ORDER 45. THE MILKWORTS. 185 
§ Fruit covered with prickles. Petals 4 or 5, spreading....1, 2 
§ Fruit smooth. Petals 4, erect, 2 of them clawed... .3-5 
1 & Hippocasta’neum. Horse Chestnut. Leaves of 7, obovate leaflets. Petals 5. 
Fruit prickly. Panicles large, handsome. + 
2 #. glabra. Ohio Buckeye. Leaflets 5, oval or oblong. Petals 4, Tree ill- 
scented. Flowers yellowish. Secd mabogany-color. W. 
8 HE. fla‘va. Big Buckeye. A large tree, with pale-yellow flowers. Leaflets 5-7 
Petals very unequal, longer than stamens. W. 
4 2 Pa’via. Red-jl-wered B. Shrub 3-10f. Fils. large, red, in thyrse-lize racemes, 
Very handsome. S. + 
5 Z. parviflo’ra. White B. Shrub 2-8f. Petals 4, somewhat alike, spreading, 
thrice shorter than the stamens. 8. 
2. STAPHYLE’A. Bladder-nut. 
Flowers perfect. Sepals 5, colored like ‘the 5 petals. Stamens 5. 
Styles 8. Capsules 2 or 8, with thin, inflated walls.—Shrubs. 
1 S. trifo/lia: Ternate B. A handsome shrub, 6-8f. high. Leaves ternate, leaflets 
ovate. Racemes pendulous. Petals % 1 
Giliate below. Fruit very large, 8- & SNE of 4 
celled, inflated like a bladder. No Lx pe (4 
NGS 
QL wy 
Orver XLV. POLYGALA- «\#sSN 
CE. The Milkworts. ‘S/yX\ 
Plants without stipules, bearing very Y iY YW 
irregular flowers ; A 
stamens 4-8, diadelphous; SS] 
anthers opening at the top, 1-celled ; SS \ 
Jruit a flattened, 2-celled, 2-seeded “ 
capsule, free from the calyx. 2 ,, i 
Fig. 437. Polygala polygama: a, the radical \\ / if 
UN 
Zily 
WSSQ 
Zip 
WN VQ OOF 
flowers; 8, P. paucifolia; f the crest on the 
lower petal; 9, the stamens in 2 sets, and the 
style seen beneath the hooded lower petal. 
Fig. 440. The ovary and the style: 1, seed of 
P. sanguinea, with its 2-lobed caruncle; 2,seed Q 
of P. Nuttallii 5 
POLYG‘ALA. Milkwort. 
Sepals 5, persistent, 2 of them 
(wings) wing-shaped and colored, 
E> 
