360 MONOECIA PENTANDRIA. QcL. XXI. 



PENTANDRIA. 



12. XA'NTHIUM. BUR-WEED. 



Barren Flower compound. Common calyx of many imbricated, 

 equal scales. Compound corolla hemispherical, uniform ; florets 

 of one petal, funnel-shaped, with five equal, marginal segments. 

 Filaments five in each floret, parallel, forming a cylinder; anthers 

 erect, parallel, not united. Common receptacle scarcely any, the 

 florets being separated by scales. 



Fertile Flowers beneath the others. Common calyx two-flow- 

 ered, formed of two opposite, acutely three-lobed leaves, covered 

 with hooked prickles, and united to the germen. Corolla none. 

 Germen oval. Styles two pairs, hair-like ; stigmas simple. Drupe 

 formed of the permanent prickly calyx. Nut two-celled. Seeds 

 solitary. Name from xanthos, yellow. 431. 



1. X. strumdrium. Broad-leaved Bur-weed. Prickles none ; leaves 



heart-shaped, three-ribbed at the base. Stem two feet high, erect, 



branched, furrowed, leafy : leaves stalked, lobed, and doubly serrate. 

 Annual: flowers in August and September: grows in dunghills and in 

 rich ground, in the south of England : rare, and not indigenous. Eng. 

 Bat. vol. xxxvi. pi. 2544. Eng. Ft. vol. iv. p. 136. 1355. 



13. AMARA'NTHUS. AMARANTH. 



Barren Flowers. Calyx of three or five erect, lance-shaped, 

 coloured leaves. Corolla none. Filaments three or five, hair- 

 like, erect, as long as the calyx ; anthers oblong, two-lobed. 



Fertile Flowers in the same cluster. Calyx of three or five erect, 

 lance-shaped, coloured leaves. Corolla none. Germen superior, 

 egg-shaped. Styles three, sometimes two ; stigma acute, downy 

 on the upper side. Capsule egg-shaped, one-celled. Seed soli- 

 tary, globular, filling the capsule. Name from a, not, and 

 maraino, to fade. 432. 



1. A. IHitum. Wild Amaranth. Flowers three-cleft, with three 



stamens ; leaves egg-shaped ; stem spreading. Stems branched, round, 



furrowed, leafy : leaves roughish on the edges : flowers green, in small 

 axillar, leafy clusters. Annual : flowers in August : grows on dung- 

 hills and in rich ground, in the south of England, the outcast of gardens : 

 rare. Eng. Bot. vol. xxxi. pi. 2212. Eng. Fl. vol. iv. p. 137. 1356. 



14. BRYO'NIA. BRYONY. 



Barren Flowers. Calyx of one leaf, bell-shaped, with five acute 

 teeth. Corolla bell-shaped, with five egg-shaped, spreading seg- 

 ments. Filaments three, short ; anthers five ; two together on two 

 of the filaments. 



Fertile Flowers. Calyx and corolla as in the barren flower. 

 Germen inferior. Style three-cleft, shorter than the corolla ; 

 stigmas cleft, spreading. Berry roundish, smooth, with two or 

 more cells. Seeds in pairs, roundish. Named from bruo, to shoot, 

 or grow rapidly. 



