Magnoliophyta >
Ovules (and seeds) enclosed within carpels (fruits); the carpels bearing stigmas upon which the pollen lodges. Pollen produced in the anthers of stamens. Carpels and stamens usually surrounded by a perianth; the whole constituting a flower which may be uni- or bi-sexual (= angiosperms) Magnoliophyta
Flowers usually 3-merous. Leaf venation usually parallel. Embryo with 1 cotyledon Plants usually herbaceous rarely woody and then ± unbranched) Liliopsida
Ovary inferior
Partially or wholly submerged herbs, sometimes marine Hydrocharitaceae
Marine submerged plants with creeping stems Halophila
Leaves with fine hairs on the lower surface, with 6–9 pairs of lateral veins. Plants monoecious. Spathe with 1 male and 1 female flower. On sand in protected marine habitats Halophila decipiens