Pedras Salgadas (Portuguese pronunciation: [ˈpɛðɾɐʃ salˈɣaðɐʃ]) is a small spa town in the district of Vila Real, in Northern Portugal, located approximately 37 km north of the district capital of Vila Real. It is famous for its mineral waters. There are several small hotels in the area, which cater to tourists who want to relax in the green countryside and benefit from the spa facilities located there. In 2010 the Portuguese beer and water company Unicer opened a brand new spa complex in the town. Pedras Salgadas is located in the municipality of Vila Pouca de Aguiar. Both are located on N2, the national road linking Chaves with Vila real. The new four-lane A24 highway passes a few kilometers west of the town and is connected by a feeder road. The railway was closed in the nineteen eighties and the abandoned railway bed has now been tarmacked for use as a cycling and walking path. This path extends to Vila Pouca de Aguiar, at a distance of about 10 kilometers.
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