Vlll 
Index. 
PAGE 
Parr, Rosalie. —The Response of Pilobolus to Light. With four Figures in the Text . .177 
Rivett, M. F.—The Structure of the Cytoplasm in the Cells of Alicularia scalaris, Cord. 
With Plate VI and three Figures in the Text.207 
Sahni, Birbal. — On the Branching of the Zygopteridean Leaf, and its Relation to the probable 
‘ Pinna’ Nature of Gyropteris sinuosa, Goeppert. With three Figures in the Text . 369 
Sargent, Oswald H.—Fragments of the Flower Biology of Westralian Plants . . *215 
Saunders, L. M., see Paine, S. G. 
Scott, D. H.—The Structure of Mesoxylon multirame. With Plates XI-XIV and two 
Figures in the Text..437 
Sharples, A. — The Laticiferous System of Hevea brasiliensis and its Protective Function . 247 
Smith, Gilbert Morgan. —Cytological Studies in the Protococcales. III. Cell Structure 
and Autospore Formation in Tetraedron minimum (A. Br.), Hansg. With Plate XV 459 
Thompson, W. P., see Bailey, I. W. 
Watson, W.—Sphagna, their Habitats, Adaptations, and Associates. With five Figures in 
the Text ..535 
Weston, William H.— The Development of Thraustotheca, a Peculiar Water-Mould. With 
Plates IV and V and two Figures in the Text.155 
Williams, Maud. —Absorption of Gold from Colloidal Solutions by Fungi . . . . 531 
-The Influence of Immersion in Certain Electrolytic Solutions upon 
Permeability of Plant Cells. With two Figures in the Text.591 
Willis, J. C. —-The Sources and Distribution of the New Zealand Flora, with a Reply to 
Criticism. With seven Figures and Map in the Text.339 
a . Plates. I. 
II, III. 
IV, V. 
VI. 
VII. 
VIII, IX. 
X. 
XI-XIV. 
XV. 
XVI. 
XVII, XVIII. 
B. LIST OF ILLUSTRATIONS. 
Chondriosomes, &c. (Mottier). 
Phytophthora (Murphy). 
The Development of Thraustotheca, a Peculiar Water-Mould (Weston). 
Alicularia (Rivett). 
Oenothera (Ishikawa). 
Hepaticae (Campbell). 
Preissia (M. Graham). 
Mesoxylon (Scott). 
Cytology of Tetraedron minimum (Smith). 
Trochodendron, Tetracentron, and Drimys (Bailey and Thompson). 
Mazocarpon (Benson). 
b . Figures. i. Transverse section of the stele of an adult axis of Schizaea rupestris, 
showing continuous xylem round a central parenchymatous pith 
(Bower).3 
2. Ditto, at a point of departure of a leaf-trace upwards, and of a root- 
trace directed to the left (Bower).3 
3. i-iv. Successive transverse sections from the axis of a young plant of 
Anemia phyllitidis (Bower) ....... 5 
4. a, b. Young leaves of Schizaea rupestris, showing circinate vernation, 
with the pinnae reflexed to the convex (abaxial) side (Bower) . 6 
5. i-viii. Transverse sections of very young pinnae of Schizaea rupestris, 
showing the marginal origin of the sporangia, which are very soon 
turned towards the lower (abaxial) surface (Bower) ... 6 
6. a , b . Transverse sections of older pinnae, with sporangia and indusia 
more advanced (Bower) ........ 7 
7. Transverse section of the rachis and longitudinal of the bases of two 
pinnae .of Schizaea rupestris (Bower).8 
