54 DIANDRIA MONOGYMA. [CL. II. 



4. PINGUI'CULA. BUTTERWORT. 



Calyx small, gaping, permanent; upper lip erect, three-cleft; 

 lower reflected, cleft. Corolla gaping, having the margin irre- 

 gularly five-cleft, with a spur behind. Filaments cylindrical. 

 Anthers roundish. Germen globose. Style very short. Stigma 

 with two unequal lips. Capsule egg-shaped, one-celled. Seeds 

 numerous, cylindrical. Named from pinguis, fat ; on account of 

 the appearance of the leaves. 9- 



1. P. vulgdris. Common Butterwort. Spur cylindrical, acute, as long 

 as the petal, upper lip two-lobed, lower divided into three segments ; 

 capsule egg-shaped. Whole plant smooth, covered with small trans- 

 parent grains : leaves radical, egg-shaped, fleshy, with the edges invo- 

 lute, pale green : flowers drooping, deep purple : scape slightly hairy 

 towards the top. Perennial : flowers in June : grows in marshy places, 

 and especially wet heaths : common in the North of England, in Ireland, 

 and in all parts of Scotland. It is imagined to cause diseases in sheep, 

 but it appears not to be eaten by these animals or other cattle. Eng. Bot. 

 vol. i. pi. 70. Eng.Fl. vol. i. p. 28. 35. 



2. P. grand'iflara. Spur cylindrical, notched, as long as the petal ; 



middle segment of the lower lip notched. Larger than P. vulgaris ; 



leaves pale greenish-yellow : stalks from six to nine inches high : corolla 

 deep purple, reticulated all over with dark blue veins. Perennial : flowers 

 in May : grows on bogs in the western part of the county of Cork, where 

 it was discovered by Mr. Drummond ; also near Kenmare, Ireland. Eng. 

 Bot. pi. 2184. Eng . Ft. vol. i. p. 28. 36. 



3. P. Lvsitdnica. Pale Butterwort. Spur curved, obtuse, shorter 

 than the petal ; divisions of the petal nearly equal ; capsule globose ; stalk 

 hairy. Whole plant villous : leaves egg-shaped, thin, somewhat trans- 

 lucent, involute at the edges, very pale green, veined with purple : 

 flowers pale purple or rose colour : scape hairy. Perennial : flowers in 

 June: grows in marshy places and wet heaths : Dorsetshire, Hampshire, 

 Devonshire and Cornwall : plentiful in Ireland : in many parts of the 

 Highlands and Hebrides much more abundant than the common Butter- 

 wort. The two species are readily distinguished by their general appear- 

 ance ; P. Liuitanica being much more delicate and paler than the other. 

 Eng. Bot. vol. iii. pi. 145. Eng. Fl. vol. i. p. 28. 37. 



4. P. alpina. Spur conical, slightly curved, shorter than the petal : 

 middle segment of the lower lip slightly retuse ; capsule conical ; stalk 



nearly smooth. Leaves oblong, thin, less transparent than in P. Lusi- 



tanica, pale green, sometimes tinged with purple : flowers yellow. Pe- 

 rennial : found by the Rev. George Gordon, in 1831, in the bogs of 

 Auchterflow and Shannon, Rosehaugh, Ross-shire; Isle of Skye ; first 

 determined by Mr. Hewett Watson as a British species, and described 

 by Dr. Graham. Eng. Bot. Suppl. pi. 2747. Brit. Fl. 4th ed. vol. i. 

 p. 8. 38. 



5. UTRICULA'RIA. BLADDERWORT. 



Calyx of two small, egg-shaped, equal leaves. Corolla masked ; 

 upper lip flat, obtuse, erect ; lower lip with a prominent heart- 

 shaped palate ; spur projecting from the base. Stamens short. 

 Anthers small, adhering together. Germen globose. Style thread- 



