What is a Hydrophytic Leaf?
Hydrophytes that are partially submerged have floating leaves with stomata through which gases can be exchanged as in land plants. Aquatic plants are plants that have adapted to living in aquatic environments (saltwater or freshwater). They are also referred to as hydrophytes or macrophytes.
What are distinguish features of Hydrophytic plants Explain with suitable diagram?
The root-system in hydrophytes is feebly evolved and root hairs and root cap are absent. In some floating plants such as Utricularia, Ceratophyllum, etc., no roots are evolved, and in submerged plants such as Vallisneria, Hydrilla, etc., water dissolved mineral salts and gases are absorbed by their whole surface.
What are the characteristics of Xerophytes?
Xerophyte survival characteristics:
- Thick cuticle.
- Stomatal closure.
- Reduction in # of stomata.
- Stomata hidden in crypts or depressions in leaf surface (less exposure to wind and sun).
- Reduction in size of transpiration surface (lower leaf only).
- Increased water storage.
What are Hydrophytic adaptations?
Hydrophytic plants have several adaptations that allow them to survive in water. For example, water lilies and lotus are anchored in the soil by shallow roots. The plants are equipped with long, hollow stems that reach the surface of the water, and large, flat, waxy leaves that allow the top of the plant to float.
What is Hydrophytic character?
Hydrophytes are aquatic plants that are especially suited for living in aquatic environments. In order to survive, a hydrophyte, also known as an aquatic macrophyte, must either be completely submerged in water, or in some cases be allowed to float on the surface of the water.
Which of the following is a Hydrophytic plant?
Correct Answer is: (A) Trapa Water lilies, sedges, crow foots are other important water plants. Trapa is one of the hydrophytic plant (hydrophytic plant meaning – plants which live in water and adjust their surrounding).
Which is a leaf character of a Xerophyte?
Leaves are very much reduced small scale like and sometimes modified in to spines to reduce the rate of transpiration. Lamina may be long narrow needle-like or divided in to many leaflets as Eg: Acacia. 2. Foliage leaves become thick fleshy and succulent or tough and leathery in texture.
What are Xerophytic leaves?
xerophyte, any plant adapted to life in a dry or physiologically dry habitat (salt marsh, saline soil, or acid bog) by means of mechanisms to prevent water loss or to store available water. Succulents (plants that store water) such as cacti and agaves have thick, fleshy stems or leaves.
What plants show Hydrophytic adaptations?
Hydrophytes are plants like water lilies that have adapted to living in watery conditions. They have little to no root systems and have leaves that often help in flotation. Xerophytes are the opposite of hydrophytes, and are plants adapted for living in extremely dry conditions with little access to water.
Which of the following is a Hydrophytic plants?
Hydrophytes are those plants which live in water and adjust with their surroundings. They either remain fully submerged in the water like Hydrilla, Valisineria, etc. or most of their body parts remain under the water like trapa, lotus, etc. water lilies, sedges, crow foots are other important water plants.
What are the characteristics of leaves in hydrophytes?
Leaves in hydrophytes: Ø In floating hydrophytes, the leaves are long, circular, green, thin and smooth. Ø In these plants, the upper surface of the leaf is exposed to air whereas the lower surface touches the water. Ø In Lotus, the petiole show indefinite growth and thus always keeps the leaves floating in the water.
What are the characteristics of free floating hydrophytes?
Free-floating hydrophytes consist of leaves that are elongated, slender, flattened, and the upper surface is coated with a waxy cuticle. Submerged hydrophytes contain leaves that are slender, translucent, elongated, fibrillar, straight and finely dissected. In amphibious plants, the leaves are of two kinds (submerged and aerial leaves).
What are the different types of hydrophytes?
Rooted submerged hydrophytes: Plants will be rooted in the soil (Vallisneria, Hydrilla, Potamogeton) (2). Free floating submerged hydrophytes (Utricularia, Ceratophyllum) (2). Floating hydrophytes: Ø These plants float freely on the surface of the water. Ø Here the plants will contact with both air and water. (3). Amphibious hydrophytes:
What is the function of stem in floating hydrophyte?
In rooted floating hydrophytes, a stem functions as a rhizome or runner. Free-floating hydrophytes consist of elongated, slender, flattened leaves. The leaf’s upper surface is coated with a waxy cuticle.