| 21. | Immediately after his release, Giess was employed as plant collector at the University of Stellenbosch.
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| 22. | Hullett s friend and fellow plant collector Henry Nicholas Ridley was also amongst its council members.
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| 23. | Plant collectors have sought this plant, and have destroyed at least one population of it.
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| 24. | Ellis was also a plant collector.
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| 25. | It was introduced to cultivation in 2007 by plant collectors John Watson and Anita Flores Watson.
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| 26. | Rare or endangered seedlings ripped from their native turf and coveted by plant collectors around the globe.
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| 27. | Plant collectors have combed old Connecticut gardens looking for survivors and begging for a piece of root.
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| 28. | Teresa had been the primary plant collector but this time Littledale collected a long list of plants.
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| 29. | The genus is named in honor of its discoverer, Mexican-American plant collector Ynes Mexia.
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| 30. | The genus is named after the nineteenth-century British plant collector at Kew, James Bowie.
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