Do All Ferns Are Heterosporous?
Do All Ferns Are Heterosporous? Ferns are mostly homosporous, though some are heterosporous. The heterosporous state is a more advanced condition, that seems to have evolved independently in several groups of plants. The haploid spores are formed by meiosis inside the sporangium. Are ferns heterosporous or Homosporous? Ferns are mostly homosporous, though some are heterosporous.