Transcript
Araceae
Terrestrial
Plant Habitat
Symplocarpus foetidus
(skunk cabbage)Arisaema triphyllum
(jack-in-the-pulpit)
Aquatic
Plant Habitat
Orontium aquaticum(golden club)
Lemna trisulca (star
duckweed)
Shrub
Plant Habit
Aglaonema commutatum
(Philippine evergreen)
Vine
Plant Habit
Syngonium podophyllum
(arrowhead vine)
Herb
Plant Habit
Anthurium cordatum(organ mountain
laceleaf)
Roots-often mycorrhizal, without root hairs
Stems-rhizoomatous, cormose, tuberous, or reduced-can be aerial, creeping, subterranean, or appressed-climbing-frequently scandent, rarely erect, hardened, and armed, or not differentiated into stem or leaf
Colocasia esculenta
Leaves- simple, bifacial, spiral, or distichous, sometimes highly divided or fenestrate (often exhibiting heteroblasty), with parallel, penni-parallel, or netted venation
- terminal, many-flowered spadix (with a sterile apical portion in some), usually
subtended by a prominent, often colored spathe, or reduced
Inflorescence
Flowers- small, bisexual or unisexual (female flowers often proximal, and the male distal on a spadix), actinomorphic, sessile, ebracteate, hypogynous, sometimes foul-smelling
(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 stipe portion 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).
Perianth-biseriate and 2+2 or 3+3 [4+4] or absent, apotepalous or basally syntepalous, a hypanthium absent
Stamens- 4, 6, or 8, distinct or connate, antitepalous in bisexual flowers; anthers are poricidal, longitudinal, or transverse in dehiscence
Gynoecium- 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
Fruit- typically a multiple of berries, less often dry,e.g., of utricles
Seeds- oily (sometimes also starchy) endospermous (rarely endosperm absent) with a sometimes fleshy seed coat
Jack-in-the-pulpit Arisaema atrorubens
-traditionally divided into several subfamilies
Araceae
Lemnaceae/Lemnoideae-small, thalloid to globoseaquatics with very reduced flowers
Calloideae-often found in marshy habitats in the northern hemisphere.
-no trichosclereids in flowers
-has only one genus: Calla
Calla palustris
Pothoideae-consists of four genera namely, Anthurium, Pothos, Pedicellarum and Pothoidium.
Anthurium andraeanum
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