298 BOTANICAL INFORMATION. 



Among LythracecB, Hypohrichia (M. O. Curtis, mst., 1836,) 

 is the same with Ptilina aquatica, Nutt. mst., (1838.) — 

 Tthizophora Mangle^ the Mangrove-tree, is found in swamps 

 in Louisiana and Florida ; and Terminalia Catappa in South 

 Florida. 



The genus Epilobium extends to 14 species, and (JBnothera 

 to no less than 62. Gaura to 9; Stenosiphon (Spach.) be- 

 ing separated from it. Ludtvlgia has 15. Myriophyllum 

 receives Hylas of Bigelow {^Ptilophyllum^ Nutt.) and thus 

 reckons 7 species. Bartonia is united with Mentzelia ; so is 

 Trachyphyllum (Nutt.), and Acrolasia (Presl.) ; and thus 

 there are 12 species. Cevallia of Lagasca, {^Petalanthera 

 Nutt.,) is here first reduced to its proper natural order, viz. 

 Loasacece. 



Echinocystis (Torr. and Gr.) is a new genus, destined to 

 receive the Sicyos lobatOy Mx. 



Ribes, which begins the last (or 4th part) of vol. i. musters 

 28 species. The CactecB are 2 Mammiliarice, 1 Echinocactus, 

 1 Cereus ? and 5 Opuntiee. The Order Saxifrogacece, with 

 its suborders, Escalloniece, Hydrangece, and Philadelphece, is a 

 more interesting one ; and besides extending the North 

 American species of the genus Saxifraga to the number of 

 46, we have the new genus of Boykinia, Nutt., and its 2 

 species, the one from North Carolina, the other from the 

 Columbia. Heuchera has 15 species ; the H. Menziesiiis made 

 Tolmiea of Torrey and Gray, (not Hook, which is Cladotham- 

 nus, Bongard.) Tellima parvijlora. Hook., and T. Iietero- 

 phylla, H. and A.; and 3 new species constitute the genus 

 Lithophragma, Nutt., all natives of Nortli-west America. 

 Jamesia is a new genus of Hydrange.-v from the Platte, or 

 the Canadian river, near the Rocky mountains, gathered only 

 by Dr James. 



The IJmbelliferce include several genera previously unde- 

 scribed. Edosmia, Nutt., is substituted for Jtania, Hook, et 

 Am. : it being shown that these authors overlooked the vitta 

 m the fruit, from the absence of which they derive their 

 specific name. Neurophyllum longifolium is an entirely new 



