407 
The changes of generic names in the ninth edition of the Lon- 
don Catalogue, from those used in the eighth edition, published 
in 1886, and which agree with the American catalogue, are as 
follows: 
Nymphaea 1.., 1753, for Nuphar Sibth. & Smith, 1808. 
Castalia Salisb., 1805, for Nymphaea J. E. Smith, 1806. 
Bursa Weber, 1780, for Capsella Medic., 1792. 
Coronopus Gaertn., 1791, for Senebiera DC., 1799. 
Schollera Roth, 1788, for Oxycoccus Pers., 1805. 
Pueumania Hill, 1762, for Mertensia Roth, 1797.* 
Homatocenchrus Mieg., 1768, for Leersia Sw., 1788. 
Weingaertneria Bernh., 1800, for Corynephorus Beauv., 1812. 
Steglingia Bernh., 1800, for Ziiodia Beauv., 1812. 
It would appear, from a consideration of these comparisons, that 
the British botanists were, after all that has been said, gradually 
coming to recognize the validity of the principle of priority, in at 
least generic nomenclature. There also appears to be no good 
feason why this process should not continue, so that by the time 
of the issue of the tenth edition of their useful list the percentage 
of difference might be reduced to 2 per cent. or perhaps less. 
For, if the recognition of this principle had been complete, and 
the 1753 « starting-point” had been accepted, not more than six 
of the genera would have borne different names. Noi, S : 
Among Rhode Island Wild Flowers. By W. Whitman Bailey. 
Providence, R. I. Preston and Rounds. 1895. Cloth. 16 mo. 
Pp. 105. 
Under the above title, Prof. Bailey has grouped a number of 
chapters which we may well designate as bits of floral poetry, 
Written in prose. The author does not attempt to give a list of 
Rhode Island plants, but to call attention to the fact that the 
flowers of the State are of surpassing beauty and interest. Rhode 
Island lies on the line dividing our northern and southern floras, 
and hence contains many interesting forms. Does 
After an introduction, we have a scheme of plant distribution, 
showing the wide variation of plant life, in plants of the salt water, 
the salt marsh, the river, the sea beach, the bog, the forest and the 
* The American publication maintains Pneumaria and Mertensia as distinct 
enera, 
