POLYGONACER. 39 
ATRIPLEX HORTENSIS. Linn. 
Found occasionally on waste ground, but only as an escape from 
cultivation. I have seen this on railway banks and newly-disturbed 
ground about Leatherhead, Surrey. 
ATRIPLEX NITENS. Reb. 
Has occurred in the Isle of Wight, chiefly on the shore between 
Ryde and Binstead, and in other places, but does not appear to become 
permanently established. 
ORDER LXII—POLYGONACES. 
Annual or perennial herbs, or more rarely erect or climbing shrubs, 
with the leaves alternate, very rarely opposite, simple, usually stalked, 
almost always with the stipules forming a sheath (ochrea) enclosing 
the stem, which, however, is sometimes reduced merely to a ring. 
Flowers perfect, or more rarely unisexual, and then usually dic- 
cious, regular, commonly in axillary clusters, combined into spikes, 
racemes, or panicles. Perianth single or double, herbaceous, or 
coloured like a corolla, with 3 or 6 segments in one whorl, or 4 or 6 
in two whorls; the segments free, or more or less cohering at the base, 
sometimes united into a tube; when free, the inner ones often increas- 
ing in size after flowering; estivation imbricated. Stamens definite, 
usually from 5 to 8, perigynous, or more rarely hypogynous and 
seated on a glandular disk. Ovary solitary, free or adhering at the 
base to the tube of the perianth or to the angles of the ovary, 1-celled 
and 1-ovuled; ovule orthotropous; styles 3, more rarely 2 or 4, free 
or combined at the base, sometimes very short, so that the stigmas 
are nearly or quite sessile. Fruit a small indehiscent nut, 3-sided 
when there are 3 stigmas, or lenticular when there are only 2, or 
4-sided in the few cases in which they are 4. Seed solitary, with a 
membranous testa and a basal hilum; embryo straight or curved; 
albumen usually abundant, farinaceous, rarcly fleshy. 
GENUS J—RU MEX. Linn. 
Flowers perfect, more rarely monecious or diccious by abortion. 
Perianth herbaceous, of 6 segments in 2 rows, the 3 outer (sepals) 
slightly cohering at the base, and not accrescent, the 3 inner (peials) 
