Topmaking mills make wool top, a semi-processed product from raw wool. The process requires that the wool be scoured (washed) and combed and sorted. The longer fibers resulting from the process are called tops, and are in a form ready for spinning. To be closer to customers, some of the industry has moved from Australia, Europe and the US to China. Many American and British companies produce high quality wool top in from sheep wool and fiber; most work with the fleece from cleaning it to hand dying.
A topmaker is an old term for a person engaged in the process.
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