Thorns


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Thorns

 

the hard, sharp-pointed formations on plants, which are the result of the metamorphosis of the stem, leaf, or root (or their parts). The wood inside the thorns is united with the wood of the organ that produces them. In a thorn of leaf origin, the entire leaf (in barberry and citrus fruits), its middle vein (the pinnate leaf in some species of milk vetch and pea shrub), or the stipules (in black locust and christ’s-thorn) are transformed. If the thorns are modified shoots (in hawthorn, honey locust, blackthorn, crab apples, and pears), they are either leafless or bear a few poorly developed leaves. Thorns may also develop from adventitious roots at the lower part of the trunk (in palms of the genera Acanthorhiza and Iriartea). Thorns are most often found in plants in arid and hot regions. The biological significance of thorns, as well as of needles, is the protection of plants from animals. In addition the replacement of branches and leaves by thorns decreases the plant’s evaporative surface and, thereby, its transpiration.

References in periodicals archive ?
So while I belong to the generation of 'newbies' in my family with large shoes to fill, I take with me the treasures from the past knowing that there will always be Thorns in Roses, and Roses will always have Thorns.
One such package is the Garden Thorn, a handy product that delivers water directly to plants' roots, thereby decreasing the amount of liquid lost to evaporation and runoff.
Cloudera, the global provider of the fastest, easiest, and most secure data management and analytics platform built on Apache Hadoop and the latest open source technologies, today announced it has extended its collaboration with Thorn: Digital Defenders of Children, to include professional services and support in addition to a Cloudera-powered enterprise data hub.
WITHOUT THORNS When news of poverty Scratches surface of our conscience, We ease the ache of shame Dropping a token ear of grain On some far away plain, Where we perceive only green grass And let our eyes bypass The many bare patches of land.
She brought a piece of the crown of thorns, forced on to Christ's head before he was crucified, to Scotland in 1561.
31 (ANI): Scores of devotees jumped onto heaps of thorns to appease Lord Shiva to celebrate the annual 'thorns festival' at a Pune temple.
The Thorns never really anticipated getting into the publishing business, but when they found artist Henry Asencio was representing 50 percent of their gallery profits, they began to reconsider.
Thorns Of An Innocent Soul is a short novella about two women, corrupted by hatred and enmity in life, forced to confront their own flaws and failings after death.
The crown of thorns was fashioned out of thorn branches used to keep a fire burning.
As we move into the season of roses in our gardens, think a moment on the following: Most roses have beautiful flowers and stems full of thorns. We have to teach ourselves consciously to see, admire, appreciate and remember the spectacular colours and aromas of the rose and not to concentrate on the thorns.
Fable I: "Giuseppe Penone: The Imprint of Drawing." In the anteroom of the Drawing Center, a giant barred the way, buried up to his eyebrows, from which his colossal forehead, its worry lines traced by thorns, emerged aboveground.
"The reason Lent is so long is that this path to the truth of oneself is long and snagged with thorns, and at the very end one stands alone before the broken body crowned with thorns upon the cross.