Littorella. PLANTAGINACEJ3. 392 1 



P. m^dia, L., enumerated by Muhlenberg as of the United States, has once been found by 

 Underwood, in the streets of Syracuse, New York. 



P. Coe6nopus, L., is a rare and fugitive ballast plant. 



2. LITTOR^LiIjA, L. (Litus or littus, shore, from place of growth.) — 

 Flowers monoecious ; the male solitary on a mostly simple naked scape : calyx 

 4-parted, membranaceous, longer than the cylindraceous 4-cleft corolla ; stamens 

 exserted on very long capillary filaments. Female flowers usually 2, sessile at 

 base of scape ; calyx of 3 or 4 unequal sepals : corolla urceolate, with a 3-4- 

 toothed orifice. Ovary with a single cell and ovule, tipped with a long laterally 

 stigmatic rigid style, maturing as an akene. Single species. 



L. lacustris, L. Stoloniferous but otherwise stemless little perennial : leaves terete, linear- 

 subulate, an inch or two long. — In water on gravelly shores, Upper Canada, Macoun, Lake 

 Champlain, Vermont, Pringle, Nova Scotia, Mrs. Britton, and Lake Utopia, St. George, New 

 Brunswick, J. Vroom. All recent discoveries. (Eu., Antarc. Amer.) 



