Bryophytes
(mosses)-
Moss characteristics
-Multicellular rhizoid
- Radial symmetry
- Radial symmetry
The adaptions for moss to live on land are;
-Cuticle, which is a waxy coating that prevents evaporation to aerials part of plants.
-Stomata, which are small pores on the underside of the leave that open and close to control movements of water,carbon dioxide, and oxygen.
- Gametangia (container for gametes), They are developed and released into the water, embroyo develops there and on land all these cells are in danger of drying out.
-Cuticle, which is a waxy coating that prevents evaporation to aerials part of plants.
-Stomata, which are small pores on the underside of the leave that open and close to control movements of water,carbon dioxide, and oxygen.
- Gametangia (container for gametes), They are developed and released into the water, embroyo develops there and on land all these cells are in danger of drying out.
Different types of mosses
![Picture](/uploads/3/1/0/6/31063215/5598582.jpg?246)
This is the most commonly seen moss in the Pacific Northwest, This is the Eurhynchium Praelongum. Its the moss that is seen in our backyards.
![Picture](/uploads/3/1/0/6/31063215/2188107.jpg?233)
This is the Scleropodium Touretii moss, according to the OSU plant website this moss has a frequency of 40% in the Pacific Northwest.
![Picture](/uploads/3/1/0/6/31063215/4160351.jpg?250)
This is the Funaria hygrometrica, Its a type of water moss that grows in damp places.
![Picture](/uploads/3/1/0/6/31063215/7344333.jpg?250)
This is the Atrichum Angustatum, It is usually yellowish-green. Its usual height is about 2 cm tall.
![Picture](/uploads/3/1/0/6/31063215/9886105.jpg?250)
This is the hedwigia ciliata, This type of moss grows on concrete. It can live directly in the sun or in the soil in the shade.
Moss Structure
Moss structure parts:
Rhizoid- rootlike filament by which mosses and fern gametophytes attach to the substratum and absorb nourishment
Leaf- usually a green flattened lateral structure attached to a stem
Capsule- a dry dehiscent fruit, composed of two or more carpels
Calyptra- a hood or hoodlike part as the lid of the capsule
Rhizoid- rootlike filament by which mosses and fern gametophytes attach to the substratum and absorb nourishment
Leaf- usually a green flattened lateral structure attached to a stem
Capsule- a dry dehiscent fruit, composed of two or more carpels
Calyptra- a hood or hoodlike part as the lid of the capsule
What is a sporophyte?
![Picture](/uploads/3/1/0/6/31063215/9302816.jpg?167)
The sporophyte is the diploid stage in the life cycle of a plant. It produces spores by meiosis.