INDEX, 
A. ORIGINAL PAPERS AND NOTES. 
PAGE 
Allen, C. E. — Nuclear Division in the Pollen Mother-cells of Lilium canadense. With 
Plates VI-IX 189 
Andrews, F. M. — The Effect of Gases on Nuclear Division. With a Figure in the Text . 521 
Arber, E. A. N. — On some Species of Lagenostoma : a Type of Pteridospermous Seed from 
the Coal-measures. (Abstract.) .......... 326 
Berridge, Miss E. M. — On two New Specimens of Spencerites insignis. With Plates XI 
and XII, and three Figures in the Text . . . . . . . . *273 
Blackman, F. F. — Optima and Limiting Factors. With two Diagrams in the Text . .281 
Blackman, V. H., and Fraser, Miss H. C. 1 . — Fertilization in Sphaerotheca . . . 567 
Buller, A. H. R. — The Reactions of the Fruit-bodies of Lentinus lepideus, Fr., to External 
Stimuli. With Plates XXIII-XXV 427 
Campbell, D. H. — Studies on the Araceae. III. With Plates XIV-XVII . . . *329 
Chandler, S. E. — On the Arrangement of the Vascular Strands in the * Seedlings ’ of certain 
Leptosporangiate Ferns. With Plates XVIII-XX 365 
Czapek, F. — The Anti-ferment Reaction in Tropistic Movements of Plants .... 75 
Eriksson, J. — On the Vegetative Life of some Uredineae 55 
Ewart, A. J. — The Resistance to Flow in Wood Vessels. With three Figures in the Text . 442 
Fraser, Miss H. C. I. See Blackman, V. H. 
Fritsch, F. E. — Algological Notes. No. 6 : The Plankton of some English Rivers . . 163 
Gwynne-Vaughan, D. T. — On the Anatomy of Archangiopteris Henryi and other Marat- 
tiaceae. With Plate X *259 
Lang, W. H. — On the Morphology of Cyathodium. With Plates XXI and XXII . .411 
Leake, H. M. — The Localization of the Indigo-producing Substance in Indigo-yielding 
Plants. With Plate XIII 297 
Lulham, Miss R. B. J., see Tansley, A. G. 
Maslen, A. J. — The Relation of Root to Stem in Calamites. With Plates I and II, and 
a Figure in the Text 61 
Massee, G. — On the Presence of Binucleate Cells in the Ascomycetes. With a Figure in 
the Text 325 
Mottier, D. M. — The Embryology of some Anomalous Dicotyledons. With Plates XXVI 
and XXVII 447 
Newcombe, F. C. — Geotropic Response at Various Angles of Inclination . . . -311 
Parkin, J. — On a brilliant Pigment appearing after Injury in Species of Jacobinia (N. O. 
Acanthaceae). (Abstract.) 167 
Peirce, G. J. — The Dissemination and Germination of Arceuthobium occidentale, Engl. 
With Plates III and IV . . . . 99 
Pertz, Miss D. F. M. — The Position of Maximum Geotropic Stimulation .... 569 
Ridley, H. N. — On the Dispersal of Seeds by Wind 351 
Robertson, Miss A., see Sargant, Miss E. 
Salmon, E. S. — Further Cultural Experiments with ‘ Biologic Forms’ of the Erysiphaceae . 125 
On Endophytic Adaptation shown by Erysiphe graminis, DC., under Cultural 
Conditions. (Abstract.) 444 
Sargant, Miss E., and Robertson, Miss A. — The Anatomy of the Scutellum in Zea Ma'is. 
With Plate V 115 
