68th parallel north
The 68th parallel north is a circle of latitude that is 68 degrees north of the Earth's equatorial plane, in the Arctic. It crosses the Atlantic Ocean, Europe, Asia and North America.
At this latitude the sun is visible for 24 hours, 0 minutes during the summer solstice and Civil Twilight during the winter solstice.
This latitude is the boundary between the Southern and Arctic zones of Canada's National Topographic System, at which the longitude span of each map sheet doubles as one crosses this latitude going north.
Around the world
[edit]Starting at the Prime Meridian and heading eastwards, the parallel 68° north passes through:
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