| 词条 | Psilotum nudum |
| 释义 |
| image = Psilotum.jpg | genus = Psilotum | species = nudum | authority = (L.) P.Beauv. | synonyms =
| synonyms_ref = [1] }}Psilotum nudum, known as the whisk fern, is a fernlike plant. Like the other species in the order Psilotales, it lacks roots. It is found in tropical Africa, Central America, tropical and subtropical North America, South America,[1] tropical Asia, Australia, Hawaii, southern Japan, Lord Howe Island, New Zealand, with a few isolated populations in SW Europe ("Los Alcornocales", Spain, Cádiz province).[2][3] Its name, Psilotum nudum, means "bare naked" in Latin, because it lacks most of the organs of typical vascular plants, as a result of evolutionary reduction. In tropical areas, this plant is often epiphytic, whilst in more temperate areas, such as south-eastern Australia, it is usually found growing in rock crevices.[3] Thousands of people per day walk by these plants at the Sydney Opera House forecourt.[4] Cultivation and usesThe plant, which grows wild in southern Japan, was once much cultivated in Japanese gardens as an ornamental plant. Slightly over 100 garden varieties were given fantastic names.[5] Called matsubaran ("pine-needle orchid") in Japanese, it was one of the noble plants in the Edo period (1603–1867). The species is naturally found on all the main Hawaiian Islands. Known locally as Moa because of its chicken feet like stems, the Hawaiians collected large quantities of the spores and used them like talcum powder,[6] under the loincloth to prevent chafing. The spores were also used medicinally as a purge. Children would play a game called 'moa nahele' or cockfighting with the branch stems. Twigs of the Moa were interlocked and the players pulled on the ends. The loser's twig broke and the winner crowed like a rooster.[7] The species is still often used in making traditional Hawaiian leis. Its common name, whisk fern, alludes to its use in the past as a small broom, made by tying a handful of its branches together.[8] It is sometimes found in cultivation (either accidentally, as a weed in greenhouses, or deliberately, in the form of a number of cultivars).[1] It may prove to be a good source of antimicrobial chemicals.[9] References1. ^1 2 {{cite web | url = http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200002872 | work = Flora of North America | title = Psilotum nudum}} 2. ^{{cite web | url = http://www.mma.es/portal/secciones/biodiversidad/inventarios/inb/flora_vascular/pdf/1066.pdf | work = Atlas y Libro Rojo de la Flora Vascular Amenazada de España | title = Psilotum nudum | language=Spanish}} 3. ^1 {{cite book |last1=Fairley |first1=Alan |last2=Moore |first2=Philip |title=Native plants of the Sydney District |edition=1st |year=1989 |publisher=Kangaroo Press |isbn=0-86417-261-3 |page=27}} 4. ^Les Robinson - Field Guide to the Native Plants of Sydney, {{ISBN|978-0-7318-1211-0}} page 303 5. ^Rouffa, A. (1971) "An Appendageless Psilotum. Introduction to Aerial Shoot Morphology." American Fern Society 61(2), 75-86 6. ^{{cite web |url= http://www.botany.hawaii.edu/Faculty/Carr/psilot.htm |title= Psilotaceae |author= Carr, G. |publisher= University of Hawai`i at Manoa |accessdate=1 April 2010}} 7. ^{{cite book |title= Hawaiian-English Dictionary |author1= Mary Kawena Pukui |author2=Samuel Elbert |year= 1986 |publisher= University of Hawai‘i Press |page= 248}} 8. ^{{cite web |url= http://faculty.ucc.edu/biology-ombrello/POW/Psilotum.htm |title= Psilotum |author= Ombrello, T. |publisher= Union County College Biology Department |accessdate= 1 April 2010 |deadurl= yes |archiveurl= https://web.archive.org/web/20101015060448/http://faculty.ucc.edu/biology-ombrello/pow/Psilotum.htm |archivedate= 15 October 2010 |df= }} 9. ^{{cite journal |authors=Dolly Rani, P. B. Khare & P. K. Dantu |year=2010 |title=In vitro antibacterial and antifungal properties of aqueous and non-aqueous frond extracts of Psilotum nudum, Nephrolepis biserrata and Nephrolepis cordifolia |journal=Indian Journal of Pharmaceutical Sciences |volume=72 |issue=6 |pages=818–822 |doi=10.4103/0250-474X.84606 |pmc=3178992 |pmid=21969763 |url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3178992/}} External links
15 : Psilotaceae|Pteridophyta of Africa|Pteridophyta of Asia|Pteridophyta of the Americas|Pteridophyta of Europe|Pteridophyta of Oceania|Pteridophyta of Australia|Ferns of India|Ferns of Mexico|Ferns of the United States|Native ferns of Hawaii|Flora of tropical Asia|Plants described in 1753|Garden plants|Epiphytes |
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