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Dennstaedtia

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Dennstaedtia is a mostly tropical and subtropical genus of ferns described as a genus in 1801.[1][2][3] Hayscented fern,[4] or Cup ferns,[5] are common names for some species in this genus. Its best-known member is probably the temperate North-American hay-scented fern, Dennstaedtia punctilobula (pictured in the taxobox), which forms extensive clonal ground-cover colonies on level surfaces in the Appalachian area.

Some characteristics of Dennstaedtia:"Fronds homomorphic; stipe grooved above, hairy when young... lamina triangular to oblong, many times pinnate, usually densely hairy, especially on rachis... Veins free, pinnately branching, veinlet not reaching margin, with hydathode at apex. Sori orbicular, marginal, terminal on each veinlet, separate..."[6]

Species

Species include:[8]

References

  1. ^ Bernhardi, Johann Jakob. 1801. Journal für die Botanik 1800(2): 124
  2. ^ Tropicos, Dennstaedtia Bernh.
  3. ^ "碗蕨属 Dennstaedtia|iPlant 植物智——植物物种信息系统". www.iplant.cn. Retrieved 30 July 2022.
  4. ^ USDA, NRCS (n.d.). "Dennstaedtia". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 13 August 2016.
  5. ^ Joe, Barbara (June 1965). "Cup Ferns (Dennstaedtia) Cultivated in California". American Fern Journal. 55 (2): 58–62. doi:10.2307/1546136. JSTOR 1546136.
  6. ^ "碗蕨属 Dennstaedtia|iPlant 植物智——植物物种信息系统". www.iplant.cn. Retrieved 30 July 2022.
  7. ^ Flora of China, Dennstaedtia smithii
  8. ^ The Plant List, search for Dennstaedtia
  9. ^ Pigg, K. B.; DeVore, M. L.; Greenwood, D. R.; Sundue, M. A.; Schwartsburd, P.; Basinger, J. F. (2021). "Fossil Dennstaedtiaceae and Hymenophyllaceae from the Early Eocene of the Pacific Northwest". International Journal of Plant Sciences. 182 (9): 793–807. doi:10.1086/715633. S2CID 239036762.

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Dennstaedtia: Brief Summary

provided by wikipedia EN

Dennstaedtia is a mostly tropical and subtropical genus of ferns described as a genus in 1801. Hayscented fern, or Cup ferns, are common names for some species in this genus. Its best-known member is probably the temperate North-American hay-scented fern, Dennstaedtia punctilobula (pictured in the taxobox), which forms extensive clonal ground-cover colonies on level surfaces in the Appalachian area.

Some characteristics of Dennstaedtia:"Fronds homomorphic; stipe grooved above, hairy when young... lamina triangular to oblong, many times pinnate, usually densely hairy, especially on rachis... Veins free, pinnately branching, veinlet not reaching margin, with hydathode at apex. Sori orbicular, marginal, terminal on each veinlet, separate..."

Groove on the stipe.D. smithii, with a vertical white line on either side of the groove.

Groove on the stipe.D. smithii, with a vertical white line on either side of the groove.

Sori and pinnules.D. smithii

Sori and pinnules.D. smithii

Fronds multipinnate. D. smithii

Fronds multipinnate. D. smithii

A fern in the Dennstaedtia can reach two meters in height such as D. smithii.[7]

A fern in the Dennstaedtia can reach two meters in height such as D. smithii.

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