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Petiole

Definition

noun, plural: petioles

(1) (botany) The stalk at the base of the leaf blade, attaching and supporting the leaf blade to the stem.

(2) (entomology) The slender stalk connecting the mesosoma and the gaster of ants.

(3) (entomology) The stalk of the nest of the paper wasps, attaching the nest to the substrate protecting the brood from other insects (e.g. ants) through a chemical secreted by the wasps.


Supplement

(Botany) Flowering plants may be classified based on their petioles:

(Entomology) The petioles in ants are used for their identification. Some ants have single segment while others have two segments. The two segments are referred to by others as (1) the petiole and (2) the post-petiole). The structure connecting the mesosoma and the gaster of ants serves as the "waist" of the ant.

(Entomology) Paper wasps secrete a chemical around the petiole of their nest to repel other insects (such as ants) thereby protecting the young from these insects.


Word origin: from Latin petiolus (little foot), from pēs (foot)

Synonym(s):

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Re: Pterydophyta

... grow sideways at the surface or underground. Many leaves grow from rhizomes and make fern colonies. Fern leaves are called fronds. Fronds have a petiole (leaf stalk) and blade (main part of leaf). Each leaf has smaller leaflets called pinnae. Instead of flowers, ferns have sori, which grow directly ...

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by Anonymous
Sun Aug 04, 2013 12:52 pm
 
Forum: Botany Discussion
Topic: Pterydophyta
Replies: 30
Views: 22555

beeetle mania : classification

... what is the exact thing that differs them but i am sure that common insects or better beetle guides have these kind of informations. I dunno about petiole exactly cause i am not much into Hymenopteras. Try this site. http://bugguide.net/node/view/15740

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by Beetle
Mon Mar 12, 2007 11:28 am
 
Forum: Zoology Discussion
Topic: beeetle mania : classification
Replies: 3
Views: 2876

beeetle mania : classification

... would love if some insight was granted to me :shock: :D oh and also does somebody know whether the part before the abdomen of an ant is called the petiole, or is it the part before the part before the abdomen, if that makes sense. these keys are a nightmare to organize!! Cheers

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by nugget
Sun Mar 11, 2007 3:51 pm
 
Forum: Zoology Discussion
Topic: beeetle mania : classification
Replies: 3
Views: 2876

What is meant by.....

petiole, the stalk coming from the stem that supports the leaf

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by mith
Sun Jan 08, 2006 4:11 pm
 
Forum: Botany Discussion
Topic: What is meant by.....
Replies: 5
Views: 2959

What is meant by.....

is it petiole or petriole?

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by jnkdna
Sun Jan 08, 2006 11:04 am
 
Forum: Botany Discussion
Topic: What is meant by.....
Replies: 5
Views: 2959
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