DIVISION INTO FAMILIES AND GENERA. A} 
PLANTS WITH ALTERNATE LEAVES. 
Stamens 10, or a smaller number. 21. 
20. Stamens more than 10. 40. 
21. IBY. X ATX 
| bregular, butterfly-shaped ; fruit in a pod. 75. Baan Fam- 
Flowers regular or nearly so. 22. 
Flowers with one petal, petals united at base, or with no corolla. 23. 
Flowers with a corolla of many petals. 30. 
| Flows with a calyx, but no corolla. 24. 
Flowers with an evident calyx, and a corolla of one petal, or umited 
petals. 35. 
K3) 
2. 
23. 
( With 1 style or stigma; leaves simple. 25. 
b irsth 2 styles or stigmas, divergent; Jeaves simple. 28. 
oY Distls several ; leaves compound. Pricxty Asn Fammy. XXXV. 
Leaves with transparent dots; anthers opening by valves. 56. Cinnamon 
25. Famity. XII. 
Leaves not dotted ; anthers not opening by valves. 26. 
Fruit one-seeded. 27. 
°6. 9 Fruit 3-or more-seeded ; a drupe or berry. 29. 
Fruit crowned with a calyx. Sanpat-woop Faminy. Topeno. XI. 
27. Fruit not crowned with a calyx. 28. 
Stamens 5; atree. 55. Exum Faminy. X. 8. 
28. Stamens g: a shrub. Mezereum Famity. LeatHer woop. XIII. 
Leaves | broad and flat; stamens 4 or 5. 77. Bucxtuorn Faminy 
29, Lon es road and flat; stamens 6; fertile and sterile flowers on different 
| plants. Smivax Faminy. XLI. 
| Leaves crowded, heath- like. Crowsperry Faminy. XIV. 
[ 
Flowers with the calyx nearly obsolete. 31. 
30.4 Flowers with an evident calyx. 32. 
Fruit a diupe, crowned with the calyx; stamens alternate with the pe- 
tals. Cornus Faminy. XXII. 
Prat a berry, above the calyx ; stamens opposite the petals. 76. Vine 
Faminy. XXX. 
Stamens as many as the distinct petals and alternate with them. 33. 
Stamens as many as the distinct petals and opposite them. 38. 
Stamens twice as many as the petals, 36. 
| Stamens once, or several times, 3. 37. 
32. 
RANT Faminy XXIV. 
Calyx half adherent; capsule bony, 2-seeded. Wirca Hazen Famizy. 
XNUTY. 
oe free from the ovary; fruit few-seeded. 34. 
| Calyx free ; fruit many-seeded. 36. 
Stamens on afleshy disk; capsule berry-like. Starr-Trre. XXXII. 2. 
Stamens from the base of the calyx, or corolla, or from the receptacle. 37 
Anthers opening by pores. 36. 
Anthers not opening by pores. 57 or 65. 
oll adherent to the ovary and crowning the many-seeded berry. Cur- 
35. ; 
