
Cycadophyte | Description, Taxonomy, Evolution, Characteristics ...
cycadophyte, any member of a diverse collection of mostly extinct primitive gymnospermous plants. Although some botanists prefer to restrict the term cycadophyte to the members of the …
Cycad | Description, Gymnosperm, Species, Examples, Uses, …
Cycad, any of the palmlike woody gymnospermous plants that constitute the order Cycadales. The order consists of three extant families, which contain about 10 genera and about 310 …
Cycadophyte - Ancient, Gymnosperms, Pollination | Britannica
Male sporophylls (microsporophylls) are spatulate organs bearing large pollen sacs (microsporangia) in clusters (sori) on their lower (abaxial) surfaces. Up to 200 cubic cm (12 …
Cycadophyta - an overview | ScienceDirect Topics
The Cycadophyta (also known as Cycadales), or cycads, are a relatively ancient group of plants that were once much more common than today and served as fodder for plant-eating nonavian …
Cycad - New World Encyclopedia
Cycads (division Cycadophyta) are an ancient group of seed plants characterized by a large crown of compound leaves and a stout, erect trunk up to seven meters (23 feet) high. They are …
Characteristics of Cycadophyta - Weekand
Aug 26, 2014 · Usually referred to as cycads, the Cycadophyta group is a collection of tropical and subtropical palm-like plants that have evolved on Earth for about 280 million years. …
Cycads - General Characteristics, Life Cycle, Evolution - JRank
The cycads are a relatively small phylum (Cycadophyta) in the plant kingdom Plantae. The cycads are considered to be gymnosperms, because they bear their seeds naked on modified leaves …
Cycad - San Diego Zoo Animals & Plants
DIVISION: Cycadophyta; CLASS: Cycadopsida; ORDER: Cycadales; FAMILY: Cycadaceae, Stangeriaceae, Zamiaceae; GENERA: 11; SPECIES: 185
cycads (Phylum Cycadophyta) - iNaturalist
Cycads /ˈsaɪkædz/ are seed plants with a long fossil history that were formerly more abundant and more diverse than they are today. They typically have a stout and woody (ligneous) trunk …
Cycadophyte - Root Structure, Evolution, Adaptations | Britannica
Cycadophytes probably had their origins among the progymnosperms of the Devonian Period (419.2 to 358.9 million years ago), possibly among a primitive long-extinct group of non-seed …
- Some results have been removedSome results have been hidden because they may be inaccessible to you.Show inaccessible results