Mizzou Public Hunting

sporophyte reproduction

sexual organs are grouped at the end of the caulidios or short side branches are surrounded by filidios
as involving, filidios periqueciales
may be hermaphroditic, monoecious or dioecious
often appear paraphyses juicy or multicellular hairs ending in spherical cells appear
antheridia and archegonia apendiculates
anterozoides are attracted chemotactically to the archegonium
Torture
peristome muralis sporophyte Development
transversalemte the zygote divides to form an embryo in the cell elongated
produce the embryo apical oblique septa forming a wedge-shaped apical cell apical cell
Digon suffers radial divisions into four quadrants, periclinal divisions differs by a layer of outer cells (anfitecio) and internal (endothecium)
endothecium outer layer is becomes usually in the arquesporio which split completely in spore mother cells (esporocitos)
endothecium internal cells are not involved in the formation of arquesporio (difference with liver), but form a line of sterile tissue, the columella columella
is surrounded by sporogenous sac that functions as nutrient conducting tissue


the bottom of the embryo, the haustorium, is fixed to the gametophytic tissue
the young sporophyte is protected by a sheath (embrioteca) formed from the belly of the archegonium by the tissues of the foot of the same tissue or even the embrioteca
caulidio eventually tears with the growth of the sporophyte, the top form the root cap, the bottom is the vagínula
mature capsule form special structures available to help eliminate and dispersal of spores in some mosses
conducting tissues may occur, hydroids , oblong or dead cells with thickened longitudinal walls and transverse inclined, there lingificación (tracheids of vascular plants) may appear
nutrient-conducting cells, leptoides, similar to the sieve elements, the side walls are often thickened and traversed by sieve pores with plasmodesmata, with nucellus and plastids
hydroids displayed in the center and externally leptoides central cord
mats, living cells, elongated, next to the hydroids, with thickened walls, serve to give strength (similar to collenchyma)
parenchyma cells next to the leptoides, no sieve pore
some simple cords are cords
leaf traces appear central cord attached to extend in the filidios
the foot of the sporophyte haustorium can be connected to the central cord of gametophyte, communicating its asexual reproduction

hydroids
the Mosses have a great power of regeneration and filidios caulidios
may originate new gametophytes, either directly or through the protonema stage
propagules may occur in the leaf axils and stem apices