These plants lack the vascular tissue system needed for transporting water and nutrients. Class I - Only the moss, liverwort, and hornwort plants are nonvascular. A). In seedless non-vascular plants, or bryophytes (mosses), the haploid gametophyte is larger than the sporophyte (the plant structure that you see is the gametophyte); this is a gametophyte-dominated life cycle. Q. Spore cases of ferns are located on the underside of fronds. Water is still required for fertilization of seedless vascular plants, and most favor a moist environment. Angiosperms and gymnosperms are vascular land plants that reproduce by seeds. [citation needed] Mosses and leafy liverworts have structures called phyllids that look like leaves, but are not true leaves because they are single sheets of cells with no internal air spaces, no cuticle or stomata and no xylem or phloem. Gymnosperms are primitive plants that produce seeds but not flowers or fruit. Plants in both divisions exhibit alternation of generations. A. Pollen Represents The Mature Multicellular Male Gametophyte While Spores Are Unicellular Haploid Cells. The plants in Division Pteridophyta are seedless. The angiosperm vs gymnosperm difference comes down to how these plants reproduce. Wiki User March 11, 2011 5:03AM. Also gnetophyta, genus ephedra. Related Questions. Non-vascular plants, or bryophytes, include the most primitive forms of land vegetation.These plants lack the vascular tissue system needed for transporting water and nutrients. You should also know that the nonvascular plants do not have vascular tissue or seeds, however, they do have a stomata, a protected embryo, and most have a waxy cuticle. vascular plants) and those that do not have vascular systems. Earliest Vascular Plants: The oldest fossilized vascular plant Cooksonia was discovered in both Europe and North American Silurian rock. Their gametes are produced mitotically by a gametophyte (n) that lives independently. The angiosperm vs gymnosperm difference comes down to how these plants reproduce. Pteridophytes (ferns and lycophytes) are free-sporing vascular plants that have a life cycle with alternating, free-living gametophyte and sporophyte phases that are independent at maturity. In seedless vascular plants, the sporophyte became the dominant phase of the lifecycle. These forests gave rise to the extensive coal deposits that gave the Carboniferous its name. yes they both do. The seedless vascular plants do not have this protection. Wiki User October 04, 2012 8:12PM. Seedless vascular plants reproduce by... Seedless Vascular Plants DRAFT. Seed-free vascular plants have used "pollen". They are heterosporous however they do use a type of pollen. The sporophyte is attached to and dependent on the gametophyte. ... Pollen cases. Non-vascular plants do not have a wide variety of specialized tissue types. Especially concerning equisetum. SURVEY . Ferns are seedless vascular plants. answer choices . Related Questions. Angiosperm seeds are … They do not make flowers or fruits though, so their seeds are unprotected. Class II - The next group are vascular but seedless - they do not produce pollen but still rely on sperm swimming through a film of water in the gametophyte life stage. 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