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Notes on the Systematy of Malayan Phanerogams I - V
Ser 4, Vol 24, Page 1
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Flora Malesianae Precursores XLVIII. A Revision of Malesian Labiatae
Ser 4, Vol 24, Page 13
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New Records of Plant Diseases in Sarawak for the years 1966 & 1967
Ser 4, Vol 24, Page 181
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A revision of Lagerstroemia (Lythraceae)
Ser 4, Vol 24, Page 185
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Some New Desmid taxa from Malaya & Singapore
Ser 4, Vol 24, Page 337
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Notes on the Flowers of Orchidantha longiflora (Lowiaceae)
Ser 4, Vol 24, Page 347
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The Status of the genus Catanthera F. v. Muell (Melastomataceae)
Ser 4, Vol 24, Page 351
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Discocnide (Urticaceae)
Ser 4, Vol 24, Page 355
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Nothocnide (Urticaceae) in Malesia
Ser 4, Vol 24, Page 361