146 PEXTAtfDRIA DIGYN1A. [CL. V 



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

 tened ; leaflets dilated, fleshy, pinnatifid, with rounded segments ; 

 umbels destitute 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. Bot. vol. xxxvi. pi. 2560. Eng. Fl. 

 vol. ii. p. 40. 429. 



59. BU'NIUM. EARTH-NUT. 



Flowers all uniform and regular, many of the innermost bar- 

 ren. Calyx of a few small, acute, spreading leaves. Petals 

 equal, inversely heart-shaped, with an inflected point. Fila- 

 ments thread-shaped, spreading, longer than the corolla ; an- 

 thers roundish. Germen inferior, egg-shaped, ribbed, smooth. 

 Styles awl-shaped, egg-shaped, and swelled at the base, spread- 

 ing, permanent ; stigmas obtuse. Fruit narrow, egg- shaped, 

 ribbed, crowned with the partly obsolete calyx, and the perma- 

 nent styles. Seeds each with three distant ribs, and interme- 

 diate furrows. Name from bounos, a hill, where the plant is 

 generally found. 144, 



1. B.flexuosum. Earth-nut. Pig -nut. General in volucral brae- 

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

 somewhat beaked ; leaves thrice pinnatifid, with long acute seg- 

 ments. Boot a large irregular tuber : stem about a foot high : 



flowers white, all irregular. The root is sweet and eatable. Pe- 

 rennial : flowers in May and June : grows in diy pastures : com- 

 mon. 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, in- 

 versely 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 permanent styles and withered calyx. Seeds 

 tumid, convex, each five-ribbed. Name from the Celtic siiv, 

 water, the genus being an aquatic one. 145. 



1. S. latifolium. 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. angustifolium. 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. 



