CONTENTS. 
No. XCIII, January, 1910. 
PAGE 
Chrysler, M. A.—The Nature of the Fertile Spike in the Ophioglossaceae. With Plates I 
and II and sixteen Figures in the Text ......... i 
Mitchell, G.—Contributions towards a Knowledge of the Anatomy of the Genus Selaginella, 
Spr. Part V. The Strobilus. With Plates III and IV . . . . . .19 
Blomfield, J. E., and Schwartz, E. J.—Some Observations on the Tumours on Veronica 
Chamaed.rys caused by Sorosphaera Veronicae. With Plate V. .... 35 
Wager, H., and Peniston, A.—Cytological Observations on the Yeast Plant. With Plates 
VI-X and a Figure in the Text . ......... 45 
Ewart, A. J., and Rees, B.—Transpiration and the Ascent of Water in Trees under Australian 
Conditions. With five Figures in the Text ........ 85 
Sinnott, E. W.—Foliar Gaps in the Osmundaceae. With Plates XI and XII . . . 107 
Gerry, E.—The Distribution of the £ Bars of Sanio ’ in the Coniferales. With Plate XIII . 119 
de Fraine, E.—The Seedling Structure of certain Cactaceae. With eighteen Diagrams and 
nineteen Figures in the Text . . . . . . . . . . .125 
Drew, G. H.— The Reproduction and Early Development of Laminaria digitata and Laminaria 
saccharina. W A ith Plates XIV and XV . . . . . . . . . 1 77 
Farmer, J. B., andDiGBY, L.—On the Cytological Features exhibited by certain Varietal and 
Hybrid Ferns. With Plates XVI-XVIII.191 
Vines, S. H.—The Proteases of Plants (VII) ......... 213 
Thiselton-Dyer, Sir W. T.—Morphological Notes. XII. Germination of the Double 
Coco-nut. With Plates XIX and XX and a Figure in the Text .... 223 
NOTES. 
Stopes, M. C., and Fujii, K.—Studies on the Structure and Affinities of Cretaceous Plants. 
Abstract . . . . . . . . . . . . . . .231 
Georgevitch, P.—Preliminary Note on Apospory and Apogamy in Trichomanes Kaulfussii, 
HK. et Grew. With seven Figures in the Text . . . . . . *233 
Wilson, M. — Preliminary Note on the Spermatogenesis of Mnium hornum .... 235 
Schwartz, E. J.—A New Parasitic Disease of the Juncaceae (Preliminary Notice) . . 236 
Scott, D. H., and Maslen, A. J.—On Mesoxylon, a New Genus of Cordaitales (Preliminary 
Note) ............... 236 
No. XCIV, April, 1910. 
Groom, P.—Remarks on the Oecology of Coniferae ........ 241 
Evans, A. W.—Vegetative Reproduction in Metzgeria. With sixteen Figures in the Text . 271 
Brooks, F. T., and Stiles, W.—The Structure of Podocarpus spinulosus, (Smith) R.Br. With 
Plate XXI. 3°5 
Hill, T. G., and de Fraine, £.— On the Seedling Structure of Gymnosperms. IV. With 
Plates XXII and XXIII and three Figures in the Text . . . . . .319 
Wernham, H. F.—The Morphology of Phylloglossum Drummondii. With eight Figures in 
the Text ........ ....... 
Cutting, E. M.—On Androgynous Receptacles in Marchantia. V 7 ithfive Figures in the Text 
335 
349 
