Difference between revisions of "Notholaena"

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'''''Notholaena''''' is a genus of [[fern]]s in the family [[Pteridaceae]] found exclusively in the [[New World]].  Ferns of this genus are mostly epipetric (growing on rock) or occurring in coarse, gravelly soils, and are most abundant and diverse in the mountain ranges of warm arid or semiarid regions.  They typically have a creeping or erect [[rhizome]] and leaves that are [[pinnate|pinnatifid]] to pinnate-pinnatifid with marginal [[sorus|sori]] protected by a false [[indusium]] formed from the reflexed margin of the leaf.  Members of ''Notholaena'' also have a coating of whitish or yellowish '''farina''' (a powdery wax that prevents desiccation) on the surfaces of the leaves.  The farina is often limited to the [[abaxial]] (lower) leaf surface, but may occur on the [[adaxial]] (upper) leaf surface as well.
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Notholaena (Latin, spurious, cloak; from the rudimentary indusium). Polypodiaceae. Often written Nothochleana, but the above is Robert Brown's original orthography. A group of mostly warm temperate rock- loving ferns, differing from Cheilanthes mainly in having no marginal indusium. Some of the species are coated with a golden or silvery wax-like powder. The following have been advertised only once by a dealer in native plants. Culture as in Cheilanthes, pages 734 and 1217.
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Notholaena (Latin, spurious, cloak; from the rudimentary indusium). Polypodiaceae. Often written Nothochleana, but the above is Robert Brown's original orthography. A group of mostly warm temperate rock- loving ferns, differing from Cheilanthes mainly in having no marginal indusium. Some of the species are coated with a golden or silvery wax-like powder. Culture as in Cheilanthes.
 
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==Varieties==
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==Species==
 
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*''[[Notholaena bryopoda]]'' – a species unusual among ferns in that it is [[endemic (ecology)|endemic]] to [[gypsum|gypseous]] substrates in Mexico
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*''[[Notholaena californica]]'' – a fern of the southwestern US and northern Mexico
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*''[[Notholaena grayi]]'' – a fern of [[igneous]] substrates in Mexico and the [[Madrean sky islands]] of the southwestern US
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*''[[Notholaena marantae]]'' – occurs on dry rocks and serpentines in South and Central Europe
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*''[[Notholaena standleyi]]'' – a common fern of [[igneous]] substrates in the southwestern US
  
 
==Gallery==
 
==Gallery==

Latest revision as of 17:20, 22 February 2010


N. standleyi


Plant Characteristics
Cultivation
Scientific Names

Pteridaceae >

Notholaena >

R.Br. >


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Notholaena is a genus of ferns in the family Pteridaceae found exclusively in the New World. Ferns of this genus are mostly epipetric (growing on rock) or occurring in coarse, gravelly soils, and are most abundant and diverse in the mountain ranges of warm arid or semiarid regions. They typically have a creeping or erect rhizome and leaves that are pinnatifid to pinnate-pinnatifid with marginal sori protected by a false indusium formed from the reflexed margin of the leaf. Members of Notholaena also have a coating of whitish or yellowish farina (a powdery wax that prevents desiccation) on the surfaces of the leaves. The farina is often limited to the abaxial (lower) leaf surface, but may occur on the adaxial (upper) leaf surface as well.


Read about Notholaena in the Standard Cyclopedia of Horticulture 

Notholaena (Latin, spurious, cloak; from the rudimentary indusium). Polypodiaceae. Often written Nothochleana, but the above is Robert Brown's original orthography. A group of mostly warm temperate rock- loving ferns, differing from Cheilanthes mainly in having no marginal indusium. Some of the species are coated with a golden or silvery wax-like powder. Culture as in Cheilanthes.


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Cultivation

Propagation

Pests and diseases

Species

Selected species

Gallery

References

External links