LENTIBULARLE. [ Pmguicvla. 



Ord. 54. LENTIBULARIiE. Rich. Butterwort Family. 



Calyx divided, persistent. Corolla monopetalous, hypogy- 

 nous, irregular, spurred and 2-lipped. Stamens 2, included, 

 inserted at the bottom of the corolla. Ovary 1-celled : style 

 1, very short. : stigma 2-lipped. Capsule 1-celled, many-seeded, 

 with a large central placenta. Seeds small, without albumen : 

 embryo sometimes undivided. — Aquatic or marsh, herbaceous 

 plants, with the radical leaves undivided or compound, root-like, 

 and bearing bladders. Scapes with stipuliform, minute scales, or 

 destitute of them, sometimes ivith whorled vesicles, usually undi- 

 vided, single flowered, or with many -flowered racemes or spikes. 

 Flowers with a single bractea or rarely none. 



1. Pinguicuj,a. Linn. Butterwort. 



Calyx 2-lipped, upper lip of three, lower of one, bifid segment. 



Corolla ringent ; spurred. Germen globose. Stigma large, 



of two unequal plates or lobes. Capsules 1-celled, with the 



seeds attached to a central receptacle. — Name from pinguis, 



fat ; the leaves being thick and greasy to the touch. 



Diandria. Monogynia. 



1. P. vulgaris, Linn. Common Butterwort. Spur cylin- 

 drical, acute, as long as the very irregular petal ; segments of 

 the calyx oblong ; capsule ovate. Br. Fl. 1. p. 8. E. Fl. v. i. 

 p. 26. E. Bot. t. 70. 



Bogs, moist banks and heaths, abundant, least frequent in the south- 

 ern counties. Fl. June. %. — Foliage covered with minute raised 

 crystaline points, all radical, fleshy, the margins involute. Scapes 

 single-flowered. Fhwers purple, very handsome, drooping ; palate 

 covered with white, compactly jointed hairs. Anthers 1-celled, verti- 

 cal, placed just beneath the large horizontal plate or lobe of the stigma. 

 Style short. Caps, ovate, one-celled, bursting half way into two valves. 

 Seeds numerous, oblong, rough. — The Laves are said to coagulate 

 milk, whence the English name. 



2. P. grandiflora, Willd. Large-flowered Butterwort. 

 Spur cylindrical, acute, as long as the nearly regular, five- 

 cleft, veiny petal ; segments of the calyx ovate, obtuse ; cap- 

 sule ovate. Br. FL 1. p. 8. E. Fl. v. i. p. 29. E. Bot. t. 2184. 



Western part of the County of Cork, in marshy ground ; Mr. J. 

 Drummond. Near Ken m are ; Mr. W. Wilson. Fl. May. 1£. — 

 This plant, apparently as rare upon the continent as in Britain, and 

 perfectly distinct from P. vulgaris, may be easily cultivated for a sup- 

 cession of years. As in the P. vulgaris, the old leaves die away in 

 winter, and' buds or hybernacula are formed, which expand into perfect 

 individuals in the spring. " Few plants can exhibit a more beautiful 

 appearance, early in the year, than a cluster of P. grand/flora, blos- 

 soming under die shelter of a common frame. It is a mass of large 



