195 
Notices of Books . 
the chemistry of protoplasm, and has indicated methods by which our 
knowledge may be extended and confirmed. To those who are 
especially interested in this subject the paper cannot be too highly 
recommended. 
S. H. V. 
MONOGRAPHIAE PHANEROGAM ARUM, PRODROMI 
NUNC CONTINUATIO, NUNC REVISXO, editoribus 
et pro part© auctoribus Alphonso et Casimir D© 
Candolle. Vol. quintum, pars secunda : AMPELIDEAE, 
auctore J. E. Planchon. Parisiis sumptibus G. Masson. Julio, 
MDCCCLXXXVII. 
This is another of those valuable monographs supplemental to* 
the Prodromus which are being issued from Geneva through the 
munificence and under the supervision of the De Candolles, father 
and son. The fifteenth family which has been thus presented, it forms 
a goodly part of 350 pages, completing the fifth volume of the 
series. The Ampelideae appeared in the first volume of the Prodromus 
issued by Auguste Pyrame de Candolle in 1824, and their description 
occupies exactly ten pages of the volume; in 1887 their treatment, 
even when one group is excluded, requires 313 pages. Difference in 
method of exposition of course accounts for some of the additional 
space required, and a better comparison to bring out the enormous 
increase in our knowledge of the group during the century is to be 
found in the number of species recorded in the two monographs ; in 
the Prodromus there are 108, in the new volume 390 are pronounced 
certain ; and there are a number of species ‘ non satis notae ’ as well. 
The monograph does not include the forms belonging to Leea 
which are usually incorporated in the Ampelideae, and M. Planchon 
explains : ‘C’est a dessein que je laisse a part les Leea qui forment une 
section tres sp^ciale, si non une famille a part, et qui viennent d’etre 
^tudiees monographiquement par M. J.-B. Clarke, dans le Journal of 
Botany, new series, vol. x. (1881)/ In dealing with the other forms 
the author differs considerably from preceding writers in his method 
of generic grouping. Bentham and Hooker (Genera Plantarum, i. 
387) have been content to place the 230 odd species known to them 
in two genera, Vitis and Pterisanthes , the former including the other 
well-known genera Cissus and A mpelopsis, and being almost co-extensive 
