| Annals of the Tsukuba Botanical Garden | date of publication | 
              
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                | Annals of the Tsukuba Botanical Garden Volume 18 | December 1999 | 
              
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                |  | KONISHI, Tatsuo: | P.1 | 
              
                |  | Studies on the Reproduction and Conservation of Jade Vine Strongylodonmacrobotrys A.Gray), a Threatened Species |  | 
              
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                |  | Norio TANAKA and yoko FUKUDA: | P.53 | 
              
                |  | Ex situ Conservation Studies of Primula sieboldii (Primulaceae)in the Tsukuba Botanical Garden: I. Seed Production by Open Pollination |  | 
              
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                |  | Tomohisa YUKAWA: | P.59 | 
              
                |  | Cremastra aphylla (Orchidaceae), a New Mycoparasitic Species from Japan |  | 
              
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                |  | Goro KOKUBUGATA, Katsuhiko KONDO and Lou M. RANDALL | P.65 | 
              
                |  | Comparison of Chromosome Number and Karyotype of Two Lepidozamia Species (Zamiaceae, Cycadales |  | 
              
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                |  | Tsukasa IWASHINA, Tatsuo KONISHI, Akiko TAKAYAMA, Mioko FUKADA and Shunji OOTANI | P.71 | 
              
                |  | Isolation and Identification of the Flavonoids in the Leaves of Taro |  | 
              
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