| 41. | This put him in contact with the great plant collectors of the world and enabled him to amass this collection.
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| 42. | The species was first discovered near Frontino, Antioquia, Colombia by the German plant collector Gustav Wallis in 1871.
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| 43. | The tree is named for the American botanist and plant collector endemic to Borneo where it is confined to Sabah.
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| 44. | An avid plant collector, Iltis led numerous expeditions to many parts of the world to search for new plant species.
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| 45. | John Clayton, a plant collector in Virginia sent him many specimens, as well as manuscript descriptions, in the 1730s.
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| 46. | It grows naturally in the shelter of grassland rocks, though predation by plant collectors has placed it on the endangered list.
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| 47. | It is threatened by trampling by stock, and being collected illegally by plant collectors, weeds and drainage of its habitat.
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| 48. | The specific epithet " sieboldii " commemorates Philipp Franz von Siebold, a notable plant collector of the 19th century.
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| 49. | If you're a plant collector, put it in the sale agreement that you're taking your favorites with you.
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| 50. | "A Rage for Rock Gardening : The Story of Reginald Farrer, Gardener, Writer and Plant Collector " by Nicola Shulman.
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