CONTENTS. 
PAGE 
Olive, Edgar W. — Sexual Cell Fusions and Vegetative Nuclear 
Divisions in the Rusts. With Plate XXII .... 331 
Kauffman, C. H. — A Contribution to the Physiology of the 
Saprolegniaceae, with special reference to the Variations of the 
Sexual Organs. With Plate XXIII 361 
Petch, T. — The Genus Endocalyx, Berkeley and Broome. With 
Plate XXIV 389 
McNicol, Mary.— On Cavity Parenchyma and Tyloses in Ferns. 
With Plate XXV and seven Figures in the Text . . .401 
Stoward, F. — On Endospermic Respiration in certain Seeds . -415 
Bruschi, Diana.— Researches on the Vitality and Self-digestion of 
the Endosperm of some Graminaceae . . . . . 449 
Fraser, H. C. I., and WELSFORD, E. J. Further Contributions to the 
Cytology of the Ascomycetes. With Plates XXVI and XXVII 
and a Figure in the Text .465 
Brooks, F. T.— Observations on the Biology of Botrytis cinerea. 
With four Figures in the Text . . . .... 479 
Arber, E. A. Newell, and Parkin, J.— Studies on the Evolution 
of the Angiosperms. The Relationship of the Angiosperms to 
the Gnetales. With three Figures in the Text .... 489 
Gwynne-Vaughan, D. T.— On the Real Nature of the Tracheae in 
the Ferns. With Plate XXVIII .517 
NOTES. 
Sykes, M. G. — Note on an Abnormality found in Psilotum triquetrum. 
With five Figures in the Text 525 
Worsdell, W. C. — Internal Phloem in Myristica. With two Figures 
in the Text 526 
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