The akakia (/əˈkækiə/, Greek: ἀκακία, literally or "not-wickedness". a- "not" or "against", kakia "wickedness"), previously known as an anexikakia ("enduring wickedness", "forgiveness", "forbearance", "patience") was a cylindrical purple silk roll containing dust which is depicted in wall mosaics and on coinage as being held by Byzantine emperors during ceremonies. It symbolized the mortal nature of all men. It possibly developed from the mappa, the cloth used by the Roman consuls to start the races at the hippodrome.
Sources
[edit]- Kazhdan, Alexander, ed. (1991), Oxford Dictionary of Byzantium, Oxford University Press, p. 42, ISBN 978-0-19-504652-6
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