Cannabinacee. 403 
Orver CIlL—CANNABINACEZ:. 
A small order comprising only two genera, each of which is 
limited to a single species. In technical characters these 
plants are scarcely different from the Mordcece, the main dis- 
tinction lying in the fruit and seed. Cannabis sativa, Hemp 
plant, is an erect dicecious annual 6 to 10 feet high with 
elegant digitate leaves, racemose male flowers having a 5-lobed 
perianth and 5 stamens, and spicate female flowers with a 
membranous spathaceous perianth open on one side. The 
native country is not known with certainty, probably Western 
Asia. Himulus Lipulus, the Hop, is a rather common 
twining plant in the South of England, though doubtless 
_ better known in its cultivated forms. It is easily recognised 
by its scabrid twining stems, palmately lobed leaves, and female 
flowers in bracteate spikes or catkins. The latter constitute 
the Hops of commerce. 
Orver CII.—ULMACEA:. 
Trees with a watery juice. Leaves deciduous, alternate, 
simple, usually more or less hispid, and often oblique at the 
base. Stipules caducous. Flowers hermaphrodite or poly- 
gamous, arranged in clusters or fascicles. Perianth inferior, 
persistent, 4- to 9-lobed. Stamens 4 to 9; filaments adnate 
to the perianth. Fruit 1- or 3-celled, indehiscent, drupaceous 
or membranous, and furnished with a circular wing. Seeds 
solitary, pendulous. This order includes about six genera and 
fifty species. Natives of the northern temperate zone. 
1. ULMUS. 
Flowers appearing in Spring before or with the leaves, 
usually all perfect ; fruit 2-celled, winged all round. Perianth 
4- to 9-lobed. Stamens 4 to 9. The species are ey dis- 
persed. The ancient Latin name. 
1. U. montana. Wych or Scotch Elm.—A large re aiesueel 
tree attaining a height of 120 feet, with spreading branches and 
large ovate-oblong doubly-serrate acuminate leaves. Fruit pro- 
duced sparingly ; seed in the centre of the oblong or orbicular 
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