18 REVIEWS. 



bach; the Polcmoniacccv, by Bentham, and the Convolvula- 

 cece, by Choisy. The tenth volume will be occupied with the 

 Solanacece, by Dunal, and the Scrophularinece, by Bentham ; 

 in the elaboration of which orders, these two distinguished 

 botanists are now actively engaged. The first order in the 

 volume before us, the Lcntibulariece, is prepared by the edi- 

 tor. The North American species of Utricularia are dis- 

 tributed into three sections, namely: 1. Megacista, where 

 the verticillate foliage is floated by inflated petioles ; 2. Len- 

 tibularia, where the capillary segments of the submersed 

 foliage are utriculiferous ; and 3. Oligocista, where the 

 leaves are few, undivided, and disappear after flowering ; the 

 roots strike into the soil or mud, and generally bear the utri- 

 culi, when these are present. U. resupinata, discovered by 

 B. D. Greene, Esq., and first mentioned in the Massachusetts 

 Catalogue of Plants and Animals, 1835, is wrongly placed 

 by De Candolle among the yellow-flowered species of the 

 second section. It has purple flowers and should stand next 

 U. purpurea. The name U. Greenei, Oaks, in " Hovey's 

 Magazine " must stand as a synonym, as there is no good 

 reason for changing the prior name imposed by the discoverer. 

 The order of Primulacece is elaborated by M. Duby of 

 Geneva, who follows Endlicher in the general distribution of 

 the family. From some inadvertence, Glaux maritima is 

 not cited as an American plant. Naumburgia thyrsijlora, 

 Mcench, = Lysimachia thyrsiffora, Linn., and L. capitata, 

 Pursh. The L. revoluta, Nutt., is referred to L. longifolia, 

 Pursh. The common Samolus, of the southwestern United 

 States, which has smaller flowers than the true S. Valerandi, 

 is referred to S. florihundas, HBK. S. ebracteatus is not 

 noticed as a plant of the United States, although it is com- 

 mon along our southern borders, nor is it distinguished even 

 as a subgenus, although, on account of its nearly free ovary 

 and want of sterile filaments, a recent writer (M. Baudo, in 

 Ann. Sci. Nat., Dec. 1843) has separated it, to form his 

 genus Samodia. In the 31yrsi?iacece, elaborated by the 

 editor, we meet with two North American species, both 

 natives of Florida, namely, Myrsine Floridana, A. DC., 



