176 HEXANDRIA TRIGYNIA, [CL. VI, 



with six acute segments, and six intermediate plaits. Petals six, 

 very minute, egg-shaped, from the mouth of the calyx. Fila- 

 ments thread-shaped, incurved, short ; anthers roundish. Ger- 

 men egg-shaped. Style cylindrical, very short ; stigma round 

 and flat. Capsule globose, two-celled, with a transverse par- 

 tition. Seeds numerous, minute, triangular. Named from 

 peplion, anciently applied to an allied plant. 198. 



1. P. Portula. Water Purslane. Petals generally wanting : leaves 

 opposite, inversely egg-shaped, stalked. Stems numerous, creep- 

 ing : flowers small, axillar, solitary, reddish. Annual : flowers in 

 July and August: grows in watery places, especially such as be- 

 come dry in summer: frequent. Eng. JBot. vol. xvii. pi. 1121. Eng. 

 Fl vol. ii. p. 187. 554. 



DIGYNIA. 



20. OXY'RIA. MOUNTAIN SORREL. 



Calyx inferior, of two opposite, lance-shaped, permanent 

 leaves. Petals two, inversely egg-shaped, erect, permanent. 

 Filaments awl-shaped, shorter than the calyx 5 anthers erect, 

 two-lobed. Germen superior, egg-shaped, compressed, with 

 membranous edges, cleft. Styles very short, erect ; stigmas in 

 many tufted segments. Seed one, egg-shaped, compressed, with 

 a dilated, membranous wing; Named from ozys, acid. 199. 



1. O. reniformis. Kidney-leaved Mountain Sorrel. Stem from 

 six inches to a foot high, almost leafless : leaves almost all radical, 

 numerous, kidney- shaped : panicle erect, branched : flowers small, 

 drooping. Perennial: flowers in June : grows on moist rocks and 

 by rills, on the higher mountains of Scotland, Wales, the north of 

 England, and Ireland : abundant. Eng, Bot. vol. xiii. pi. 910. Eng. 

 Fl. vol. ii. p. 188. 555. 



TRIGYNIA. 

 21. EU'MEX. DOCK SORREL. 



Calyx inferior, of three obtuse, permanent leaves. Petals 

 three, larger than the calyx, and similar in colour, but thinner 

 and more veiny, permanent, ultimately enlarged ajid converging 

 round the seed. Filaments thread-shaped, very short ; anthers 

 erect, oblong, two-lobed. Germen superior, triangular. Styles 

 thread-shaped, spreading, standing out between the petals; 

 stigma large, in many tufted segments. Seed single, triangular, 

 polished. Name of unknown origin. 200. 



* Flowers all per feet. 



1. R. sanguineus. Bloody-veined Dock. Enlarged petals entire, 

 oblong, one at least bearing a tubercle ; leaves lance-shaped, some- 

 what heart-shaped. Stem two or three feet high, erect, branched, 



leafy, reddish. Leaves ail stalked, slightly curled at the edges, with 



