330 



INDEX 



Hussein, F., Chromosome Races in Cardamine 



pratensis in the British Isles, 170 

 Hybridisation between Diploid and Tetraploid 



species of Euphrasia, by P. F. Yeo, 253 

 Hypericum perforatum, 40 



Jones, Herbert, Notes on the Identification of 

 Some British Species of Callitriche, 186 



Koenigia islandica L., 34 



McVean, D. N., Regional Variation of Alnus 



glutinosa (L.) Gaertn. in Britain, 26 

 Mentha aquatica, 109 

 arvensis, 109 



chromosome numbers, 244 

 longifolia, 109 

 spicata, 109 

 Mint Notes, by R. A. Graham, 109 

 Montia fontana L., by S. M. Walters, 1 



subsp. chondrosperma, 4 



subsp. fontana, 4 



subsp. intermedia, 5 



subsp. variabilis, 5 

 lamprosperma, 1 

 limosa, 2 

 lusitanica, 2 

 minor, 1 

 rivularis, 1 

 verna, 2 



Morton, J. K., Studies on Ononis in Britain, 307 



The Chromosome Numbers of the 

 British Menthae, 244. 



New British Speices of Senecio, by Effie M. Rosser 

 228 



New Chromosome Numbers in the Cyperaceae, 



by Elizabeth W. Davies, 242 

 New Subspecies of Pedicularis sylvatica L., by 



D. A. Webb. 239 

 Nuphar intermedia Ledeb., a presumed relict 

 hybrid, in Britain, 7 

 lutea, 7 

 pumila, 7 



Ononis, studies on, in Britain, 307 

 Orchis fuchsii 87 



Pedicularis lusitanica , 239 

 palustris, 239 



sylvatica L., new subspecies of, 239 

 subsp. hibernica, 239 

 Peplis portula L., variation in, by D. E. Allen, 85 

 Perring, F. H., A 17th Century Contribution to 



the Scottish Flora, 36 

 Poa alpina var. vivipara, 48 

 bulbosa var. vivipara, 47 

 X jemtlandica, 48 

 Polunin, Nicholas, Arctic Plants Not Yet Found in 

 Britain, 34 



Vascular Plants Common to the 

 Arctic and the British Isles, 92 

 Prime, C. T., Variation in Arum maculatum, 181 



Vegetative Reproduction in Arum 

 maculatum, 175 

 Proctor, M. C. F., Some Chromosome Counts in 

 the European Cistaceae, 154 



Proliferation of Spikelets in British Grasses, by 



P. R. Wycherley, 41 

 Puccinellia maritima, 43 

 Puccinia hysterium, 212 



Pugh, J. P., The Distribution of Dryopteris horreri 

 Newm. in the British Isles, 57 



Regional Variation of Alnus glutinosa (L.) Gaertn. 



in Britain, by D. N. McVean, 26 

 Relict Hybrid in Britain, Nuphar intermedia 



Ledeb., 7 

 Reviews, see book" reviews 

 Richens, R. H., Studies on Ulmus, 138 

 Rubus L., new species and combinations, 285 

 ahenifolius, 288 



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

 arrheniiformis, 285 

 bertramii var. minor, 285 

 breconensis, 290 

 caesius L., 285 



var. denticulatus, 285 



var. grandis, 285 



var. pinnensis, 285 

 cambrensis, 286 

 chloocladus, 288 

 crespignyanus, 286 

 discerptus var. microphyilus, 288 

 eboracensis, 286 

 graciliflorens, 290 

 halsteadensis, 286 



insericatus subsp. newbouldianus, 289 



lapeyrousianus, 290 



ludensis, 286 



malacotrichus, 288 



muenteri var. robii, 287 



obesifolius, 287 



obscuriformis, 289 



ooliticus, 286 



poliodes, 287 



pseudadenanthus, 288 



pseudoplinthostylus, 289 



putneiensis, 289 



rubritinctus, 287 



septicola, 288 



sprengeliiflorus, 289 



subtercanens, 288 



trichodes, 289 



Scottish flora, 17th century contribution to, 36 

 Sedge new to the British Isles, 66 

 Sell, P. D., and West, C, Notes on British Hieracia, 

 I., 233 



Senecio, a new British speices, 228 



cambrensis, 228 

 Seventeenth Century Contribution to the Scottish 



Flora, by F. H. Perring, 36 

 Spikelets of grasses, proliferation, 41 

 Stellaria montana, 124 



nemorum subsp. glochidisperma in Britain, 

 by P. S. Green, 122. 

 Studies on Vlmus, by R. H. Richens, 138 

 Symphytum, genus in Britain, 280 



Taxonomic Studies in the Genus Cerastium, by 



F. H. Whitehead, 213, 324 

 Tetraploids, origins of in Euphrasia, 106 

 Tragopogon pratensis in the Central Cotswolds, 



by D. M. Barling, 210 

 Tuberaria, chromosome counts, 157 

 Tutin, T. G., Generic Criteria in Flowering 



Plants, 317 

 The Genus Symphytum in Britain, 280 



Ulmus stricta Lindl., 87 

 studies on, 138 



