64 Professer Douglass and Dr. Torrey 
Pouyeynta. 
a parviflora Efrh. Willd. On Lake Superior. 
"Rubus cae B. canadensis Mx. Head of the Missis- 
si 
PE am rival rival z Shores of Lake Huron, May 30th. 
Potentilla anserina L. Near Detroit. 
pennsylvanica Mz. Willd. Willdenow and 
Geum agrimonoides Px. Pursh quote as a 
synonim of this plant the G. Pennsylvanica of Gmelius 
Flora Sibirica, 3. t. 34. f. 1, but the figure is altogether un- 
like our plant, and does not agree with Michaux’s descrip- 
tion of it. Willdenow however, remarks, ‘Planta sibirca 
majus est glabra sed foliorum florumque structura eadem ae 
in Americana”! Sp. pl. 2. p. 1099. 
POLYANDRIA, 
Monecynta. 
Actaea Americana Ph. 
a Win Shores of Lake Huron. 
Spieata Mx. 
Sarracenia purpurea L. (Ko-ko-koh Mokasin. Owls’ 
Mockasin.) Point Keewenah, Lake Superior, June 26th. 
yamus luteus Nutt. The only difference 
Flavicomas Sat1sp. Pu. | Willdenow makes between 
, en N. speciosum and lute- 
aLt. | um is that the former has 
. Nelumbo BI. hispid peduncles and peti- 
oles, and the latter smooth pa e however describes a 
variety of the N. a with smooth peduncles and pe- 
tioles, and the American spose according to Nuttall and the 
present Prof. Barton ha a sometimes partly muricate. 
Hence there seems to be but little difference between the 
two species. The colour of the flowers, unless there are 
other distinctive characters, is not of much consequence. 
Found in ‘ions quantities near Sandusky Papel west end 
Bn Erie 
