closeup view of clusters of sporangia on stems of fertile spike like fronds of helminthostachys zeylanica fern.

closeip closeup closlminthostachys clusters elminthostachys endangered fern fertile found fronds frondso frondsof frondszeylanica helminthostachys helminthostachyszeylanica helminthostachyszeylanicafern herbaceous herherbaceous homagama lanka like native primitive rhizome spike spora sporangia spores sri ste stems thani view wel welherbaceous zeylanica zeylanicafern