Photo:1
Photo:2
Photo:3
Photo:4
Photo:1 Photo:2 Photo:3 Photo:4 |
| Examples | |
| 2>
cypsela of Cynara
Typical achenes are the fruits of buttercup, buckwheat, and cannabis.
The achenes of the strawberry are familiar, where the "seeds" are achenes. Technically, the strawberry is an aggregate fruit with an aggregate of achenes, and what is eaten is accessory tissue, so this is an aggregate accessory fruit.
A rose also produces achenes. Each fruit, called a rose hip, holds a few achenes.
[edit] Tags:Fruit,Seed,Edit,Buttercup,Buckwheat,Accessory Fruit,Achene, | |
| Variations | |
| 2>
A winged achene, such as in maple, is called a samara.
Some achenes have accessory hair-like structures that cause them to tumble in the wind, similar to a tumbleweed; this type sometimes is called a "tumble fruit" or diaspore. An example is Anemone virginiana.
A caryopsis or grain is a type of fruit that closely resembles an achene, but differs in that the pericarp is fused to the thin seed coat in the grain.
An utricle is like an achene, but it has a compound ovary, sometimes with several seeds. In addition, the ovary of the fruit becomes bladder-like or corky.
Fruits of sedges are sometimes considered achenes although their one-locule ovary is actually a compound ovary (plants).
The fruit of the family Asteraceae is also so similar to an achene that it is often considered to be one, although it derives from a compound inferior ovary (with one locule). A special term for the Asteraceae fruit is cypsela (plural cypselae or cypselas). For example, the white-gray husks of a sunflower "seed" are the walls of the cypsela fruit. Many cypselas (e.g. dandelion) have calyx tissue attached that functions in biological dispersal of the seed.
[edit] Tags:Pericarp,Maple,Tumbleweed,Diaspore,Anemone Virginiana,Caryopsis,Grain,Ovary (plants),Asteraceae,Sunflower,Dandelion,Calyx,Biological Dispersal, | |
| Gallery | |
| 2>
Cypselae on a dandelion "clock" (the matured capitulum) can disperse in the wind due to the hair-like calyx tissue above each ovary.
A microscopic view of a dandelion "clock" showing the receptacle and the cypselas.
Samaras of Acer buergerianum are achenes with large wing-like structures.
The diaspore of Pulsatilla (family Ranunculaceae) disperses in the wind, either as single achenes or as the entire aggregate of achenes. The achenes have long hairy appendages that developed from the style of the flower.
v
d
e
Types of fruits
Types of fruits
Achene · Berry · Capsule · Caryopsis · Drupe · Follicle · Hesperidium · Legume · Loment · Nut · Pome · Samara · Schizocarp · Silique · Syconium
Categories of fruits
Accessory fruit · Simple fruit · Compound fruit · Aggregate fruit · Multiple fruit · Dehiscent fruit
Function
Diaspore · Drift fruit
Retrieved from "http://en.wikipedia.org/w/index.php?title=Achene&oldid=473632389"
Categories: Fruit morphologyHidden categories: Articles needing additional references from April 2009All articles needing additional references
Personal tools
Log in / create account
Namespaces
Article
Talk
Variants
Views
Read
Edit
View history
Actions
Search
Navigation
Main page
Contents
Featured content
Current events
Random article
Donate to Wikipedia
Interaction
Help
About Wikipedia
Community portal
Recent changes
Contact Wikipedia
Toolbox
What links here
Related changes
Upload file
Special pages
Permanent link
Cite this page
Print/export
Create a bookDownload as PDFPrintable version
Languages
العربية
Bân-lâm-gú
Català
Česky
Deutsch
Dolnoserbski
Eesti
Español
Esperanto
Français
Furlan
Galego
Hornjoserbsce
Italiano
Lumbaart
മലയാളം
Nederlands
日本語
Norsk (bokmål)
Picard
Polski
Português
Română
Русский
Slovenčina
Slovenščina
Српски / Srpski
Türkçe
Українська
Tiếng Việt
中文
This page was last modified on 28 January 2012 at 04:41.
Text is available under the Creative Commons Attribution-ShareAlike License;
additional terms may apply.
See Terms of use for details.
Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.Contact us
Privacy policy
About Wikipedia
Disclaimers
Mobile view
if ( window.isMSIE55 ) fixalpha();
if ( window.mediaWiki ) {
mw.loader.load(["mediawiki.user", "mediawiki.util", "mediawiki.page.ready", "mediawiki.legacy.wikibits", "mediawiki.legacy.ajax", "mediawiki.legacy.mwsuggest", "ext.gadget.wmfFR2011Style", "ext.vector.collapsibleNav", "ext.vector.collapsibleTabs", "ext.vector.editWarning", "ext.vector.simpleSearch", "ext.UserBuckets", "ext.articleFeedback.startup", "ext.articleFeedbackv5.startup", "ext.markAsHelpful"]);
}
if ( window.mediaWiki ) {
mw.user.options.set({"ccmeonemails":0,"cols":80,"date":"default","diffonly":0,"disablemail":0,"disablesuggest":0,"editfont":"default","editondblclick":0,"editsection":1,"editsectiononrightclick":0,"enotifminoredits":0,"enotifrevealaddr":0,"enotifusertalkpages":1,"enotifwatchlistpages":0,"extendwatchlist":0,"externaldiff":0,"externaleditor":0,"fancysig":0,"forceeditsummary":0,"gender":"unknown","hideminor":0,"hidepatrolled":0,"highlightbroken":1,"imagesize":2,"justify":0,"math":1,"minordefault":0,"newpageshidepatrolled":0,"nocache":0,"noconvertlink":0,"norollbackdiff":0,"numberheadings":0,"previewonfirst":0,"previewontop":1,"quickbar":5,"rcdays":7,"rclimit":50,"rememberpassword":0,"rows":25,"searchlimit":20,"showhiddencats":false,"showjumplinks":1,"shownumberswatching":1,"showtoc":1,"showtoolbar":1,"skin":"vector","stubthreshold":0,"thumbsize":4,"underline":2,"uselivepreview":0,"usenewrc":0,"watchcreations":1,"watchdefault":0,"watchdeletion":0,"watchlistdays":3,"watchlisthideanons":0,
"watchlisthidebots":0,"watchlisthideliu":0,"watchlisthideminor":0,"watchlisthideown":0,"watchlisthidepatrolled":0,"watchmoves":0,"wllimit":250,"flaggedrevssimpleui":1,"flaggedrevsstable":0,"flaggedrevseditdiffs":true,"flaggedrevsviewdiffs":false,"vector-simplesearch":1,"useeditwarning":1,"vector-collapsiblenav":1,"usebetatoolbar":1,"usebetatoolbar-cgd":1,"wikilove-enabled":1,"variant":"en","language":"en","searchNs0":true,"searchNs1":false,"searchNs2":false,"searchNs3":false,"searchNs4":false,"searchNs5":false,"searchNs6":false,"searchNs7":false,"searchNs8":false,"searchNs9":false,"searchNs10":false,"searchNs11":false,"searchNs12":false,"searchNs13":false,"searchNs14":false,"searchNs15":false,"searchNs100":false,"searchNs101":false,"searchNs108":false,"searchNs109":false,"gadget-wmfFR2011Style":1});;mw.user.tokens.set({"editToken":"+\\","watchToken":false});;mw.loader.state({"user.options":"ready","user.tokens":"ready"});
/* cache key: enwiki:resourceloader:filter:minify-js:4:b41a86ec4e0fe8329bc3ce917e792339 */
}
Tags:Capitulum,Style,Syconium,Dehiscent Fruit,Drift Fruit,Categories,Fruit Morphology,Articles Needing Additional References From April 2009,All Articles Needing Additional References,Article,Talk,Read,View History,Main Page,Contents,Featured Content,Current Events,Random Article,Donate To Wikipedia,Help,About Wikipedia,Community Portal,Recent Changes,Contact Wikipedia, | |
zote monety |