In geography, a dry point is an area of firm or flood-free ground in an area of wetland, marsh or flood plains. The term typically applies to settlements, and dry point settlements were common in history.
In the United Kingdom extreme examples of dry point settlements include Glastonbury, situated on a low hill in the marshy, and once frequently flooded, Somerset Levels, and Wareham in Dorset surrounded by flood plains to the west and Poole Harbour to the east.
A dry point has the advantages of flood protection, fertile soil (due to previous floodings which would have deposited silt on the land) and fairly flat land which is ideal for agriculture and building.
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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