Hasan Corso (born Pietro Paolo Tavera) was the mayor of Algiers and caliph of Salah Rais.
Corso was born on the island of Corsica. When he was five years old, he was taken away to Istanbul, and became a member of the janissaries. He was giving military education and educated in the Muslim religion and Turkish language. The Turkish gave him the name Hassan Corso, and sent him to Algiers. He rapidly rose through the janissary ranks and earned the title of Agha. One of his principal lieutenants Ali "Sardo" was a European convert to Islam as well, from the neighbouring island of Sardinia.[1]
In 1549, he became mayor of Algiers and caliph of Salah Rais. He was murdered at the age of 38 in August 1556, on the orders of a pasha sent from Istanbul.[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