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Boston Fern
 

Boston Fern


Part Number: FRN-8730-7984
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Boston Fern (Nephrolepis exaltata)

From Wikipedia, the free encyclopedia
The Boston Fern (Nephrolepis exaltata) is a species of fern in the family Lomariopsidaceae (sometimes treated in the families Davalliaceae or Oleandraceae, or in its own family, Nephrolepidaceae), native to tropical regions throughout the world. It is common in humid forests and swamps, especially in northern South America, Mexico, Central America, Florida, the West Indies, Polynesia ad Africa. Also known as the Wild Boston fern, Tuber ladder fern or Fishbone fern is in the broader family of sword fern.
The fronds are 50–250 cm long and 6–15 cm broad, with alternate pinnae (the small "leaflets" on either side of the midrib), each pinna being 2–8 cm long. The pinnae are generally deltoid. The pinnate vein pattern is also visible on these highly compound leaves. The edges appear slightly serrate. The species has erect fronds, but Nephrolepis exaltata cv. Bostoniensis (Boston Fern), has gracefully arching fronds. This mutation was discovered in a shipment of N. exaltata to Boston from Philadelphia in 1894. Other proposals for the origin of the term Boston Fern were documented by David Fairchild who stated the term came from Florida pioneer nurseryman John Soar who sent the plants to his friend in Boston.
Nephrolepis is a genus of about 30 species of ferns in the family Nephrolepidaceae or Lomariopsidaceae (included in Davalliaceae in some classifications). Nephrolepidaceae is part of the eupolypods I clade of the order Polypodiales, in the class Polypodiopsida.
Selected species
  • Nephrolepis biserrata
  • Nephrolepis cordifolia
  • Nephrolepis exaltata
  • Nephrolepis multiflora
  • Nephrolepis obliterata
  • Nephrolepis pectinata
  • Nephrolepis tuberosa
Some species of Nephrolepis are grown as ornamental plants. Nephrolepis exaltata and Nephrolepis obliterata are reported to be good plants for cleaning indoor air.
Some Nephrolepis spp. may prove to be a good source of new antimicrobial chemicals.
Cultivation and uses of the Boston fern
The Boston fern is a very popular house plant, often grown in hanging baskets or similar conditions. It is a perennial plant hardy in USDA plant hardiness zones 9-11. Although the fern may appear totally dead due to frost, it will re-emerge in the spring. In general, the Boston fern likes damp, but not soggy soil that is rich in nutrients. Of the common cultivated ferns, the Boston fern is the most tolerant to drought. The fern thrives best in humid conditions, so when grown as a house plant it becomes necessary to mist the plant when relative humidity falls below around 80%. Although outdoors this plant prefers partial shade or full shade, inside it grows best in bright filtered light. This plant is usually propagated by division of the rooted runners, as named cultivars will not produce true spores.
Boston fern is native to Florida, the West Indies, and Asian Pacific. A related species, the Tuberous Sword fern (Nephrolepis cordifolia), is frequently confused with Boston fern and is a serious exotic invasive plant, forming dense monocultures.
The Boston fern is classified as an invasive alien plant in South Africa. In some provinces it must, by law, be eradicated. In others, a permit is required to import, possess, grow, breed, move, sell, buy or accept one as a gift.

Order
Polypodiales

Family
Lomariopsidaceae

Genus
Nephrolepis

Species
N. exaltata

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