THE WORLDWIDE VEGETABLES |
|
Edited by Ho Dinh Hai
Long An - Vietnam
Updated: 03/11/2015
Characteristics
1. Number of Species 2. Worldwide . 3. Reproduction . . . . . 4. Structure . . 5. Transport/ Classification |
Macroalgae (Seaweed)
(1) 5,000-6,000 (2) Produce spores . (3) Relatively simple and unspecialized Holdfast anchors plant to a hard surface; does not possess roots extending below the surface (4) Use diffusion to extract nutrients from the water . (5) Not plants or animals, but protists |
Seagrass
(1) 55-60 (2) Have separate sexes Produce flowers, fruits, and seeds (3) Evolved from terrestrial plants and have tissues that are specialized for certain tasks Possess roots, leaves, and underground stems called rhizomes that hold plants in place . . (4) Use roots and rhizomes to extract nutrients from the sediment; use leaves for extracting nutrients from the water (5) Are categorized as vascular, with a network of xylem and phloem that transport nutrients and dissolved gases throughout the plant |
1- Subfamily Hydrocharitoideae:
Genera: 1- Hydrocharis 2- Limnobium 2- Subfamily Stratiotoideae: Genus: 1- Stratiotes. |
3- Subfamily Anacharidoideae:
Genera: 1- Apalanthe 2- Appertiella 3- Blyxa 4- Egeria 5- Elodea 6- Lagarosiphon 7- Ottelia. |
4- Subfamily Hydrilloideae:
Genera: 1- Enhalus 2- Halophila 3- Hydrilla 4- Maidenia 5- Najas 6- Nechamandra 7- Thalassia 8- Vallisneria. |