Euphyllophytina, the euphyllophytes, is a taxon – sometimes unranked, sometimes placed at the informal rank of subdivision – within the tracheophytes Vascular plants are those plants that have lignified tissues for conducting water, minerals, and photosynthetic products through the plant. Vascular plants include the ferns, clubmosses, flowering plants, conifers and other gymnosperms. Scientific names for the group include Tracheophyta and Tracheobionta, but neither name is very widely used.[. It is sister to subdivision Lycopodiophyta The Division Lycopodiophyta is a tracheophyte subdivision of the Kingdom Plantae. It is the oldest extant (living) vascular plant division at around 410 million years old,:99 and includes some of the most "primitive" extant species. These species reproduce by shedding spores and have macroscopic alternation of generations, although some. Euphyllophytina contains the two groups Spermatophytes The spermatophytes (also known as phanerogams) comprise those plants that produce seeds. They are a subset of the embryophytes or land plants. The living spermatophytes form five groups: (seed plants) and Monilophytes A fern is any one of a group of about 12,000 species of plants. Unlike mosses, they have xylem and phloem . They have stems, leaves, and roots like other vascular plants. Ferns do not have either seeds or flowers (they reproduce via spores) (ferns), as well as a number of extinct fossil taxa. The division of the extant tracheophytes into three monophyletic lineages is supported in multiple molecular studies[1][2][3].
References
- ^ Smith, A. R., K. M. Pryer, et al. (2006). "A classification for extant ferns." Taxon 55(3): 705-731
- ^ Pryer, K. M., H. Schneider, et al. (2001). "Horsetails and ferns are a monophyletic group and the closest living relatives to seed plants." Nature 409(6820): 618-22
- ^ Pryer, K. M., E. Schuettpelz, et al. (2004). Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences 1, Botanical Soc America. 91: 1582-1598
Categories: Plants Categories: Eukaryotes | Botany | Physical objects