NOTICE TO SUBSCRIBERS. 



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

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



No. 704 



AUGUST, 1921 



T H E 



Vo!. LIX 



JOURNAL OF BOTANY 



BRITISH AND FOREIGN 



EDITED Bl" 



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



LATE SENIOR ASSISTAN1', DEPARTMENT OF BOTANY, BRITISH MUSEUM. 



CONT 



PAG!'. I 



British Forms of Jdsione montana L. 



By H. W. Pugsley, B.A., F.L.S. 209 



The Lichen Life-Cycle. By A. H. 



Church (concluded) 216 



James Yates's Drawings of Cycads. 



By James Britten, F.L.S 221 



Notes on Jamaica Plants. By Wil- 

 liam Fawcett, B.Sc, and A. 

 B. Rendle, F.R.S 224 



Alabastra Diversa.-— Part XXXIV. 

 By Spencer Le M. Moore, B.Sc, 

 F.L.S 226 



The Vienna Code 233 



234 



E NTS 



Short Notes: — Orchis pradermisiaa 

 Druce and O.purpurella Stephen- 

 son — Hydrllla verticillata Casp. 

 — Glostershire Plants - Spar- 

 ganium august i folium Michx. 



Reviews : — 



A Text-book of Botany for Medical 

 and Pharmaceutical Students. 

 By James Small, D.Sc, F.L.S. 236 



The Elements of Vegetable His- 

 tology. By C. W. Ballard 236 



Germination in its Electrical Aspect. 

 By E. A. Baines 237 



Book-Notes, News, etc 238 



LONDON 



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