PAGE 
CONTENTS. 
Lawson, A. A. — The Gametophytes and Embryo of Pseudotsuga 
Douglasii. With Plates XII, XIII, and XIV .... 163 
Harvey, H. W. — The Action of Poisons upon Chlamydomonas and 
other vegetable Cells. With two Figures in the Text . . 181 
Hill, T. G., and DE Fraine, E. — On the Seedling Structure of 
Gymnosperms. II. With Plate XV, and eleven Figures in the 
Text 189 
Salisbury, E. J.— The Extra-floral Nectaries of the Genus Poly- 
gonum. With Plate XVI, and six Figures in the Text . . 229 
Massee, G. — The Structure and Affinities of British Tuberaceae. 
With Plate XVII 243 
Sargent, O. H. — Notes on the Life-History of Pterostylis. With 
Plates XVIII and XIX 265 
Yapp, R. H. — On Stratification in the Vegetation of a Marsh, and its 
Relations to Evaporation and Temperature. With Plate XX, 
and eight Figures in the Text 275 
Shaw, F. J. F. — The Seedling Structure of Araucaria Bidwillii. With 
Plate XXI, and six Diagrams in the Text . . . .321 
NOTES. 
Massee, G. — On a new Genus of Ascomycetes. With three Figures 
in the Text 335 
Kershaw, E. M. — Note on the Relationship of the Julianiaceae. 
With two Figures in the Text 336 
Ridley, H. N. Branching Palms 337 
Chandler, B.— Note on Utricularia emarginata, Beni. With Plate 
XXII ..339 
Sykes, M. G. — On the Nuclei of some Unisexual Plants . . . 340 
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