This is a list of viceroys (or lieutenants) of the Kingdom of Aragon.
- Alonso de Aragón, bishop of Zaragoza 1517–1520
- Juan de Lanuza y Torrellas 1520–1535
- Beltrán de la Cueva, 3rd Duke of Alburquerque 1535–1539
- Pedro Manrique de Luna y de Urrea, count of Morata de Jalón 1539–1554
- Diego Hurtado de Mendoza y de la Cerda, prince of Melito 1554–1564
- Ferran d'Aragón i de Gurrea, Bishop of Zaragoza 1566–1575
- Artal de Aragón y Luna, count of Sástago 1575–1588
- Iñigo de Mendoza y de la Cerda y Manrique de Luna, marquis of Almenara 1588
- Miguel Martinez de Luna y Mendoza, count of Morata de Jalón 1592–1593
- Diego Fernández de Cabrera Bobadilla y Mendoza, count of Chincón 1593–1601
- Beltrán de la Cueva y Castilla, duke of Alburquerque 1601–1602
- Ascanio Colonna, cardinal 1602–1604
- Gastón de Moncada, 2nd Marquis of Aitona 1604–1610
- Diego Carrillo de Mendoza, 1st Marquis of Gelves 1617–1620
- Fernando de Borja y Aragón, count of Mayalde 1621–1632
- Girolamo Carraffa e Carrascciolo, marquis de Montenegro 1632–1636
- Pedro Fajardo de Requesens de Zuñiga y Pimentel, marquis of Los Velez 1635–1638
- Francesco Maria Carafa, Duke of Nocera 1639–1640
- Enrique de Pimentel y Moscoso, marquis of Tavara 1641
- Gian Giacomo Teodoro Trivulzio, prince of Trivulzio, cardinal 1642–1645
- Bernardino Fernández de Velasco, 6th Duke of Frías 1645–1647
- Francisco de Melo, count of Assmar 1647–1649
- Francisco Fernández de Castro Andrade de Portugal e Legnano de Gattinara, count of Lemos and count of Andrade 1649–1653
- Fabrizzio Pignatelli, prince of Nòia, duke (married with the duchess) of Monteleone 1654–1657
- Niccolò Ludovisi, prince of Piombino and Venosa 1659–1662
- Ferran de Borja d'Aragón i Barreto, count of Mayalde 1662–1664
- Francisco de Idiáquez de Butrón Mogica y de Álava, duke of Ciudad Real 1664–1667
- Ettore Pignatelli d'Aragona e Cortés, duke (married with the duchess) of Terranova, prince of Noia, duke of Moteleone 1668
- Pedro Pablo Ximénez de Urrea Fernández de Heredia y Zapata, count of Aranda 1668–1669
- Juan Jose de Austria 1669–1676
- Lorenzo Onofrio Colonna e Gioeni-Cardona, Prince of Paliano 1678–1681
- Jaime Fernández de Hixar-Silva Sarmiento de la Cerda, duke of Hixar 1681–1687
- Carlo Antonio Spinelli, prince of Cariati, duke of Seminara 1688–1691
- Baltasar de los Cobos Luna Sarmiento de Mendoza Zúñiga y Manrique, marquis of Camarasa 1692–1693
- Antonio Ibáñez de la Riva Herrera, Archbishop of Zaragoza 1693–1693
- Juan Manuel Fernández Pacheco Cabrera y Bobadilla, marquis of Villena and duke of Escalona 1693–1695
- Domenico del Giudice e Palagno, duke of Giovenazzo, prince of Cellamare 1695
- Baltasar de los Cobos Luna Sarmiento de Mendoza Zúñiga y Manrique, marquis of Camarasa 1696–1699 (second time)
- Baltasar Manrique de Mendoza de los Cobos y Luna, 5th Marquess of Camarasa 1699–1702
- Antonio Ibáñez de la Riva Herrera, Archbishop of Zaragoza 1702–1707 (second time)
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