The Hemp (_Cannabis sativa_), is an annual. The male and female flowers are on different plants as in the Hop and the Nettle. The male flowers are produced in panicles, and the female ones in heads separated by bracts, as shown in a magnified female flower at _a_ in _fig._ 74. The ripe fruit or nut is enveloped in a scale as shown at _b_; and _c_ is a highly magnified section of the nut. The male flower has five stamens, and a calyx of five sepals. The leaves are opposite or alternate, and digitate, that is cut into five long segments like fingers, though the upper leaves have only three segments. They are serrated on the margin, and rough on the surface. The fibres of the stem, when separated from the pulpy part by maceration, are manufactured into cordage; and the seeds are mucilaginous, and are used for feeding birds. The smell of hemp when growing, produces the same effects as that of hops in excess; and in hot countries it is followed by a kind of stupor, like that which is the effect of opium. The Pellitory of the wall (_Parietaria officinalis_), has the male and female flowers on the same plant. The male flowers have four stamens, which spring back in the same manner as those of the nettle; and the female flowers have the same kind of stigma. TRIBE II.—ARTOCARPÆ. The plants included in this division differ so widely in their general appearance from those of the former tribe, that it is necessary to be a botanist to perceive the resemblance between them. When, however, they are botanically examined, they will be found to agree in almost every respect, except in their juice being milky and glutinous instead of watery. The tribe takes its name from the Bread-fruit tree (_Artocarpus incisa_). In this plant, the male flowers are densely crowded round a spongy receptacle, so as to form a long, somewhat club-shaped cat kin. Taken singly, each male flower consists of a calyx divided into two sepals, and containing a single stamen, with a two-celled anther, and a very broad filament. The female flowers are placed round a globular receptacle, also of a spongy consistency; and each consists of an undivided calyx, hollow at the base to contain the seed, and terminating in two styles. The styles wither as the seeds gradually ripen, but the peaks of the female flowers remain, and render the surface of the fruit rough. The fruit itself is the spongy receptacle, which gradually dilates and becomes more pulpy, till it attains a very large size. The greater part of the ovules prove abortive, but those that ripen retain their calyx, though they remain embedded in the pulp. The proportion of ripe seeds is very small compared to the size of the eatable part of the bread-fruit; frequently only four or six seeds are found in a globe eight inches in diameter; and many fruits produce no seeds at all. One variety, in particular, is always without seeds. The fruit, when used, is generally put into an oven or before