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Araceae Family


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Araceae Family

  1. 1. Araceae<br />
  2. 2. Terrestrial<br />Plant Habitat<br />Symplocarpusfoetidus<br />(skunk cabbage)<br />Arisaematriphyllum<br />(jack-in-the-pulpit)<br />
  3. 3. Aquatic<br />Plant Habitat<br />Orontiumaquaticum<br />(golden club)<br />Lemnatrisulca(star duckweed)<br />
  4. 4. Shrub<br />Plant Habit<br />Aglaonemacommutatum<br />(Philippine evergreen)<br />
  5. 5. Vine<br />Plant Habit<br />Syngoniumpodophyllum<br />(arrowhead vine)<br />
  6. 6. Herb<br />Plant Habit<br />Anthuriumcordatum<br />(organ mountain laceleaf)<br />
  7. 7. Roots<br />-often mycorrhizal, without root hairs<br />
  8. 8. Stems<br />Colocasiaesculenta<br />-rhizoomatous, cormose, tuberous, or reduced<br />-can be aerial, creeping, subterranean, or appressed-climbing<br />-frequently scandent, rarely erect, hardened, and armed, or not differentiated into stem or leaf<br />
  9. 9. Leaves<br />- simple, bifacial, spiral, or distichous, sometimes highly divided or fenestrate (often exhibiting heteroblasty), with parallel, penni-parallel, or netted venation<br />
  10. 10. - terminal, many-flowered spadix (with a sterile apical portion in some), usually subtended by a prominent, often colored spathe, or reduced<br />Inflorescence<br />
  11. 11. Flowers<br />- small, bisexual or unisexual (female flowers often proximal, and the male distal on a spadix), actinomorphic, sessile, ebracteate, hypogynous, sometimes foul-smelling<br />(A) Early stage of development of the inflorescence showing the appendix (smooth upper portion) and the floral zone (lower portion with floral primordia). The arrow indicates the separation between the appendix proper and the basal stipeportion of the inflorescence. (B) floral portion of the inflorescence: B, bristle; M, male flower; F, female flower; arrows, atypical flowers; asterisk, nearly enclosed ovary. (C) Early stage of initiation of female flowers. (D) Development of the ovary wall (O) of female flowers (E) Close up of two atypical flowers (arrows). <br />
  12. 12. Perianth<br />-biseriate and 2+2 or 3+3 [4+4] or absent, apotepalous or basally syntepalous, a hypanthium absent<br />
  13. 13. Stamens<br />- 4, 6, or 8, distinct or connate, antitepalous in bisexual flowers; anthers are poricidal, longitudinal, or transverse in dehiscence<br />
  14. 14. Gynoecium<br />- syncarpous, with a superior ovary, 3 carpels, usually as many locules as carpels, style and stigma one and short or absent; placentation is variable; ovules are usually anatropous and bitegmic<br />
  15. 15. Fruit<br />- typically a multiple of berries, less often dry,<br />e.g., of utricles<br />
  16. 16. Seeds<br />- oily (sometimes also starchy) endospermous (rarely endosperm absent) with a sometimes fleshy seed coat<br />Jack-in-the-pulpit Arisaemaatrorubens<br />
  17. 17. -traditionally divided into several subfamilies<br />Araceae<br />
  18. 18. Lemnaceae/Lemnoideae<br /><ul><li>small, thalloid to globoseaquatics with very reduced flowers</li></li></ul><li>Calloideae<br />Calla palustris<br />-often found in marshy habitats in the northern hemisphere. <br />-no trichosclereids in flowers<br />-has only one genus: Calla<br />
  19. 19. Pothoideae<br />Anthuriumandraeanum<br />-consists of four genera namely, Anthurium, Pothos, Pedicellarum and Pothoidium.<br />