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Apocynaceae

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Apocynaceae

  1. 1. APOCYNACEAE<br />Belotindos; Benemerito; Divino; San Andres <br />
  2. 2. BACKGROUND<br />^ * Greek for “away from dog” -> in reference to some taxa used as dog poison<br />^ 411 genera; 4650 species<br />^ Worldwide distribution, mostly present in tropical regions.<br />^ Economic importance: used as<br />cultivated ornamentals Nerium(oleander), Plumeria, Stapelia, and Vinca(periwinkle) <br />medicinal uses <br />
  3. 3. APOCYNACEAE<br />^ Belongs to the order Gentianales<br />^ often treated as two families,<br />a) Apocynaceae (Dogbane family) <br />b) Asclepiadaceae (Milkweed family)<br />^ *the latter now usually classified as subfamily<br />
  4. 4. CHARACTERISTICS<br />^ Plant habit -> lianas, trees, shrubs, or herbs <br />^ Stems -> succulent in some<br />^ Leaves -> simple, undivided, sometimes reduced, opposite, whorled, or rarely spiral, and is usually exstipulate<br />^ Inflorescence -> either a cyme, raceme, or of solitary flowers<br />
  5. 5. CHARACTERISTICS<br />^ Gynoecium -> syncarpous, often only apically (with ovaries distinct), with a superior or a rarely half inferiorovary<br />^ Ovules -> anatropous, unitegmic<br />^ Stigma(s) -> capitate, a single, broad fusion product in Asclepiadoids<br />^ K(5) C (5) A 5 or (5) G(2) [(-8)], superior, rarely half-inferior<br />
  6. 6. CHARACTERISTICS<br />^ Placentation -> apical and pendulous or marginal<br />^ Nectaries-> sometimes with 5 nectar glands or a disk at ovary base<br />^ Fruit -> variable and can be a berry, drupe, or follicle<br />^ Seeds -> endospermous<br />
  7. 7. Examples: <br />Plumeria(Frangipani)<br />
  8. 8. Examples: <br />Thevetia( Yellow Oleander) <br />Allamanda (Yellow Bell) <br />
  9. 9. PARTS: <br />
  10. 10. PARTS: <br />

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