






go TREES AND SHRUBS 
* Broussonetia. Tree with pistils and stamens separated; the male 
flowers in elongated clusters; female flowers ( on same tree) in globular heads" 
along with the bristly scales; mature ovary rising out of the calyx and forming 
a fleshy fruit; style 1. ral Be 
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Broussonetia papyrifera, Ventenat; is our only species. A native of | 
Japan; heart-shaped leaves entire or variously cut or lobed, rough on upper 
and downy on lower surface. Inner bark is used by the South Sea Islanders ay 
as a substitute for cloth. 
Celtis. Trees with alternate, simple leaves, and stipules which usually fall 
early; styles on long stigmas, diverging, and crowning the I- to 2-celled fruit, 
which, when mature, is round and berry-like; lobes of the calyx and stamens. 
5 or 6, * lower flowers mostly stamhinate and clustered, upper ones fertile and 
mostly solitary on a slender peduncle.” The AMERICAN HACKBERRY, Celtis 
occidentalis, Zinneus, is a native tree of middle size, with heart-shaped, 
taper-pointed, netted-veined leaves; fruit round and somewhat sweet. Also 
known as NETTLE-TREE. . 
Maclura. Male and female flowers on different trees, the former in elon- 
gated clusters, the latter crowded in a globular head, sepals 4, unequal; mature 
fruit a greenish or greenish-yellow ball the size of an orange. Hence the name 
of OSAGE ORANGE given to 
Maclura aurantiaca, Mzutfal/; our native, large, spiny tree, which has 
yellow wood and lance-shaped entire glossy leaves. From the Arkansas 
region, where it is called BoIs D’Arc. Here it is kept trimmed down to hedge 
size. 
Morus. Trees with the pistils and stamens on different flowers of the same 
tree and both forming elongated clusters; sterile flowers with 4 stamens; fertile 
flowers when ripe aggregated into a fleshy mass longer than, but somewhat 
resembling, a blackberry. 
Morus alba, Zixmeus. WHITE MULBERRY. Leaves smooth, oblique at 
base; fruit white, or light red, on slender stalks. Introduced from China 
during the “ silk-worm mania.” 
Morus nigra, Zizmmeus. BLACK MULBERRY. A middle-sized tree from 
Persia, with rough leaves and well-flavored dark-red fruit (round or nearly 
round) on short stalks. 
Morus rubra, 7inm@us. RED MULBERRY. Native tree in the Park, of 
small size, with roundish, heart-shaped, toothed leaves, which are rough on 
upper and downy on lower surface; fruit long, dark purple. A good timber 
so far as quality is concerned, but too small and scarce to be of any great 
service. 
Planera. Resembling Ulmus (see below), but has calyx only 4- to 5- 
lobed ; ‘ flowers appearing with the leaves in small axillary clusters ;’’ fruit a 
wingless nut. 
* Planera aquatica, Gmelin. PLANER-TREE. Native, with small, ovate 
leaves and a rough fruit, stalked in the calyx. 
