Editing Tree fern (section)

==Uses==
Tree-ferns have been cultivated for their beauty alone; a few, however, were of some economic application, chiefly as sources of starch. These include the ''[[Sphaeropteris excelsa]]'' of [[Norfolk Island]] that was threatened with extinction for the sake of its [[sago]]-like [[pith]], which was eaten by pigs. It is now widely cultivated as an ornamental tree, although there is only one small wild population on Norfolk Island.<ref name="Norfolk Island National Park 2023">{{cite web |title=Norfolk Island Plants |url=https://parksaustralia.gov.au/norfolk/discover/plants/ |website=Norfolk Island National Park |publisher=Australian Government Parks Australia |access-date=6 April 2023}}</ref> ''[[Sphaeropteris medullaris]]'' (mamaku, black tree fern) also furnished a kind of sago to people living in New Zealand, Queensland and the Pacific islands. A [[Java]]nese species of ''Dicksonia'' (''D. chrysotricha'') furnishes silky hairs, which were once imported as a [[Antihemorrhagic#Styptics|styptic]], and the long silky or wooly hairs, abundant on the stem and frond-leaves in the various species of ''Cibotium'' have not only been put to a similar use, but in the [[Hawaiian Islands]] furnished wool for stuffing mattresses and cushions, which was formerly an article of export.<ref name="EB1911">{{EB1911|inline=y|wstitle=Tree-Fern|volume=27|page=235}}</ref>