.NOTICE TO SUBSCRIBERS. 



Subscriptions for 1921 (22s. 6d. post-free) should be sent to Messrs. Taylor 

 and Francis, Red Lion Court, Fleet Street, E.C. 4, without delay. 



No. 705 



SEPTEMBER, 1921 



Vol. LIX 



THE 



JOURNAL OF BOTANY 



BRITISH AND FOREIGN 



EDITED D\" 



JAMES BRITTEN, K. C. S. G., F.L.S. 



LATE SENIOR ASSISTANT, DEPARTMENT OF BOTANY, BRITISH MUSEUM, 



CONT 



PAGli 



A New European Serapias. By 

 Colonel M. J. Godfert, F.L.S. 

 (Plate 560.) 241 



Alabastra Diversa. — Part XXXIV. 

 By Spencer Le M. Moore, B.Sc, 

 . F.L.S 244 



The Generic Name Scliizonotus. By 



T. A. Sprague, B.Sc, F.L.S. ... 249 



Arcyria virescens, sp. n. By G. Lis- 

 ter, F.L.S 252 



The Flowers of Tragopogon : their 

 Times of Opening and Shutting-. 

 By Miller Christy, F.L.S. ... 253 



The Inclo-Malayan Species of Jussisea. 

 By Henry N. Ridley, C.M.G., 

 F.B.S , 257 



E NTS 



PACK 



On Collecting Linear-leaved Aquatics. 



By W. H. Pearsall 260 



Elisia — an Overlooked Genus-Name. 



By A|B. Rendle, D.Sc., F.B.S. 261 



Short Notes : — Buscus aculeatus L. 

 — Impatiens glandulifera Royle 

 — A Correction 264 



Reviews : — 



Mutations and Evolution. By R. 

 Ruggles Gates, Ph.D., F.L.S. . 265 



British Wild Flowers in their Natu- 

 ral Haunts. Described by A. 

 R. Horwood 266 



The Genus Sedum 269 



Book-Notes, News, etc 272 



LONDON 



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