




























84 TREES AND SHRUBS 
long clusters and 6 or 7 stamens which are thrice longer than the petals; fruit 
smooth. In the Prodromus of De Candolle, under Pavia macrostachya, a 
synonyme, /’avia edulis, Poiret, is found, which is uncited in some o er " 
works. 7 
fEsculus Pavia, Zinneus. RED BucKEYE. A smooth-fruited native — 
shrub or small tree, with stamens no longer than the bright-red flower. It 
appears in some catalogues as Pavia rubra. 
Keelreuteria. A small tree from China, but hardy here; well known by 
its toothed, pinnate leaves; 5 sepals; 3 or 4 petals, each with a small notched 
scale on the inner surface of the claw; stamens 5 to 8, turned to one side; a 
3-lobed, 3-celled inflated pod; flowers small, yellow, in large compound clus- 
ters. Our only species is 
Keelreuteria paniculata, Zaxm. 
Negundo. AsH-LEAVED MAPLE, Box ELDER. Like the maple, save that 
the pistils and stamens are on different trees, and the leaves are of 3 or 5 leaf- 
lets. Our Eastern species is Negundo aceroides, A/énch; a small tree with 
light-green branchlets and hanging clusters of small greenish flowers which 
come with or before the leaves. The tree is a nuisance on well-kept grounds, 
from the leaves falling the summer through, but, owing to the ease with which 
it is cultivated, it is an important tree on our Western naked plains, as a per- 
sistent thriver in bad soils and a hardy substitute for something better. 
Staphylea. Shrubs with compound leaves. The perfect white flowers 
with 5 erect petals, sepals, and stamens, the last inserted on the disk lining the 
bottom of the calyx; styles 3; ovary 3-lobed and 3-celled, becoming a large, 
more or less inflated, several-seeded pod. 
Staphylea Bumalda, De Candolle. A Japanese shrub, with 3 oblong- 
pointed, roughish, toothed leaflets, which have bristle-points in the notches of — 
the leaflets; style hairy; mature fruit 2-horned. 
Staphylea pinnata, Zzzz@us. EUROPEAN BLADDER-NutT. Shrub distin- 
guished from the other species enumerated here by its 5 leaflets. 
Staphylea trifolia, Zz7@us. AMERICAN BLADDER-NuT. Native shrub, 
with 3 ovate, pointed, toothed leaflets and hanging clusters of white flowers ; 
pods large and inflated; bark greenish and striped. 
SAXIFRAGACE. Saxifrage Family. 
A large natural order, but hard to define. For our purpose the characters 
are: ‘* Ovaries partly or wholly united, and seldom any stipules; the herbs and 
most of the shrubs of the family have only as many or twice as many stamens 
and fewer styles or stigmas than there are petals or sepals. Flowers mostly” 
perfect.”—Gray, School and Field Book of Botany, p. 131. The group con- 
tains many handsome flowers, but, so far as utility goes, yields few remedial 
agents or woods of use in the arts. 
Deutzia. Shrubs from China and Japan, conspicuously distinguished by 
their abundance of pure-white perfect flowers; 5 lobes to the calyx and 5 

