kfff- ' ■ ' 
Yol. XVII. No. LX VIII. September, 1903. Price 14s. 
Annals of Botany 
EDITED BY 
ISAAC BAYLEY BALFOUR, M.A., M.D., F.R.S. 
king’s BOTANIST in SCOTLAND, PROFESSOR OF BOTANY IN THE UNIVERSITY. 
AND KEEPER OF THE ROYAL BOTANIC GARDEN, EDINBURGH 
D. H. SCOTT, M.A., Ph.D, F.R.S. 
HONORARY KEEPER OF THE JODRELL LABORATORY, ROYAL BOTANIC GARDENS, KEW 
WILLIAM GILSON FARLOW, M.D. 
PROFESSOR OF CRYP.TOGAMIC BOTANY IN HARVARD UNIVERSITY, CAMBRIDGE, MASS., U.S.A-. 
ASSISTED BY OTHER BOTANISTS 
Uondott 
HENRY FROWDE, AMEN CORNER, E.C. 
CLARENDON PRESS DEPOSITORY, 116 HIGH STREET 
1903 
Printed by Horace Hart, at Ike Clarendon Press, Oxford . 
