For the presidency of Franklin D. Roosevelt, see:
- Presidency of Franklin D. Roosevelt, first and second terms (1933–1937 and 1937–1941), as U.S. president
- Presidency of Franklin D. Roosevelt, third and fourth terms (1941–1945 and January–April 1945), as U.S. president
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