| 1. | More than 80 % of the species belong to the Rubiaceae family.
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| 2. | All coffee plants are classified in the large family Rubiaceae.
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| 3. | Gynoecium consists of inferior ovary, also characteristic of Rubiaceae.
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| 4. | The Rubiaceae consist of terrestrial and predominantly woody plants.
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| 5. | Larvae have been recorded from Loganiaceae and Rubiaceae species.
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| 6. | All six plants known to cause gousiekte are members of the Rubiaceae family.
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| 7. | Heterodistyly is another mechanism to avoid inbreeding and is widely present in the Rubiaceae family.
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| 8. | Unisexual flowers also occur in Rubiaceae and most taxa that have this characteristic are dioecious.
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| 9. | Petioles of opposite leaves fuse at base to form interpetiolar stipules, characteristic of Rubiaceae.
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| 10. | The larvae feed on " Faramea occidentalis " and probably other Rubiaceae species.
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