Cannabaceae

F. Richard Stephenson (born Francis Richard Stephenson, 26 April 1941) is an Emeritus Professor at the University of Durham, in the Physics department and the East Asian Studies department. His research concentrates on historical aspects of astronomy, in particular analyzing ancient astronomical records to reconstruct the history of Earth's rotation. He has an asteroid named after him: 10979 Fristephenson.

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One thought on “Cannabaceae

  1. 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

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