376 



LENTIBULARI^ 



monosymmetric, yellow ; calyx of 2 equal sepals ; corolla per- 

 sonate, spurred ; stamens 2, lateral. (Name from the Latin 

 utriculus, a little bladder.) 



1. U. vulgaris (Common Bladderwort). — A remarkable sub- 

 merged, aquatic plant j leaves pinnately divided, ciliate, and 

 bearing bladders $ in. long ; flowers 4 — 8, on a stout scape 

 6 — 12 in. high, in a loose raceme; bracts ovate, thick, about 



one-third the length of the pedicels ; corolla 

 bright yellow or orange, with nearly equal 

 lobes, and conical acute spur adpressed to, 

 and half as long as, the lower lip. — Ditches 

 and pools; frequent. — Fl. June— August. 

 Perennial. 



2. U. major (Overlooked Bladderwort). 

 — A more slender species with leaves pin- 

 nately divided and ciliate, bearing bladders 

 yo in. long ; bracts lanceolate, not more 

 than a quarter as long as the slender, 

 nearly erect pedicels ; upper corolla-lip 2 

 or 3 times as long as the broad, flat, lower 

 one, lemon-yellow ; spur conical. — Pools ; 

 rare.— Fl. June — September. Perennial. 



3. U. minor (Lesser Bladderwort). — A 

 small, slender species with repeatedly 

 forked, not ciliate leaves bearing bladders 

 T ^2 in. long; and 2 — 6 flowered racemes of 

 small, pale yellow flowers, with equal 

 corolla-lobes and a very short, blunt spur. — 

 Pools and ditches ; not common. — Fl. June 

 — September. Perennial. 



4. U. intermedia (Intermediate Bladder- 

 wort). — Leaves distichous, repeatedly 

 forked, ciliate ; bladders i in. long, on 

 slender stalks, separate from the leaves ; 

 flowers 3 — 4 in a raceme, pale yellow ; 



upper corolla-lip twice as long as the lower ; spur conical, acute. — 

 Pools and ditches ; rare. — Fl. July — September. Perennial. 



2. PiNGUfcuLA (Butterwort). — Marsh plants with small roots; 

 a rosette of entire, involute, viscid, radical leaves; and solitary 

 flowers on long, erect pedicels ; calyx 2-lipped ; upper-lip 3-cleft ; 

 lower 2-cleft ; corolla gaping, spurred. (Name from the Latin 

 pinguis, fat, from the greasy leaves.) 



1. P. vulgdris (Common Butterwort). — A singular and very 



PINGUICULA LUSITANICA 



(Pale Butterwort). 



