136 PENTANDRIA DIGTNIA. [CL. \ . 



lance-shaped and elliptical, smooth on the margin ; flowers stalked ; 



segments of the calyx lance-shaped. Flowering branches erect : 



flowers solitary, bright-blue. Perennial : flowers in May : grows on 

 banks and in hedges : rare. Eng. Bot. vol. xiii. pi. 917. Eng. Fl. vol.i. 

 p. 339. 381. 



2. V. major. Greater Periwinkle. Stems ascending ; leaves egg- 

 shaped, fringed; flowers stalked; segments of the calyx linear, elongated. 

 Flowers pale-blue, nearly twice the size of those of the former species. 

 Perennial : flowers in May : grows in woods: rare, and not indigenous. 

 Eng. Bot. vol. viii. pi. 514. Eng. FL vol. i. p. 340. 382. 



DIGYNIA. 



42. HERNIA'RIA. RUPTUHE-WORT. 



Calyx inferior, of one leaf, internally coloured, deeply divided 

 into five acute, spreading, permanent segments. Corolla none. 

 Filaments awl-shaped, shorter than the calyx, with five inter- 

 mediate imperfect ones; anthers five, two-lobed. Germen egg- 

 shaped. Styles very short; stigmas pointed. Capsule mem- 

 branous, one-celled. Seed solitary, roundish, pointed, filling the 

 capsule. Named from hernia, rupture. 127. 



1. H, gldbra. Smooth Bupture-wort. Herbaceous; leaves and calyx 



smooth. Root tapering : stems prostrate, much branched : leaves 



inversely egg-shaped, on short stalks, glabrous : flowers small, green, in 

 dense clusters. Perennial : flowers in July and August : grows in sandy 

 ground, in the south of England. Eng. Bot. vol. iii. pi. 206. Eng. Fl. 

 vol. ii. p. 8. When the leaves are ciliated, it is the H. ciliata, Ciliated 

 Rupture-wort, of some botanists. 383. 



43. CHENOPO'DIUM. GOOSE-FOOT. 



Calyx inferior, of one leaf, deeply divided into five egg-shaped, 

 concave, permanent segments, membranous at the edges. Corolla 

 none. Filaments awl-shaped, as long as the calyx ; anthers 

 roundish, two-lobed. Germen round, depressed. Styles short ; 

 stigmas obtuse. Seed solitary, round, flattened, enveloped by 



the permanent, five-cornered calyx. Name from c/ien, a goose, 



and pous, a foot. 128. 



* Leavet angular. 



1. Ch. Bi'mus Henricus. Mercury Goose-foot. Good Henri/. Leaves 

 triangular, arrow-shaped, entire ; spikes terminal and axillar, compound, 



leafless. Root fleshy, branched : steins a foot high, furrowed, leafy. 



Perennial : flowers in May and June : grows in waste ground, and by 

 roads, near houses: frequent. Eng. Bot. vol. xv. pi. 1033. Eng. Fl. 

 vol. ii. p. 10. 384. 



2. Ch. intermedium. Upright Goose-foot. Leaves tri3ngular, toothed ; 



clusters very long, straight, approaching the stem, nearly leafless. 



Root fibrous : stem erect, two feet high, angular, furrowed : leaves stalked : 

 clusters axillar and terminal, erect, shorter than the leaves: seed five 

 times as large as that of the following species. Annual : flowers in Au- 



