Nouv.

Bulletin des Sc.

tome 3 pages 73, 85 et 121.) In 1814 I adopted this view, as far, at least, as regards the manner of impregnation, and stated some facts in support of it.* But on reconsidering the subject, in connexion with what I had ascertained respecting the vegetable ovulum, I soon after altogether abandoned this opinion, without, however, venturing explicitly to state that now advanced, and which had then suggested itself.** (*Footnote.

Flinders Voyage 2 572.) (**Footnote.

Tuckey Congo page 454 et Linnean Society Transactions volume 13 page 213.) It is well known that the late M.Richard had prepared a very valuable memoir on these two families of plants; and he appears, from some observations lately published by his son, M.Achille Richard,* to have formed an opinion respecting their structure somewhat different from that of M.Mirbel, whose cupula is, according to him, the perianthium, more or less cohering with the included pistillum.