MISSOURI BOTANICAL GARDEN BULLETIN 99 
Cupressus sempervirens. Coniferae.—An evergreen tree of 
southern Europe and western Asia. It grows to 80 feet in 
height, with erect or horizontal branches and dark green 
foliage. It is useful for ornamental effects, and is much 
planted about Mohammedan burial grounds in the neigh- 
borhood of Constantinople. 
Cupressus thurifera. Coniferae.— An evergreen tree 
reaching 70 feet in height, with horizontal branches form- 
ing a pyramidal head. It is a native of Mexico. 
Cycas circinalis. Cycadaceae. Fern palm.—This species 
differs from the sago palm in being somewhat taller, rarely 
branching, and having longer, gracefully arching leaves. 
It is a native of the Molucca Islands. 
Cycas media. Cycadaceae. Nut palm. — An Australian 
cycad reaching 15 feet in height. The trunk is cylindrical, 
and bears a large crown of leaves curved downward, with 
numerous glaucous leaflets. 
Cycas revoluta. Cycadaceae. Sago palm.— A Japanese 
lant becoming 6-10 feet high with the trunk simple or 
Beanthing: The leaves are long and recurved at the end, 
with many narrow, curved, sharp-pointed, stiff, shining 
een leaflets. The seeds are eaten by the natives, and sago 
is obtained from the inner part of the trunk. The leaves 
are dried, pressed, dyed green, and exported to America 
where they are used in decorative work and funeral designs. 
The cycads serve as a connecting link between the ferns and 
the higher seed-bearing plants. 
Cycas tonkinensis. Cycadaceae. — A native of Tonkin, 
China. The trunk is slender, cylindrical, erect, wholly cov- 
ered with large round scales. The leaves are slightly re- 
curved, glabrous, and the leaflets are sessile, long, and 
pointed. The petioles are woolly with robust spines. 
Cyperus alternifolius. Cyperaceae. Umbrella plant.—A 
plant of the sedge family, native of Madagascar. The stem 
reaches 4 feet in height and is crowned with about 20 leaves 
forming an umbel. The plant is much used in aquaria and 
jardinieres. 
Dioon edule. Cycadaceae—A Mexican cycad-like plant, 
with glabrous leaves 3-5 feet long. The leaflets are wedge- 
shaped and number about 100 on each side. The cones are 
cylindrical, bearing large seeds about the size of a Spanish 
shamtestis which are eaten by the natives. The plants are 
