WebJun 24, 2024 · Do you think heterospory has some evolutionary significance in plant kingdom? Ans: In majority of the pteridophytes all the spores are of similar kinds, such plants are called hom’osporous. Genera like Selaginella, Salvirtia, Marsilea and Azolla which produce two kinds of spores, macro (large) and micro (small) spores are known as … WebFor the first time distinct heterospory (structural as well as functional) is evident in pteridophytes; but out of several hundred forms in the group, only 9 genera (Selaginella, …
What is the Difference Between Homosporous and …
WebFor the first time distinct heterospory (structural as well as functional) is evident in pteridophytes; but out of several hundred forms in the group, only 9 genera (Selaginella, Isoetes, Stylites, Marsilea, Pilularia, Regnellidium, Salvinia, Azolla, and Platyzoma) are heterosporous. Heterospory has been of considerable interest because of its ... WebSome "heterosporous" pteridophytes give rise to two types of spores: large, female spores called megaspores and small male spores called microspores. campsite photos white lake state park
Difference Between Homosporous and Heterosporous Pteridophytes
WebJul 25, 2024 · Like gymnosperms, many pteridophytes show heterosporous conditions. Antherozoids of some gymnosperms are ciliated like those of pteridophytes. Differences … WebPteridophytes are mainly homosporus but some are heterosporous also like seleginella, salvinia, marcilea ,azola. homosporus means they produce identical spores, where as in … WebAnswer (1 of 2): Thallophytes are lower primitive plants mostly adopt asexual reproduction by fragmentation ,aplanospore ,akinites ,parthenospore. Sexual reproduction is rare are … campsite river tees middlesbrough