Overview
Taxonomy
The Infraphylum Radiatopses is a member of the Subphylum Euphyllophytina. Here is the complete "parentage" of Radiatopses:
- Domain: Eukaryota
Whittaker & Margulis,1978 - eukaryotes
- Kingdom: Plantae
Haeckel, 1866
- Subkingdom: Viridaeplantae
Cavalier-Smith, 1981 - Green Plants
- Phylum: Tracheophyta
Sinnott, 1935 Ex Cavalier-Smith, 1998 - Vascular Plants
- Subphylum: Euphyllophytina
- Infraphylum: Radiatopses Kenrick & Crane, 1997
- Subphylum: Euphyllophytina
- Phylum: Tracheophyta
Sinnott, 1935 Ex Cavalier-Smith, 1998 - Vascular Plants
- Subkingdom: Viridaeplantae
Cavalier-Smith, 1981 - Green Plants
- Kingdom: Plantae
Haeckel, 1866
The Infraphylum Radiatopses is further organized into finer groupings including:
- Class (8): Cycadopsida · Ginkgoopsida · Gnetopsida · Lagenostomopsida · Liliopsida · Magnoliopsida · Pinopsida · Pteridospermopsida
Classes
Cycadopsida
Cycads are a group of characterized by a large crown of compound leaves and a stout trunk. They are evergreen, gymnospermous, dioecious plants having large pinnately compound leaves. They are frequently confused with and mistaken for palms or ferns, but are related to neither, belonging to the division Cycadophyta. [more]
Ginkgoopsida
A Class in the Kingdom Plantae. [more]
Gnetopsida
The division Gnetophyta or gnetophytes comprise three related families of woody plants grouped in the gymnosperms. The gnetophytes differ from other gymnosperms in having vessel elements as in the flowering plants. [more]
Lagenostomopsida
Liliopsida
Magnoliopsida
Pinopsida
The conifers, division Pinophyta, also known as division Coniferophyta or Coniferae, are one of 13 or 14 level taxa within the Kingdom Plantae. Pinophytes are gymnosperms. They are cone-bearing seed plants with vascular tissue; all extant conifers are woody plants, the great majority being trees with just a few being shrubs. Typical examples of conifers include cedars, douglas-firs, cypresses, firs, junipers, kauris, larches, pines, redwoods, spruces, and yews. The division contains approximately eight families, 68 genera, and 630 living species. Although the total number of species is relatively small, conifers are of immense ecological importance. They are the dominant plants over huge areas of land, most notably the boreal forests of the northern hemisphere, but also in similar cool climates in mountains further south. While tropical rain forests have more biodiversity and turnover, the immense conifer forests of the world represent the largest terrestrial carbon sink, i.e. where carbon is bound as organic compounds. They are also of immense economic value, primarily for timber and paper production; the wood of conifers is known as softwood. [more]
Pteridospermopsida
More info about the Class Pteridospermopsida may be found here.
Sources
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