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DESCRIPTION OF MEDICINAL PLANTS. 
petioled, oblong, obtuse, sinuate-pinnatifid. Flowers in 
cymose-diverging racemes, which are loose, leafless, perfect, 
all bractless. Calyx 3-5 parted, dry in fruit. Stamens 5 ; 
filaments filiform. Styles 2. Seeds vertical, lenticular. Fruit 
not perfectly enclosed. Introduced, but frequently appear- 
ing in cultivated grounds. Also frequently cultivated on 
account of its feathery form and agreeable odor. FI. in 
summer. The herb is collected. 
Chenopodium ambrosioides, L. var. anthelminticum, Gray. Worm- 
seed. Smoothish ; leaves slightly petioled, oblong or lance- 
olate, strongly toothed, the lower sometimes almost laciniate- 
pinnatifid. Spikes more or less elongated, mostly leafless. 
Fruit perfectly enclosed in the calyx. FI. July. In waste 
ground. The seed is used. 
PHYTOLACCACEiE. (Pokeweed Family.) 
Phytolacca decandra, L. Pokeroot. Pokeberry. A smooth, 
stout, succulent perennial, with a rather unpleasant odor and 
a very large, poisonous root, often 4-6' in diameter, sending 
up stout stalks 6-9° high. Calyx of 5 rounded and petal-like 
sepals. Stamens and styles 10. Ovary of 5-12 carpels united 
in a ring, with as many short separate styles, in fruit forming 
a depressed globose 5-12-celled berry, with a single vertical 
seed in each cell. Embryo curved in a ring around the al- 
bumen. Color of calyx white; ovary green ; berries in long 
racemes, dark purple and filled with crimson juice. FI. July- 
September. Fruit matures unequally. Very common in rich 
soils. The root and the berries are collected separately. 
POLYGON ACEiE. (Buckwheat Family.) 
Rumex crispus, L. Curled Dock. Yellow Dock. Smooth, 
3-4° high ; leaves with strongly wavy-curled margins, lan- 
ceolate, acute, the lower truncate or scarcely heart-shaped 
at base. Flowers perfect or monceciously polygamous ; calyx 
of 6 sepals; the 3 outer herbaceous, sometimes united at 
base, spreading in fruit ; the 3 inner larger, somewhat col- 
