Moreover, the sporophytes are dependent on the gametophyte for nutrition and develops within the female sex organ (archegonia). Free learning resources for students covering all major areas of biology. The main characteristics of pteridophytes are: Pteridophytes are mostly terrestrial sometimes growing in the moist and shady regions. 1. Fern in the largest biology dictionary online. The four basics characteristics of ferns are that they have true leaves, robust growth, they live in harsh conditions, and their spores are produced on the underside of the leaves. Whereas some are aquatic like Azolla. General structure. A very few plants of this group grow under dry condition. The following features are present in most: Leaves, called fronds, are megaphylls. The ferns are a numerous and important group of vascular plants, with about 12 000 species growing throughout the world. General characteristics. They range from small epiphytes to tree ferns 20 m high to floating aquatics. In some ferns, a leaf section rolls over and protects the sori. Ferns are seedless vascular plants of humid tropics and temperate areas. Mosses also require water as a medium for completing their life cycle. Ferns are described as a monophyletic group of about 9000 species (compare with the estimate of over 12 000 given in Chapter 14) with several shared characteristics. They range from small epiphytes to tree ferns 20 m high to floating aquatics. More than 20,000 species of ferns live in environments ranging from tropics to temperate forests. Salvinia. Many ferns have a perennial rhizome, either underground or growing along a branch if epiphytic, with roots attached. Essential Features of Ferns | Plant Kingdom. Many ferns have a perennial rhizome, either underground or growing along a branch if epiphytic, with roots attached. About ferns By Jerald Pinson. 2. Pteridophyta. Ferns and fern allies are Pteridophytes. They are considered the most advanced seedless vascular plants and display characteristics commonly observed in seed plants. Unlike the gymnosperms and angiosperms, the ferns' gametophyte is also a free-living organism. Angiosperms have diverse characteristics. Ferns can produce baby ferns at proliferous frond tips. Once the baby fern roots itself, it can survive separate from the parent plant. It groNA in fresh water ponds and ditches in Punjab. Like other Pteridophytes, ferns do not have flowers or seeds; they reproduce by spores. Most have rhizomes with roots and some have a trunk. Accounts are presented of 37 fern families in 11 orders within four classes: Psilotopsida, Equisetopsida, Marattiopsida and Polypodiopsida. There are more than 13,000 species. In Philippines, a fern called “nito” is made into anahaw fans, native headwear (salakot) and ladies handbags. A very few plants of this group grow under dry condition. The proliferous baby plant is genetically identical to … Characteristics of Class Filicineae. It is common in the temperate regions. Some characteristics of ferns are: they are vascular plants, they have roots and leaves (called fronds) and in some cases they have true stems. Biology Article.

Like all other vascular plants, ferns have a life cycle referred to as alternation of generations, characterized by a diploid sporophytic and a haploid gametophytic phase. General characteristics: Ferns are a large group of plants occurring throughout the world. The vegetative plant is a sporophyte.

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