on British, 233 

 Hieracium acamptum, 236 



angustatiforme, 235 



asteridiophyllum, 233 



camptopetalum, 233 



diccUa, 233 



glcvensc, 234 



gratum, 236 



hartii, 233 



radyrensc, 236 



salticola, 236 



saxorum, 233 



snowdoniense, 234 



stenolepiformc, 233 



subbritannicum, 233 



uistense, 233 



vinicaule, 236 



329 



