Dioscorea prehensilis -Dioscoreaceae- and Moraea spp. Jackson  and references therein. In many respects, the pattern of spine formation is similar to that which occurs in the development of thorns from lateral shoots. It has been proposed that thorny structures may have first evolved as a defense mechanism in plants growing in sandy environments that provided inadequate resources for fast regeneration of damage.
Spinose structures occur in a wide variety of ecologies, and their morphology also varies greatly. They occur as:. Some thorns are hollow and act as myrmecodomatia ; others e.
The thorns of many species are branched e. Plants bearing thorns, spines, or prickles are often used as a defense against burglary , being strategically planted below windows or around the entire perimeter of a property. Examples include hawthorn hedges in Europe, agaves in the Americas and in other countries where they have been introduced, Osage orange in the prairie states of the US, and Sansevieria in Africa. From Wikipedia, the free encyclopedia.
Smooth, featureless Citrus thorn. In: Plant Systematics, 2nd. Thorn is a growing full-time team of staff and contractors, working from over 21 states to unleash the power of technology on behalf of vulnerable children. Our community is spreading the message that we can do better, we can do more, we can stand up and build a world we believe in.
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Clear explanations of natural written and spoken English. Word Lists. Choose your language. My word lists. Tell us about this example sentence:. The word in the example sentence does not match the entry word. Issues relating to "Thorns" are maintained on the bug tracker. Report issues there. Sign In. From Minecraft Wiki. The primary programming efforts of the organization focus on Internet technology and the role it plays in facilitating child pornography and sexual slavery of children on a global scale.
While later researching some of the issues that were presented in the film, she was inspired to act when she learned that child pornography and the sexual slavery of children were taking place not only in Cambodia, but in the United States as well. When DNA Foundation was established, the name of the organization represented the couple, along with their joint commitment to addressing human trafficking. On November 15, , the name of the organization was changed following the dissolution of the founders' marriage.
At Thorn, we form long-term partnerships to build tools to fight child sexual abuse. We want our partners at tech companies, in law enforcement, and at NGOs, to have what they need to help kids. So we identify the needs, gather resources, and create powerful solutions. The problem of child sex trafficking and sexual abuse is vast. And now.Thorn Lighting is a globally trusted supplier of both outdoor and indoor luminaires and integrated controls.