URTICACE.E. (NETTLE FAMILY.) 435 
Maclura adrantIaca, Nutt., the Osage Orange, or Bow-wood 
of Arkansas, is sparingly cultivated for hedges. 
Suborder II. CANNABINEjE. The Hemp Family. 
2. HtMULIJS, L. Hop. 
Flowers dioecious ; the sterile in loose axillary panicles : sepals 
and stamens 5. Fertile flowers in short axillary and solitary 
spikes or catkins : bracts foliaceous, imbricated, each 2-flowered. 
Calyx 1-sepalled, embracing the ovary. Achenia invested with 
the enlarged scale-like calyx, together forming a membranaceous 
strobile. Embryo coiled in a flat spiral. — A rough perennial 
twining herb, with mostly opposite heart-shaped and 3-5-lobed 
leaves, and persistent ovate stipules between the petioles. Calyx- 
scales in fruit covered with orange-colored resinous grains, in 
which the peculiar bitterness and aroma of the hop resides. 
(Name a diminutive of humus , moist earth, from the alluvial soil 
where the Hop spontaneously grows.) 
\ H. Ldpnlns, L. — Banks of streams, common northward, 
truly indigenous. July. Stem twining with the sun. 
3, CANNABIS, Tourn. Hemp. 
Flowers dioecious; the sterile in axillary compound racemes or 
panicles : sepals and stamens 5. Fertile flowers spiked-clustered, 
1-bracted : the calyx of a single sepal swollen at the base and 
folded round the ovary. Embryo simply curved. — A tall rough- 
ish annual, with digitate leaves of 5 - 7 linear-lanceolate coarsely 
toothed leaflets, the upper alternate ; the inner bark of very tough 
fibres. (The ancient name, of obscure etymology.) 
1- C. sativa, L. Waste places, escaped from cultivation, or 
naturalized in the vicinity of dwellings. June. 
Suborder III. URTICE^E. The Nettle Family proper. 
IJUTICA, Tourn. Nettle. 
Flowers monoecious or dioecious ; the sterile with 4 (rarely 5) 
sepals, and as many stamens ; the fertile with 4 or 2 separate se¬ 
pals, and no rudimentary stamens. Achenium oblong or ovate, 
flattish. Herbs armed with stinging hairs ; the flowers in axil- 
