| Resupinate |
(ree-SOO-pin-ayt)
Orchid flower buds which twist through 180 degrees during development, with the result that upon opening the labellum is in the lowermost position to the dorsal Sepal and petals. |
Last Updated: 04-27-2006 @ 11:14 PM Submitted By: Oscarman
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| Rhizome |
(rai-Zoum)
A horizontal growing stem of a plant that often sends out roots and shoots from its nodes. |
Last Updated: 04-27-2006 @ 11:14 PM Submitted By: Oscarman
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| Rupicolous |
Rock-dwelling.
Most often referring to Brazilian Laelias, where they grow on rock outcrops in full sun with nothing more than grasses and detritus to protect the plants, and nightly mist as the main source of moisture.
Rupicolous plants often exhibit extreme drought adaptations to ensure survival in exposed rocky habitats. Their roots creeping along crevices and fast drying water courses and are largely exposed to the fresh air.
Their pseudobulbs and leaves show the characteristics of other xerophytic (air) plants - succulent or leathery foliage geared to conserve water. The degree of succulence varies between those with short stout thick leaved species that live in full exposure to the sun, and those taller leathery blade leaved species sheltering in the partial shade of small shrubs, the elongated inflorescence reaching above the foliage of the surrounding vegetation. |
Last Updated: 05-17-2013 @ 05:35 PM Submitted By: cb977
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| S/H (semi-hydroponic) |
Generally referring to a method of orchid culture which consists of the plant roots growing in an inert media and irrigated on a regular basis with water or a nutrient solution.
Watered is achieved by flooding the pot and allowing the excess to drain away. Fluid absorbed by the media is then slowly released to the plant roots over a period of time.
Alternately, the pot may also feature a small reservoir at the bottom to allow a portion of the watering solution to remain and subsequently wick up through the media for absorption by the plant roots.
The frequency of watering is dependant on several growing condition factors, such as temperature and humidity. |
Last Updated: 12-23-2008 @ 01:08 AM Submitted By: lambelkip
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| Saprophyte |
(SAP-roh-fite)
A plant growing in and deriving most of its nourishment from the decaying organic matter, often apparently lacking in chlorophyl. |
Last Updated: 10-12-2008 @ 01:29 AM Submitted By: Oscarman
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| Scape |
| A leafless flower stalk arising from below, often with a single flower, as in Lycaste. |
Last Updated: 01-26-2008 @ 04:57 PM Submitted By: Oscarman
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| Semi-alba |
| A term applied to a white flower that has a colored lip. |
Last Updated: 01-26-2008 @ 04:57 PM Submitted By: Oscarman
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| Sepal |
| The outermost whorl of flower parts. |
Last Updated: 04-27-2006 @ 11:15 PM Submitted By: Oscarman
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| Sheath |
(SHEETH)
A modified leaf that encloses and protects an emerging inflorescence or leaf. Normally dries and sloughs off, when Inflorescence or leaf matures.
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Last Updated: 10-12-2008 @ 01:32 AM Submitted By: Oscarman
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| Species |
A group of individual plants that share many characteristics and interbreed freely. The species is the basic unit in plant classification. An individual plant is described by two latin words; the first indicates the genus, the second the species.
The word species is both singular and plural, so it is correct to say "This is a nice species", or "These are three nice species". 'Specie' is a term used only for currency, specifically coin money. |
Last Updated: 08-15-2006 @ 11:02 AM Submitted By: Oscarman
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| Specimen |
| A single plant of unusual size and number of flowers for the variety, exhibiting fine culture. |
Last Updated: 01-26-2008 @ 04:59 PM Submitted By: Oscarman
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| Spur |
A slender hollow projection from one of the floral segments, usually the labellum. Generally contains nectar to entice pollinating moths and other insects to the flower.
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Last Updated: 05-08-2006 @ 11:53 PM Submitted By: Oscarman
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| Staminoide |
(STAM-in-ohd)
An often rudimentary, sterile or abortive stamen
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Last Updated: 06-28-2006 @ 12:13 PM Submitted By: Oscarman
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| Stem Propagation |
| A method of vegetative reproduction used to produce identical plants of a particular variety or cultivar. It consists of taking sections of a flower stem which has with live nodes and culturing them in a nutrient agar mixture. This must be completed under sterile conditions and treated in the same manner as flasks sown with seed. |
Last Updated: 05-20-2006 @ 12:42 AM Submitted By: Oscarman
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| Stigma |
| That portion of the pistil that receives the pollen. |
Last Updated: 04-29-2006 @ 07:28 PM Submitted By: Oscarman
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| Stipe |
| The stalk connecting pollinia and viscidium in a pollinarium. |
Last Updated: 04-29-2006 @ 07:29 PM Submitted By: Oscarman
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| Stolon |
A shoot that bends to the ground and takes root; more commonly, a horizontal stem at or below surface of the ground that gives rise to a new plant at its tip.
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Last Updated: 06-28-2006 @ 10:48 AM Submitted By: Oscarman
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| Stoma |
pl: Stomata
Natural openings in the epidermis of the stem or leaf of a plant, which are surrounded by specialized guard cells and allow gaseous exchange with the air. |
Last Updated: 06-28-2006 @ 09:48 AM Submitted By: Oscarman
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| Sympodial |
(sim-POH-dee-al)
One of the two forms of orchid growth (the other is Monopodial), wherein each new lateral growth arises from the Rhizome of a previous growth, such as in the growth of a Cattleya orchid. |
Last Updated: 04-29-2006 @ 07:30 PM Submitted By: Oscarman
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| Synsepalum |
| A floral part formed by the partial or complete fusion of two or more sepals. |
Last Updated: 04-29-2006 @ 07:30 PM Submitted By: Oscarman
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