152 THE JOURNAL OF BOTANY 



Britten, =S. Cucubalus Wibel for those who exclude the narrow 

 leaved southern plant) occupies twenty pages. Part 101 (30 Dec. 

 L920) contains S. maritima (E. J. Salisbury's flower forms are 

 noted, with others) ; S. conica (little variable) and S. gallica (in- 

 cluding anglica and quinquevulnera). The Synopsis does not recog- 

 nize the Internationa] Rules of Nomenclature as binding, preferring 

 to continue as it began. The use of such terms as lusus (indicated 

 by "1.") and monstrositas ("m. "), the inclusion of such forms 

 among the more normal variations, and the mention of artificial 

 hybrids made by Gaertner &c. (e.g. Melandryum rubrumxJU. noc- 

 tiflorvm andx Goronaria Floscuculi, Silene venosax maritima'), all 

 commend themselves to students of variation, but the impression 

 is left that we are still dealing with an unassorted compilation of 

 names rather than with an attempt to give a modern view of the 

 variation within the species. This latter is left to the reader, but 

 one feels that some of the Jordanian so-called " microspecies " so 

 slavishly perpetuated in Rouy and Foucaud's Flora de France 

 might be allowed to remain buried unless they had shown some of 

 the usual signs of life. Middle Europe seems to be an elastic term 

 which includes the Balkan Peninsula at least as far as Thessaly, 

 Podolia in Russia, Sweden and Finland. The use of square brackets 

 for forms which do not occur in Middle Europe would be useful. — 



A. J. W. 



The Journal of Ecology (Pec. 1920, issued Feb. 9) contains 

 papers on " The Aquatic Vegetation of the English Lakes." by \V. 

 11. Pearsall; "The Significance of the Calcicolous Habit," by E. J. 

 Salisbury; " Changes in the Salt Marsh and Sand Dunes of Norfolk," 

 by S. M. Wadham; "Notes on the Habitats and Ecological Charac- 

 ters of three subvarieties of Frsl/tca rubra" by W. 0. Howarth. 

 The subvarieties are grandiflora and ' glaucescens of Hackel, and 

 tenuifolia, described by the author in his previous paper (1919) ; the 

 observations were made on the coast of Glamorgan. 



The New Pliytologist (xx. no. 1 : March 2-1) contains papers on 

 "Carbohydrate Production in the Higher Plants,'" by F. F. Black- 

 man; "Heterothallism and Similar Phenomena," by E. M. Cut- 

 ting; " Suberin and Cutin." by J. H. Priestley; "The Theory of 

 Geotropic Besponse," by V. H. Blackmail. Mr. Francis Darwin 

 continues his "Studies in Phamology " for 1020; the observations, 

 as those for 1917-19, with which they are compared, were chiefly 

 made at Brookthorpe in Gloucestershire, but some in Cambridgeshire 

 and near Gomshall, Surrey. 



The Botanical Gazelle (Chicago) for February contains papers 

 (with figures) on the "Development of Head and Flower of Dipsacus 

 sylvestris" by Hilary S. Jurica, and " A Chemical and Physiological 

 Study of the Mottling of Leaves," by F. M. Schertz. 



We greatly regret to announce the death of Mr. \\. A. Ivolfe, 

 which occurred at his residence at Kew on April 13, after a long 

 illness : Ave hope to publish some account of his work in our next 

 issue. 



