| 31. | He directed the Rijksherbarium ( National Herbarium ) at Leiden from 1862.
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| 32. | He bequeathed the remains of his herbarium to the Apothecaries'Company.
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| 33. | The research was based on leaf material from nine dry herbarium specimens.
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| 34. | Herbarium specimens range in colour from light brown to red.
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| 35. | It is deposited at the National Herbarium of the Netherlands in Leiden.
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| 36. | The Dombey collection remained in his herbarium until his death.
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| 37. | A wing was added in 1936 to house the herbarium.
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| 38. | This material was destroyed in the Manila herbarium during World War II.
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| 39. | By now his herbarium specimens had grown to about 1500 in number.
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| 40. | The Museo Botanico " Cesare Bicchi " contains a herbarium and archive.
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