Warsaw Scientific Society (Polish: Towarzystwo Naukowe Warszawskie; TNW) is a Polish scientific society based in Warsaw. It was established in 1907 as a continuation of the Society of Friends of Science to advance the sciences and arts and to publish scientific papers.
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Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction