DESCRIPTIVE LIST OF FLOWERS. 161 
CIMICIFUGA.—Buezanz. 
[From the Greek, signifying to drive away bugs.—A Siberian species being 
used as a bugbane.] 
Cimicifuga racemésa.—Black Snake-root.—Black Co- 
hosh.—A native plant, not often seen in gardens, but 
which, from its stately habit, is worth growing where there 
is room for it. The leaves are large and much divided ; 
the flower-stalk grows to the height of six or eight feet, 
and produces numerous long spikes of small white flow- 
ers. The root of this is one of the many things that have 
had a reputation as antidotes for snake bites. This is 
sometimes called Actwa racemosa; the Actas have ber- 
ry-like fruit, while this has dry pods. Actwa spicata of 
our woods, is rather showy for its fruit; there are two 
varieties, alba and rubra, with white and red _ berries, 
which may find a place in large collections. 
CLARKTIA. 
[Named in honor of Capt. Clark, who discovered it in his expedition. with 
Capt. Lewis, to the Columbia river.] 
Clarkia pulchélla.—Beautiful Clarkia—A handsome 
dwarf-plant, eight to twelve inches high, with beautiful 
rose or light-purple flowers; annual, as are all the species. 
In bloom from July to September. If the seed is planted 
in April or May it will succeed very well, but the plants 
will be much stronger from seed sown in August or Sep- 
tember. The young plants will stand the winter very 
well, if protected with a few leaves. The soil should not 
be over-rich or moist, as the plants frequently damp off if 
so situated. In a good, rather light loam, it succeeds 
best. The varieties of this species are numerous, viz. :— 
white, rose, lilac, with double varieties of the same: 
Tom Thumb varieties, marginata, etc., integripetala alba, 
Jimbriata and integripetala. 
