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CONTENTS. 
No. LXV, January, 1903. 
Sargant, Miss E. — A Theory of the Origin of Monocotyledons, founded on 
the Structure of their Seedlings. With Plates I- VII, and ten 
Figures in the Text ......... 
Darwin, F., and Pertz, Miss D. F. M. — On the artificial Production of 
Rhythm in Plants. With a note on the position of maximum helio- 
tropic Stimulation. With four Figures in the Text 
Salmon, E. S. — A Monograph of the Genus Streptopogon, Wils. With 
Plates VIII, IX, and X 
Marloth, R. — Some recent Observations on the Biology of Roridula. With 
a Figure in the Text ......... 
Sprague, T. A. — On the Heteranthus Section of Cuphea (Lythraceae). With 
Plate XI 
Barker, B. T. P. — The Morphology and Development of the Ascocarp in 
Monascus. With Plates XII and XIII . . .... 
Vines, S. H. — Proteolytic Enzymes in Plants ...... 
NOTES. 
Hill, A. W. — Notes on the Histology of the Sieve-tubes of certain Angio- 
sperms ............ 
Crossland, C. — Note on the Dispersal of Mangrove Seedlings. With a 
Figure in the Text ......... 
Cavers, F.— Explosive Discharge of Antherozoids in Fegatella conica. With 
a Figure in the Text ......... 
Fritsch, F. E. — Algological Notes. IV. Remarks on the periodical 
Development of the Algae in the artificial Waters at Kew 
Bower, F. O. — Note on abnormal Plurality of Sporangia in Lycopodium 
rigidum, Gmel. With a Figure in the Text .... 
No. LXVI, March, 1903. 
Allen, C. E. — The Early Stages of Spindle-Formation in the Pollen-Mother- 
Cells of Larix. With Plates XIV and XV 
Willis, J. C., and Burkill, I. H. — Flowers and Insects in Great Britain. 
Part II. Observations on the Natural Orders Dipsaceae, Plumba- 
ginaceae, Compositae, Umbelliferae, and Cornaceae, made in the 
Clova Mountains .......... 
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