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No. 693 



SEPTEMBEE, 1920 



Vol. LVIII 



T H E 



JOURNAL OF BOTAiNY 



BEIIISH AND FOREIGN 



EDITED BY 



JAMES BB.ITTEN, K. C. S. G., F.L.S. 



LATE SENIOR ASSISTANT, DEPARTMENT OF BOTANY, BRITISH MUSEUM. 



CONT 



PAGE 



The Genus Epipactis in Britain. By 

 T. Stephenson, D.D,, and T. A. 

 Stephenson, M.Sc. (Plate 555.) 209 



The Lichen Symbiosis. 

 Church 



By A. H. 



213 



Alabastra Diversa. — Part XXXIII. 

 By Spencer Le M. Moore, 

 B.Sc., F.L.S 219 



Short Notes : — Scilla campanulata 



Ait. — Motiotropa Hypopitys 227 



ENTS 



PAGE 

 EeVIEWS : — 



On the Interpretation of Pheno- 

 mena of Phyllotaxis. By A. H. 

 Church, M.A. 228 



A Gtiide to the Identification of 

 our more useful Timbers, being 

 a Manual for the Use of Students 

 of Forestry. By Herbert Stone, 

 Lecturer in Forestry (Wood) 230 



Book-Notes, News, etc 230 



Supplement. — The Marine Algae of 

 Guernsey. By Lilian Lyle, 

 F.L.S. 



LONDON 



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