CONTENTS. 
PAGE 
Mottier, D, M.— On the Prophases of the Heterotypic Mitosis in the 
Embryo-sac Mother-cell of Lilium. With Plate XXIII . . 343 
Kershaw, E. M.— The Structure and Development of the Ovule of 
Myrica Gale. With Plate XXIV, and two Figures in the Text 353 
Stephens, E. L. — The Embryo-Sac and Embryo of certain Penaeaceae. 
With Plates XXV and XXVI ....... 363 
WATSON, D. M. S.— On Mesostrobus, a New Genus of Lycopodiaceous 
Cones from the Lower Coal Measures, with a Note on the 
Systematic Position of Spencerites. With Plate XXVII, and 
six Figures in the Text . . 379 
Cutting, E. M. — On the Sexuality and Development of the Ascocarp 
in Ascophanus carneus, Pers. With Plate XXVIII . . 399 
Boodle, L. A., and Hiley, W. E. — On the Vascular Structure of 
some Species of Gleichenia, With Plate XXIX, and three 
Figures in the Text 419 
Hill, T. G., and de Fraine, E. — On the Seedling Structure of 
Gymnosperms. III. With Plate XXX, and four Figures in 
the Text 433 
Wager, H. — The Perception of Light in Plants. With Plates 
XXXI and XXXII, and three Figures in the Text . . . 459 
Digby, L. — Observations on ‘Chromatin Bodies’ and their Relation 
to the Nucleolus in Galtonia candicans, Decsne. With Plates 
XXXIII and XXXIV 491 
Fischer, C. C. E. — On the Development of the Fructification of 
Armillaria mucida, Schrad. With Plate XXXV . . . 503 
Berridge, E. M.— Fertilization in Ephedra altissima. With Plate 
XXXVI 509 
NOTE. 
Arber, E. A. N., and Thomas, H. H. — A Note on the Structure of 
the Cortex of Sigillaria mamillaris, Brongn. . . . .513 
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