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perigynium
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perigynium
‖ perigynium Bot. (pɛrɪˈdʒɪnɪəm) Rarely anglicized as perigyne (ˈpɛrɪdʒɪn). [mod.L., f. Gr. περί round + γυνή woman, wife, in Bot. ‘pistil’.] Name introduced by Link for a structure surrounding the ovary. In current use: a. A membranous sac, investing the ovary in the Sedges (Carex); the utriculus. ...
Oxford English Dictionary
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Perigynium
In liverworts, "perigynium" refers to a tube-shaped structure which encases the archegonium and the developing sporophyte. Perigynium vs. utricule
The terms perigynium and utricle have been widely used interchangeably.
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Utricle
Also known as perigynium
Utricle (fruit), a type of dry fruit similar to an achene
Utricle (seaweed), an air filled sac in certain seaweeds
Prostatic
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perispore
perispore Bot. (ˈpɛrɪspɔə(r)) [a. F. périspore, ad. mod.L. periˈsporium (Richard 1808; also in Eng. use), f. Gr. περί around + σπόρος seed: see spore.] † a. Name for the hypogynous bristles of some sedges (see perianth, perigynium). Obs. b. The skin or integument of a spore.1848 Lindley Introd. Bot....
Oxford English Dictionary
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Carex cherokeensis
Its perigynium beaks are papery and fragile. It produces fruits in late spring and early summer.
References
cherokeensis
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Carex albonigra
The fruit is coated in a sac called a perigynium which is dark purple to chestnut brown and often tipped with white.
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Carex abrupta
Each fruit is surrounded by a sac called a perigynium which is boat-shaped to scoop-shaped with a very narrow, cylindrical beak coppery red to dark brown
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Carex praticola
The fruit is covered in a perigynium which is white to cream, sometimes with a coppery center, and translucent.
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Carex heteroneura
The perigynium is greenish or purplish and has a short, rounded tip.
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Carex vallicola
The fruit is enclosed in a brown perigynium.
External links
Jepson Manual Treatment
Photo gallery
vallicola
Plants described in 1861
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Carex nigricans
The pistillate flowers have dark bracts and the fruit is covered in a dark colored, long beaked perigynium.
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Carex scoparia
The fruit is covered in a sac called a perigynium which is light in color. The achene within the perigynium is ovate or elliptic.
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Carex buxbaumii
The fruits have dark-colored bracts and a sac called a perigynium or utricle which is gray-green and rough in texture.
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Carex helleri
The fruit is covered in a perigynium which is reddish or purplish in color with a beak at the tip.
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