information about 3 endangered plants
1) WHISK FERN Class: Polypodiopsida Order: Psilotales Scientific name: Psilotum Kingdom: Plantae Higher classification: Psilotaceae Did you know: There are only two species in Psilotum and a hybrid between the two. ______________________________ Psilotum is a genus of fern -like vascular plants , commonly known as whisk ferns . It is one of two genera in the family Psilotaceae , the other being Tmesipteris . Plants in these two genera were once thought to be descended from the earliest surviving vascular plants , but more recent phylogenies place them as basal ferns, as a sister group to Ophioglossales . They lack true roots and leaves, the stems being the organs containing conducting tissue. There are only two species in Psilotum and a hybrid between the two. They differ from those in Tmesipteris in having ...