62 
CANNABACEAE 
orange with a roughish surface. (Wm. Maclure, an American geolo¬ 
gist-) 
1. M. pomifera Sehneid. Osage Orange. Tree 5 to 17 m. high, 
with furrowed orange-color bark; thorns 4.8 to 7 cm. long; leaves ovate 
to oblong-lanceolate, shiny; fruit subglobose, 9.6 to 14.4 cm. in diameter. 
:—Cult, as a fence barrier or hedge plant; native of the se. U. S. 
3. FICUS L. 
Trees and shrubs, often climbers. Leaves alternate. Receptacles (in 
which the flowers are concealed) borne in the axils of the leaves. Stipules 
large, falling off as the leaves expand. Achene seed-like. (Ancient 
Latin name.) 
1. F. carica L. Fig. Tree 5 to 23 m. high; leaves 3 to 5-lobed; 
fruit solitary, axillary, pear-shaped.—Cult, from the Levant. The first figs 
grown in California were brought from Spain by the Franciscans and 
planted in the Mission gardens. As the Mission Fig it has since been 
widely cultivated. About 1881 considerable numbers of the Smyrna 
Fig were planted, and later, through the definite introduction of the 
Blastophaga wasp as a pollinating agent, the industry was established on 
a commerical basis in the San Joaquin Valley. Cf. life history of the 
fig. Proceedings Cal. Fruit Growers Convention, 34th Conv. (1908), 36th 
Conv. (1909), 38th Conv. (1910); Science 10:570,—1899; Proceedings 
Cal. Acad. Sci. ser. 2, 5 :897-1003. 
CANNABACEAE. HEMP FAMILY 
Aromatic herbs without latex. Leaves palmately nerved, more or less 
divided, with persistent stipules. Flowers dioecious, greenish, small, 
wind-pollinated. Staminate flowers in loose compound racemes or pan¬ 
icles. Sepals 5. Stamens 5, with erect filaments. Pistillate flowers in 
close clusters or catkins. Calyx cup-like, entire, embracing the ovary 
and achene. Ovary 1-celled with 2 styles or 2 elongated stigmas and a 
pendulous curved ovule. Fruit a nutlet.—Species 3, Asia and Eur. 
Stems erect; stamens drooping. . 1 . Cannabis. 
Stems twining; stamens erect.2. Humulus. 
1. CANNABIS L. Hemp 
Rough annual herbs with watery juice and tough fibrous bark. Leaves 
digitate with 5 to 7 nearly linear coarsely toothed leaflets. Staminate 
flowers in axillary panicles, the pistillate in short axillary spikes. (An 
ancient Greek name.) 
1. C. sativa L. Common Hemp. Tall coarse plant 2 to 3 m. high; 
upper leaves alternate, the others more or less opposite.—Cult, from 
Asia for its remarkable stem fibres, which are used for cordage, and for 
its seeds which yield a fat oil. 
2. HUMULUS L. Hop 
Twining vines, the stems striated and roughish with hooked hairs. 
Leaves opposite, rough, palmately lobed. Flowers dioecious, in axillary 
clusters. Staminate flowers in drooping racemes, pistillate in pairs under 
large bracts making a cone-like catkin. (A late Latin name of Teu¬ 
tonic origin.) 
