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| − | {{Taxobox
| + | #REDIRECT [[Platanthera]] |
| − | | color = lightgreen
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| − | | name = Piperia
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| − | | image = Pyadoniijohngame.jpeg
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| − | | image_width = 250px
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| − | | image_caption = '''''Piperia yadonii. Photo credit: John Game
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| − | | regnum = [[Plant]]ae
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| − | | divisio = [[Flowering plant|Magnoliophyta]]
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| − | | classis = [[Monocotyledon|Liliopsida]]
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| − | | ordo = [[Asparagales]]
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| − | | familia = [[Orchidaceae]]
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| − | | genus = '''''Piperia'''''
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| − | | familia_authority = [[Antoine Laurent de Jussieu|Juss.]]
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| − | }}
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| − | '''Piperia''' is a [[genus]] of the [[orchid]] family ''[[Orchidaceae]]''. This genus has the following characteristics: (a) a [[bisexual]] [[Perennial plant|perennial]] nongreen plant that grows from buried [[tuber]]s; fruit capsule bearing numerous minute seeds; (c) [[pollen]] that is sticky, and which is removed as [[sessile]] [[anther]] [[sac]]s; and (d) [[stigma]] fused with its [[style]] into a column. There are a total of eight species in the genus ''Piperia'', which is named for American [[botanist]] [[Charles V. Piper]]. The genus members manifest generally cylindrical spikes or [[raceme]]s.
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| − | The subsurface architecture of these terrestrial wild orchids consists of a [[rhizome]] structure, from which emanate [[tuber]]s. The rhizome extracts nutrients from fungal intermediates and may also store some of these nutrients. A basal rosette of leaves develops from the tuber at the surface of the soil, each of the two or three leaves being [[lanceolate]] in shape.<ref name="Morgan">Morgan & Ackerman, Lindleyana 5:205–211 (1990)</ref> Each leaf ranges from 10 to 15 centimeters in length and 20 to35 millimeters in width. Leaves of younger plants are often more diminutive in size.
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| − | ''[[Piperia yadonii]]'' exhibits a single veined flower one to two millimeters in width and a [[anatomical terms of location|basal]] [[rosette (botany)|rosette]] leaf formation.
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| − | == References==
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| − | <div style="font-size:90%;">
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| − | <references />
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| − | </div>
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| − | ==See also==
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| − | *[[Piperia yadonii]]
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| − | *[[Symbiosis]]
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| − | [[Category:Orchid genera]]
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Latest revision as of 03:14, 4 September 2009
