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The species uses an 'air gun' dispersal mechanism, where spores are explosively discharged from the capsule by built-up air pressure (approximately 5 x 10 5 Pascals) during warm, dry conditions. S. squarrosum ' s large capsules are particularly effective at this dispersal method, shooting spores higher into the air than smaller-capsuled species ...
Sphagnum is a genus of approximately 380 accepted species [2] [3] of mosses, commonly known as sphagnum moss, also bog moss and quacker moss (although that term is also sometimes used for peat). Accumulations of Sphagnum can store water, since both living and dead plants can hold large quantities of water inside their cells; plants may hold 16 ...
The smooth spores measure 24–27 μm in diameter [7] and are produced in greater abundance than in other Sphagnum species. [ 13 ] The species releases spores through an 'air-gun' mechanism, launching them 15 cm (5.9 in) high at speeds up to 3.6 m (12 ft) per second (about 8 miles per hour).
Polytrichopsida includes 23 genera, and Bryopsida includes the majority of moss diversity with over 95% of moss species belonging to this class. The Sphagnopsida, the peat-mosses, comprise the two living genera Ambuchanania and Sphagnum, as well as fossil taxa. Sphagnum is a diverse, widespread, and economically important one. These large ...
Splachnaceae is a family of mosses, containing around 70 species in 6 genera. [1] Around half of those species are entomophilous, using insects to disperse their spores, a characteristic found in no other seedless land plants. [2] Many species in this family are coprophilous, growing exclusively on animal faeces or carrion. [3]
Hygromorphy is a common mechanism of seed dispersal as the movement of dead tissues respond to hygrometric variation, [11] e.g. spore release from the fertile margins of Onoclea sensibilis. Movement occurs when plant tissue matures, dies and desiccates, cell walls drying, shrinking; [ 12 ] and also when humidity re-hydrates plant tissue, cell ...
Historically both lycophytes and monilophytes were grouped together as pteridophytes (ferns and fern allies) on the basis of being spore-bearing ("seed-free"). In Smith's molecular phylogenetic study the ferns are characterised by lateral root origin in the endodermis , usually mesarch protoxylem in shoots, a pseudoendospore, plasmodial tapetum ...
Sporogenesis is the production of spores in biology.The term is also used to refer to the process of reproduction via spores. Reproductive spores were found to be formed in eukaryotic organisms, such as plants, algae and fungi, during their normal reproductive life cycle.