| 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: 05-14-2006 @ 02:15 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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| Maculate |
| Spotted or blotched. |
Last Updated: 01-31-2013 @ 01:50 AM Submitted By: Oscarman
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| Marmoration |
(Mar-mo-ra-tion)
A covering or incrusting with marble; a casing of marble; a variegating so as to resemble marble. |
Last Updated: 10-25-2008 @ 02:51 AM Submitted By: Oscarman
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| Maudiae |
| A color type often used to describe paphiopedilum orchids which display flowers of green and white. |
Last Updated: 01-18-2013 @ 11:28 AM Submitted By: Oscarman
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| Mericlone |
(mer-i-KLOHN)
A plant derived from tissue culture that is identical to its parent. |
Last Updated: 10-12-2008 @ 01:41 AM Submitted By: Oscarman
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| Meristem |
(MER-i-stem)
Undifferentiated tissue, usually from a growing point, which is capable of developing into specialized tissue, used in mass propagation of orchids. |
Last Updated: 10-12-2008 @ 02:09 AM Submitted By: Oscarman
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| MH (Metal Halide) |
| A high intensity discharge (HID) lamp in which the light is produced by arcing electricity through a mixture of metal halides. The light produced by metal halide lamps is in the white-blue spectrum, which encourages vegetative growth and bushiness, while discouraging upward growth. |
Last Updated: 07-20-2006 @ 11:11 PM Submitted By: Oscarman
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| Microclimate |
| A climate created in a small area to suit specific plant needs such as elevated humidity or lowered temperatures. |
Last Updated: 04-27-2006 @ 11:01 PM Submitted By: Oscarman
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| Monopodial |
(mon-oh-POH-dee-al)
One of the two forms of orchid vegetative growth (the other is Sympodial), wherein a single vegetative shoot grows continually upward from the crown, such as in the growth of Phalaenopsis orchids. |
Last Updated: 04-27-2006 @ 11:01 PM Submitted By: Oscarman
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| MV (Mercury Vapour) |
| The oldest member of the HID family, mercury vapour lamps work by arcing electricity through mercury vapour. While more efficient than incandescent, halogen and fluorescent lamps, mercury vapour lamps are the least effective of the entire HID family. This, combined with an improper colour spectrum for horticultural applications, makes mercury vapour lamps a poor choice for a grow light. |
Last Updated: 07-20-2006 @ 11:13 PM Submitted By: Oscarman
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| Mycorrhiza |
(plural: mycorrhizae, Greek for fungus roots)
The result of a symbiotic association between a fungus and a plant. This symbiosis takes place at the root level, where individual hyphae extending from the mycelium of a fungus colonize the roots of a host plant. |
Last Updated: 04-27-2006 @ 11:02 PM Submitted By: Oscarman
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| Node |
Joint on a bloom stalk (spike) or stem from which other stems, leaves, flowers, or roots may emerge.
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Last Updated: 09-07-2006 @ 08:37 AM Submitted By: Oscarman
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| NOID |
Common term used when the parentage or grex of a particular plant is unknown. Refers to a plant with no identification.
Noids often result from the loss of the identifying plant tag from the pot. |
Last Updated: 01-18-2013 @ 11:33 AM Submitted By: Blondie
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| Osmophore |
| Secretory tissue, which produces fragrances that attract pollinators. |
Last Updated: 04-27-2006 @ 11:03 PM Submitted By: Oscarman
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| Ovary |
| The part of a flower which contains the ovules and eventually becomes the fruit, containing seed. |
Last Updated: 04-27-2006 @ 11:03 PM Submitted By: Oscarman
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| Ovule |
| A group of cells within the ovary that develops into a seed after fertilization. |
Last Updated: 04-27-2006 @ 11:04 PM Submitted By: Oscarman
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| Panicle |
(PAN-ih-kul)
A branching raceme. |
Last Updated: 01-26-2008 @ 04:54 PM Submitted By: Oscarman
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| Peduncle |
(PEE-dung-kol)
The basal stalk of an inflorescence. |
Last Updated: 06-28-2006 @ 12:14 PM Submitted By: Oscarman
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