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By: Smith, Alan R., - Jermy, A C - Crabbe, J A - Thomas, Barry A.Type: ArticleIn: American fern journalVolume: 64Series:Issue:Date: 1974Page Range: 117--118Publication Info: [Washington, etc.] American Fern SocietySubjects:
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By: Crabbe, J AType: ArticleIn: The Gardens' bulletin, SingaporeVolume: 30Series: 4Issue:Date: 1977Page Range: 221--238Publication Info: Singapore, Govt. Print. Off. [etc.],Subjects: