![](Https://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Trinity_House_obelisk%2C_Portland_Bill_-_geograph.org.uk_-_1099815.jpg/220px-Trinity_House_obelisk%2C_Portland_Bill_-_geograph.org.uk_-_1099815.jpg)
The Trinity House Obelisk, also known as the Trinity House Landmark, is a 19th-century obelisk located at Portland Bill, on the Isle of Portland, Dorset, England. Built as a daymark, it has been Grade II Listed since 1978.[1]
The obelisk was built in 1844 to warn ships off the coast of Portland Bill. It stands at the southern tip of the Isle of Portland, acting as a warning of the low shelf of rock extending 30 metres south into the sea.[2] The obelisk is made of Portland stone and is seven metres in height. It is inscribed "TH 1844" on its north face.[1] The monument was saved from threatened demolition in 2002 after Trinity House deemed it too expensive to maintain.[3][4]
References
[edit]- ^ a b Historic England. "Details from listed building database (1203105)". National Heritage List for England. Retrieved 21 January 2013.
- ^ "Portland Bill Lighthouse". Trinityhouse.co.uk. 18 March 1996. Archived from the original on 27 June 2015. Retrieved 21 January 2013.
- ^ "Portland Bill, Portland, Dorset". Geoffkirby.co.uk. Retrieved 21 January 2013.
- ^ "Meeting to hear of plans for Bill obelisk (From Dorset Echo)". Dorsetecho.co.uk. 17 October 2002. Retrieved 21 January 2013.
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