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viii

CONTENTS.

PART II.

STRUCTURAL AND PHYSIOLOGICAL MEMOIRS.

	PAGE
Some Observations on the Parts of Fructification in Mosses; with Characters and Descriptions of two new Genera of that Order	343—355
On some remarkable Deviations from the usual structure of Seeds and Fruits	357—366
An Account of a new Genus of Plants, named Rafflesia	367—398
On the Female Flower and Fruit of Rafflesia Arnoldi and on Hydnora Africana	399—431
Character and Description of Kingia; a new Genus of Plants found on the South-west coast of New Holland. With Observations on the Structure of its Unimpregnated Ovulum, and on the Female Flower of Cycadeæ and Coniferæ	433—461
A Brief Account of Microscopical Observations made in the Months of June, July, and August, 1827, on the Particles contained in the Pollen of Plants; and on the General Existence of Active Molecules in Organic and Inorganic Bodies	463—486
Observations on the Organs and Mode of Fecundation in Orchideæ and Asclepiadeæ	487—543
Supplementary Observations on the Fecundation of Orchideæ and Asclepiadeæ	545—551
On the Relative Position of the Divisions of Stigma and Parietal Placentæ in the Compound Ovarium of Plants	553—563
On the Plurality and Development of the Embryos in the Seeds of Coniferæ	565—576
On the Origin and Mode of Propagation of the Gulf-Weed	577—582
Some Account of Triplosporite, an undescribed Fossil Fruit	583—591