BUTTERWORT TEIBE. 507 



should be used after the milk is once turned : on the 

 contrary, a small portion of this solid milk will act upon 

 that which is fresh, in the manner of yeast." (Lindley.) 



1. PINGUICULA (Butterwort). Calyx 2-lipped, upper 

 lip 3-cleft, lower 2-cleft ; corolla gaping, spurred. 

 (Name from the Latin pinguis, fat, the leaves being 

 greasy to the touch.) 



2. UTRICULARIA (Bladderwort). Calyx of 2 equal 

 sepals ; corolla personate, spurred. (Name from the 

 Latin Utriculus, a little bladder, from the little air- 

 bladders which grow among the leaves.) 



1. PINGUICULA (Butterwort). 



1. P. vulgdris (Common Butterwort). Spur tapering ; 

 segments of the corolla very unequal, entire. Bogs and 

 heaths, principally in the North. A singular and very 

 beautiful plant. The leaves, which spring all from the 

 roots, have the edges rolled in; they are of a peculiar, 

 parchment-like hue, and have a frosted appearance. The 

 flowers are large, purple, very handsome, and grow in a 

 nodding manner, each on the summit of a delicate stem, 

 3 4 inches high, which springs directly from the root. 

 The root is fibrous, and has a very loose hold on the soft 

 ground in which it grows. Fl. June. Perennial. 



2. P. Lusitdnica (Pale Butterwort). Spur cylindri- 

 cal, obtuse, curved downwards ; segments of the corolla 

 nearly equal ; leaves and flower-stalks covered with 

 short hairs. Bogs in the western parts of England, in 

 the North of Scotland, and in Ireland. Of the same 

 habit as the last, but much smaller. The leaves are 

 greenish white, and veined ; the flowers light pink. 

 Fl. July September. Perennial. 



* P. grandiflora (Large-flowered Butterwort) is a 

 yet more beautiful plant than P. vulgdris. It is distin- 

 guished by its large, very irregular, purple corolla, the 

 middle segment and spur of which are notched ; it grows 

 in bogs in the counties of Cork and Kerry, Ireland. P. 



