JUNE. 183 
blue flowers, are very pretty, and grow from the sides of the 
stalk, so that it belongs to the second division mentioned 
last month. The leaves are very smooth and succulent, as 
well as the whole plant. The stem is procumbent, taking 
root at intervals. ‘This species is often found in the same 
stream with the Water-cress. There are still two species of 
this interesting genus, which must be mentioned next 
month. 
~ 
DIANDRIA. MONOGYNIA. 
CoROLLIFLORZ. LEUTIBULARIACE, 
PINGUICULA. (Burrerwort.) 
Generic Character. Calyx two-lipped, upper lip divided into 
three, lower, of one notched lobe. Corolla spurred. Leaves 
thick and greasy to the touch. 
PINGUICULA VULGARIS. Common Butterwort. The species 
of this genus are not very common except in certain loca- 
lities. They are called Butterwort from the leaves having 
the power of coagulating milk. The Laplanders and other 
northern nations make great use of them for this purpose. 
They pour the warm milk upon the leaves, when it becomes 
very creamy ; this they strain, and in a few days the curds 
