CONTENTS. 
PAGE 
Harper, R. A.—Sexual Reproduction in Pyronema confluens and the 
Morphology of the Ascocarp. (With Plates XIX-XXI) 
Ito, T.—A Short Memoir of Ito Keisuke, Rigaku Hakushi (Doctor 
of Philosophy). (With a Portrait, Plate XXII) . 
Scott, D. H. and Hill, T. G.—The Structure of Isoetes Hystrix. 
(With Plates XXIII and XXIV, and two Figures in the 
Text) .. 
Boodle, L. A.—Comparative Anatomy of the Hymenophyllaceae, 
Schizaeaceae and Gleicheniaceae. I. On the Anatomy 
of the Hymenophyllaceae. (With Plates XXV-XXVII) 
Shove, Miss R. F.—On the Structure of the Stem of Angiopteris 
evecta. (With Plates XXVIII and XXIX) . 
Thomas, Miss E. N.—Double Fertilization in a Dicotyledon—Caltha 
palustris. (With Plate XXX) » 
NOTES. 
321 
401 
413 
455 
497 
527 
Brown, H. T., and Escombe, F.—Static Diffusion of Gases and 
Liquids in Relation to the Assimilation of Carbon and 
Translocation in Plants ....... 537 
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