Nanheudwy was a medieval commote of Wales considered part of the ancient Kingdom of Powys in the cantref of Swydd y Waun.[1] It was traditionally defined as the region between the valleys of the rivers Dee and Ceiriog with a mountain ridge running along its length.[2] Its name may be from "Nannau Dwy" meaning "Glens of the Dee".[2]
From 1160 it was a part of the principality of Powys Fadog until the dissolution of that realm in 1277 when it became a marcher lordship. In 1542 it was incorporated into the new administrative county of Denbighshire (historic) that had been constructed based on the English shire model. In 1974 it was transferred to the new county of Clwyd. This arrangement was maintained until 1996 when again it was returned to a reformulated Denbighshire.
References
[edit]- ^ Rees, William (1951). An Historical Atlas of Wales from Early to Modern Times. Faber & Faber.
- ^ a b Lloyd, John Edward (1912). A History of Wales from the Earliest Times to the Edwardian Conquest. Longmans, Green, and Co. p. 246. Retrieved 16 April 2015.
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