274 FOREST CULTURE AND 
lington, Ballarat, and other localities, from plants 
supplied at the Botanic Garden. The Rev. Mr. Ha- 
genauer, of the Gipps Land Aboriginal Mission sta- 
tion, obtained 220 pounds of arrow-root from one 
eighth of an acre of this Canna. The gathering of 
the roots is effected about April. The plants can be 
set out in ordinary plowed land. Captain James 
Hall, of Hastings, prepared also largely the starch 
from this root. Starch grains remarkably large. 
‘anna flaccida, Roscoe. — Carolina. Probably also 
available for arrow-root, though in the first instance, 
like many congeners, chosen only for ornamental cul-~ 
ture. 
Canna glauca, Linne.—One of the West Indian 
arrow-root cannas. 
Cannabis sativa, L.*—The Hemp-plant. Indige- 
nous to various parts of Asia, as far west as Turkey 
and as far east as Japan. Cultivated for its fiber since 
ancient times. Particularly in hot climes it exudes 
the ««Churras,’’ a resinous substance of narcotic, intox- 
icating property. The foliage contains also a volatile 
oil, which the seeds yield by pressure —the well- 
known fixed hemp-oil. The staminiferous plant is 
pulled for obtaining the fiber in its best state, imme- 
diately after flowering ; the seeding plant is gath- 
ered for fiber at a later stage of growth. Good soil, 
well drained, never absolutely dry, is needed for 
successful hemp-culture. Hemp is one of the plants 
yielding a full and quick return within the season. 
The Summer temperature of St. Petersburg (67° F.) 
and of Moscow (62° F.) admit yet of the cultivation 
of this plant. 
Capparis spinosa, L.—South Europe and North Af- 
