| Labellum |
Part of an orchid flower which serves to attract insects that will pollinate the flower. The labellum is a modified petal and can be distinguished from the other petals and from the sepals by its large size and its often irregular shape. It is not unusual for the other two petals of an orchid flower to look like the sepals, so that the labellum stands out as distinct.
Also see Lip.
http://www.orchidboard.com/community/gallery/data/506/medium/Part_of_Flower.jpg] [/url] |
Last Updated: 07-23-2015 @ 11:57 PM Submitted By: Oscarman
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| LECA |
Lightweight Expanded Clay Aggregate
Used as potting media and terrarium substrates. Brand names include Hydroton, Hydrocorn, PrimeAgra.
It is made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln. The yielding gases expand the clay by thousands of small bubbles forming during heating producing a honeycomb structure.
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Last Updated: 05-28-2015 @ 12:42 PM Submitted By: AnonYMouse
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| Lip |
A modified petal which has evolved to attract pollinators; it also acts as a landing platform for insects during pollination.
Also see Labellum.
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Last Updated: 07-23-2015 @ 11:57 PM Submitted By: Oscarman
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| Lithophyte |
(lith-oh-Fight)
Term used to describe any plant that grows attached to a rock or cliff. |
Last Updated: 04-27-2006 @ 10:59 PM Submitted By: Oscarman
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| Lumen |
| A measurement of light output; relative to human perception which refers to the amount of light emitted by one candle that falls on one square foot of surface located at a distance of one foot from the candle. |
Last Updated: 07-20-2006 @ 11:18 PM Submitted By: Oscarman
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