1. School of Sciences, Lautoka Campus Dicotyledonous families Cont
School of Sciences, Lautoka Campus Dicotyledonous families Cont. BIO509 Botany Lecture 32: Family Rutaceae (Citrus Family)

2. 15. Rutaceae • 158 – 161 Genera Rue or Citrus Family
• 1800/1900 species
Trees, shrubs, lianas or herb

3. Stem:
Some taxa have thorns
Leaves:
Simple, trifoliate, or pinnate, sometimes pinnatifid exstipulate, usually with punctate glands

4. Punctate Glands

5. Flowers Inflorescence Cyme, raceme or solitary
- Bisexual, actinomorphic and hypogynous
- Calyx is aposepalous or synsepalous

6. - Gynoecium is syncaprous with superior ovary
- Corolla is apopetalous or sym petalous
- Stamens are usually diplostamenous in two whorls, with staminodes in some taxa
- Anthers are longitudinal in dehiscence
- Gynoecium is syncaprous with superior ovary

7. Calodendrum capense

8. axile Ovules Anantropous or hemitroupous, bitegmic, two per carpel
Placentation
axile
Ovules
Anantropous or hemitroupous, bitegmic, two per carpel

9. - schizocarp, berry, drupe or hesperidium
Nectaries
Usually present as an annular disk at the base of ovary
Fruits
- schizocarp, berry, drupe or hesperidium

10. General Facts:
The Rutaceae family is commonly found in tropical regions . Economic importance
Includes fruits, herbs, timber trees, and ornamentals. The largest numbers are found in Africa and Australia, often in semiarid wood lands
Floral Formula:
K 4 – 5 [2 - 3]
C 4 - 5[0, 2 - 3]
A 8 – 10 - ∞]
G(4 - 5) [(1 - ∞)] , superior.

11. Sources: Internet/Google search Questions?