Definitions
from The Century Dictionary.
- Outside of a flower.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective botany Describing a
nectary that is situated on aleaf orstem rather than in aflower
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Support
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Examples
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Professor, I think your extrafloral nectarines are attracting predatory blogging insects.
"Although I thought Ann's Rush apologism was unseemly and unfounded, I have to say I basically agree with Jon Chait..." Ann Althouse 2009
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The trees have modified, swollen spines or galls, which provide shelter for the ants, and extrafloral nectaries and modified leaflet tips which provide food.
Chapter 2 1994
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This particular nectar, which is produced by special glands called "extrafloral nectaries", has nothing to do with pollination, but attracts ants to the herbivore-attacked plants as defenders against their pests.
innovations-report 2010
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Diane Wagner and colleagues from the University of Alaska, Fairbanks, examined how two defenses-phenolic glycosides (a direct chemical defense) and extrafloral nectaries (an indirect defense) - were distributed among leaves of a plant in the trembling aspen (Populus tremuloides) in Alaska.
PhysOrg.com - latest science and technology news stories 2010
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The authors reasoned that aspen leaves that possessed high concentrations of phenolic glycosides might not need extrafloral nectaries if the chemicals directly deterred the herbivores or if these secondary compounds were also present in the nectary and had a negative effect on the very insects the plant was trying to attract.
PhysOrg.com - latest science and technology news stories PhysOrg Team 2010
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Moreover, previous studies have shown that jasmonates regulate the production of "extrafloral nectar".
innovations-report 2010
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This particular nectar, which is produced by special glands called "extrafloral nectaries", has nothing to do with pollination, but attracts ants to the herbivore-attacked plants as defenders against their pests.
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Diane Wagner has had a long-standing interest in extrafloral nectaries, or EFNs, which in general serve as an indirect plant defense.
PhysOrg.com - latest science and technology news stories 2010
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Moreover, previous studies have shown that jasmonates regulate the production of "extrafloral nectar".
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The authors reasoned that aspen leaves that possessed high concentrations of phenolic glycosides might not need extrafloral nectaries if the chemicals directly deterred the herbivores or if these secondary compounds were also present in the nectary and had a negative effect on the very insects the plant was trying to attract.
PhysOrg.com - latest science and technology news stories 2010
hernesheir commented on the word extrafloral
For a discussion of extrafloral nectaries, as mentioned in the examples, jump here.
November 27, 2011