http://www.theplantlist.org/browse/P/ WebThe whisk ferns and Tmesipteris are homosporous pteridophytes examples. They can, however, be heterosporous, meaning that two types of spores can be formed. Thus, the heterosporous pteridophytes are those which produce two types of spores. Sporophylls are sporangia-bearing leaves. The tip of the leaves folds inwards to protect the most ...

Phylum Pteridophyta: Characteristics, Classification

WebA heterosporous life history occurs in some pteridophytes and in all seed plants. It is characterized by morphologically dissimilar spores produced from two types of sporangia: microspores, or male spores, and megaspores (macrospores), or female spores. In pteridophytes, megaspores are typically larger than microspores, but the opposite is … WebGive examples. Solution: Pteridophytes are terrestrial plants which do not bear seeds or flowers but have well-developed vascular tissues (xylem and phloem). These plants have a well-differentiated plant body and are considered to be one of the most diverse groups of land plants. Ferns and horsetails are common examples of pteridophytes. crushless era

Pteridophytes - Characteristic features, Classification, Economic ...

WebPteridophytes grow as herbs, trees, epiphytes, and floating plants, inhabiting both terrestrial and freshwater environments. Many examples of common pteridophytes … WebFeb 10, 2024 · Apospory occurs in pteridophytes in cases of improper growth conditions, and lack of nutrients. For example, if there is a loss of minerals in the soil, or in case of improper sunlight and water availability, these plants undergo apospory to reproduce. WebPteridophytes are vascular plants with a distinct leaf structure and no obvious stem. They are the earliest recognised plant group and have evolved independently from vascular … bul armory 1911 government price