Wie heißen die beiden Moos Untergruppen und wie sind sie gekennzeichnet?
Die Moose sind durch einen Generationswechsel gekennzeichnet, bei dem die geschlechtliche Generation (Gametophyt) gegenüber der ungeschlechtlichen (Sporophyt) dominiert. Der haploide Gametophyt ist die eigentliche Moospflanze, er kann lappig (thallos) oder beblättert (folios) sein.
Wie lange kann Moos ohne Wasser überleben?
Da zudem Spaltöffnungen in den Blättern fehlen, können Moose Wasserverlust durch Verdunstung kaum regulieren. Moose trocknen deshalb bei trockener Witterung schnell aus, überleben Trockenperioden aber problemlos in einem Ruhestadium. Einige Arten können sogar jahrelang ohne Wasser überleben.
Why are mosses important to the environment?
Ecologically, mosses break down exposed substrata, releasing nutrients for the use of more complex plants that succeed them. They also aid in soil erosion control by providing surface cover and absorbing water, and they are important in the nutrient and water economy of some vegetation types.
What is the difference between lichens and mosses?
Beard moss ( Usnea species), Iceland moss ( Cetraria islandica ), oak moss ( Evernia prunastri ), and reindeer moss ( Cladonia species) are lichens. Spanish moss ( Tillandsia usneoides) is an air plant of the pineapple family ( Bromeliaceae ). Club mosses are fern allies in the family Lycopodiaceae.
What are the different types of mosses?
Muscites, Protosphagnum, Palaeohypnum, and other fossil mosses are similar in structure to modern genera. Extant species include the valvate mosses (subclass Andreaeidae) and peat mosses (subclass Sphagnidae). The large subclass Bryidae constitutes most species of mosses, but the subclass Polytrichidae also has some important members.
How does sporangium reproduce in mosses?
The sporangium remains dependent on the gametophyte, to varying degrees, for water and nutrients. Mosses reproduce by branching and fragmentation, by regeneration from tiny pieces of leaves or stems, and by the production of spores.