

ADJACENT TO HORTICULTURAL HALL. 79 

with stipules or whorled and without stipules, The madder used in dyeing 
comes from the root of Audia tinctorum. Other species are said to yield a 
dye. 
The single species with which we are concerned is 
Cephalanthus occidentalis, Zinneus. ButTron-Busu. Shrub with the 
dry fruit aggregated into a dense globular mass an inch in diameter and on a 
long slender stalk; slender style much protruded from the 4-lobed corolla, 
A common native, with lance-shaped or oblong leaves, 3 in a whorl. 
RUTACE. Rue Family. 
Leaves either simple or compound, with transparent puncture-like dots con- 
taining an aromatic oil; stamens as many or twice as many as the sepals, 
inserted on the receptacle or disk surrounding or elevating the ovary. Petals 
not united; leaves opposite or alternate, without stipules. The Orange is now 
placed in this order, which also contains many plants with medicinal properties. 
Phellodendron. Ovary maturing into a berry-like stone fruit with 5 seeds; 
flowers with pistils and stamens on different trees. 
“ Phellodendron Amurense, Ruprecht. Tree native of Eastern Siberia; 
leaves opposite, unequally pinnate ; leaflets 2 to 6 pairs, oblong-lanceolate and 
long-acuminate, 3 or 4 inches long, serrulate, very slightly villous on the mid- 
vein beneath, not punctate. Flowers green in axillary and terminal peduncu- 
late corymbs. Parts of the male flower in 5, the female flower unknown.”’— 
Sereno Watson. 
Zanthoxylum. Flowers with pistils and stamens on different plants; 
sepals (when present), petals, and stamens in the male flowers 4 or 5; pistils 
2 to 5, distinct, though the styles are slightly united. Shrubs or small trees 
with compound leaves, stems prickly. 
Zanthoxylum Americanum, J/i//er. NORTHERN PRICKLY ASH, TOOTH- 
ACHE-TREE. A prickly native shrub, with the yellowish-green flowers ap- 
pearing before the leaves, which have g to 11 ovate leaflets; calyx wanting; 
flowers in clusters in the axils ofthe leaves. ‘ Bark, leaves, and pods very 
pungent and aromatic.” 
* Zanthoxylum Carolinianum, Zamdert. SOUTHERN PRICKLY ASH. 
A small prickly tree growing along the coast from Virginia southward; leaf- 
lets 7 to 11, ovate-lanceolate, oblique; flowers in a flat-topped terminal cluster 
coming after the leaves; calyx present. 
Skimmia. An evergreen shrub from Japan, with perfect flowers and 
simple leaves. The species here introduced is 
Skimmia Japonica, 7hunderg; which has inconspicuous, white, fragrant 
flowers, and bright-red berries which remain through the winter. 

