146 PKNTANDRIA DIGTNIA. [CL. V. 



2. D. maritimus. Sea-coast Carrot. Bristles of the seeds flattened ; 

 leaflets dilated, fleshy, pinnatifid, with rounded segments ; umbels des- 

 titute of a central coloured flower, and convex when in seed. 



Smaller than the former. Biennial : flowers in July and August : grows 

 on the sea-coast, in the south of England, and in Ireland : not common. 

 Eng. Hot. vol. xxxvi. pi. 2560. Eng. Fl. vol. ii. p. 40. 429. 



59. BU'NIUM. EAHTH-NUT. 



Flowers all uniform and regular, many of the innermost barren. 

 Calyx of a few small, acute, spreading leaves. Petals equal, in- 

 versely heart-shaped, with an inflected point. Filaments thread- 

 shaped, spreading, longer than the corolla ; anthers roundish. 

 Germen inferior, egg-shaped, ribbed, smooth. Styles awl-shaped, 

 egg-shaped, and swelled at the base, spreading, permanent ; stig- 

 mas obtuse. Fruit narrow, egg-shaped, ribbed, crowned with the 

 partly obsolete calyx, and the permanent styles. Seeds each with 

 three distant ribs, and intermediate furrows. Name from bounos, 

 a hill, where the plant is generally found. 144. 



1. B. flexuosum. Earth-nut. Pig-nut. General involucral bracteas 

 scarcely three ; stem tapering and zig-zag at the base ; fruit somewhat 



beaked ; leaves thrice pinnatifid, with long acute segments. Root a 



large irregular tuber : stem about a foot high : flowers white, all irre- 

 gular. The root is sweet and eatable. Perennial : flowers in May and 

 June: grows in dry pastures: common. Eng. Bot. vol. xiv. pi. 

 988. 430. 



60. SI'UM. WATER-PARSNEP. 



Flowers all uniform, and generally perfect. Calyx superior, of 

 five small, acute, unequal leaves. Petals five, equal, inversely 

 heart-shaped, with an inflected point. Filaments thread-like, 

 spreading, longer than the corolla; anthers roundish. Germen 

 egg-shaped, striated. Styles cylindrical, spreading, swelling a 

 little at the base, shorter than the petals ; stigmas obtuse. Fruit 

 egg-shaped, slightly compressed, furrowed, crowned with the per- 

 manent styles and withered calyx. Seeds tumid, convex, each 

 five-ribbed. Name from the Celtic siw, water, the genus being an 

 aquatic one. 145. 



1. S. latifiilinm. Broad-leaved Water-parsnep. Leaves pinnate, with 

 lance-shaped, equally serrate leaflets ; umbels terminal. - Stem from 

 three to six feet high, deeply furrowed, smooth : leaves with the stalks 

 enlarged at the base and embracing the stem : flowers numerous, white, 

 small. Poisonous. Perennial: flowers in June and July: grows in 

 rivers, ditches, and marshes : not common. Eng. Bot. vol. iii. pi. 204. 

 Eng. Fl. vol. ii. p. 56. 431. 



2. S. anguttlfolium. Narrow-leaved Water-parsnep. Leaves pinnate, 

 with unequally lobed and serrate leaflets ; umbels stalked, opposite to 



the leaves. Stem about a foot high, striated, smooth : petals white, 



those of the outermost flowers slightly irregular. Poisonous. Perennial : 

 flowers in July and August: grows in ditches and rivulets: common. 

 Eng. Bot. vol. ii. pi. 139. Eng. Fl. vol. ii. p. 56. 432. 



