xxxvi 
SYNOPSIS OF THE NATURAL ORDERS. 
42 Corolla scarious, regular, 4-parted. Stamens 4. 
Ixiii. I'lantaginacexH. 
Corolla coloured 43 
43 Corolla irregular. Stamens 2 Ix. Lentihulariacece. 
Corolla regular. Stamens 4 — 5, opposite to the seg- 
ments of the corolla Ixi. Primnlaceae. 
Corolla irregular. Stamens 4, didynamous. 
Ivi. OrobanchacecB. 
44 Stamens hypogynous, scarcely attached to the corolla, 
distinct xlvii. Ericacea. (EriceaB and Arbuteae). 
Stamens upon the corolla, filaments connected. 
xii. PolygcdacecE. 
Stamens upon the corolla, distinct 45 
45 Stamens 2. Corolla regular xlix. Oleacece. 
Stamens 2 or 4, and didynamous. Corolla irregular... 46 
Stamens 4 or 5, not didynamous 47 
46 Ovary 2-celled, not lobed ; placentas central. 
Ivii. Scrophulariacece. 
Ovary 2 — 4-celled, lobed lix. Verbeouicece. 
47 Cells of ovaiy each with 1 or 2 ovules 48 
Cells of ovary each with many ovules 49 
48 Fruit fleshy, not bursting. Stigmas sessile. 
xlviii. Aquifoliacece. 
Fruit a capsule, bursting. Styles manifest. 
liii. Convolvulaceob. 
49 Fruit a double follicle 1. Apocynacece. 
Fruit 2- or imperfectly 4-celled. Leaves alternate. 
Iv. Solanaceif. 
Fruit 1- or imperfectly 2-celled, 2-valved. Leaves 
opposite li. Geutianacece. 
Fruit 3-celled, 3-valved Hi. Polemoniacece. 
50 Flowers not in catkins 51 
Male flowers in catkins Ixxviii. Amentiferce. 
Flowers inconspicuous (rarely found). Plant formed 
of minute leafiike fronds, ftoating freely. 
xciv. Lemnacece. 
51 Ovary one, superior. Perianth sometimes wanting. ... 54 
Ovary inferior 52 
Ovaries many, distinct 53 
52 Stamens 1 or 8. Fruit not bursting, 1- or 4-celled, 1- 
or 4-secded. Limb of perianth of female flower 
very minute xxx. Haloragacece. 
Stamens 4 or 5. Fruit not bursting, 1 -celled, 1 -seeded. 
Limb of perianth manifest Ixix. Santalacea'. 
Stamens 4. Style filiform. Ovary 4-celled, many- 
.seeded xxix. Oiuigracece. 
