Angiosperms

Angiosperms - I. Phylum Anthophyta: Angiosperms a. Large...

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I. Phylum Anthophyta: Angiosperms a. Large and heterosporous sporophyte, the microgamete (pollen) and the megagametophyte (embryo sac) are completely dependent on the sporophyte. We eat and use vegetative structures and reproductive structures. b. Two Classes: i. Monocotyledons : one cotyledon per embryo, flower parts in sets of 3, parallel venation in leaves, multiple rings of vascular bundles in stem, lack a true vascular cambium, fibrous root system. ii. Dicotyledons : 2 cotyledons, flower parts in sets of 4 or 5, netted venation in leaves, one ring of vascular bundles or cylinder of vascular tissue in stem, have a true vascular cambium, tap root system. c. i. Carpels and Stamen are fertile parts of the flower. ii. Androecium: male portion of the plant; rises above and inside the petals; consists of stamens, each of which has a filament and atop of which is located an anther ; inside anthers are pollen grains which contain male gametes. iii.
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Angiosperms - I. Phylum Anthophyta: Angiosperms a. Large...

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