Dictionary » C » Cupule

Cupule

Definition

noun, plural: cupulas

(1) (botany) A plant structure made of hardened, cohering bracts, resembling a cup, as in acorn.

(2) (botany) A cup-like outgrowth of the thallus in some liverworts.

(3) (mycology) The apothecium of a cup fungus.

(4) (zoology) A small cup-shaped structure or body part, such as the suckers on the feet of some flies.


Supplement

(botany) The cupule, together with the calybium, makes up the accessory fruit of some flowering plants (e.g. Fagaceae). In some genera, the cupule may even develop sharp spines, such as in Castanea. This type of cupule renders protection from seed predators.


Word origin: Late Latin cūpula, little cask, diminutive of Latin cūpa, tub.


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Question from a freshman-definitions

Cupule: A fruit structure that protects the seed. It can be fully closed or releases the seed when it becomes mature by opening with 4 valves. Here is the dictionary definition: http://www.biology-online.org/dictionary/Cupule

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by Poison
Sat Oct 07, 2006 4:41 pm
 
Forum: Botany Discussion
Topic: Question from a freshman-definitions
Replies: 12
Views: 7546


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