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By: Jarzen, David MType: ArticleIn: The Gardens' bulletin, SingaporeVolume: 36Series: 4Issue:Date: 1983Page Range: 163--175Publication Info: Singapore, Govt. Print. Off. [etc.],Subjects:
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By: Graham, Alan, - Jarzen, David MType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 56Series:Issue:Date: 1969Page Range: 308--357Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects: