Morphological Variations Species of <i>Ziziphus</i> (Rhamnaceae) in Java
DOI:
https://doi.org/10.21776/ub.biotropika.2022.010.01.02Keywords:
Ziziphus, Variasi morfologi, JawaAbstract
Ziziphus di Indonesia terutama Jawa, terdapat lima jenis yang tercatat di buku Flora of Java. Tahun 2010, terdapat tambahan dua jenis yang belum tercatat di Flora of Java. Beberapa jenis belum terselesaikan posisi takson dan tatanama yang falid dan benar. Sementara itu, publikasi jurnal ilmiah terbaru terkait kajian taksonomi terhadap jenis-jenis Ziziphus di Jawa belum banyak dilakukan dan bahkan hampir tidak ada. Tujuan penelitian ini adalah untuk menelaah kembali jenis-jenis Ziziphus di Jawa berdasarkan variasi karakter morfologi. Metode penelitian ini, eksplorasi dan identifikasi spesimen di seluruh wilayah Jawa dan studi spesimen herbarium. Karakterisasi morfologi yang diamati meliputi perawakan, morfologi batang, daun, bunga, buah, dan biji. Dari hasil identifikasi diperoleh delapan jenia yaitu Ziziphus mauritiana Lam., Ziziphus spina-christi (L.) Desf., Ziziphus celtidifolia DC., Ziziphus javanensis Blume, Ziziphus horsfieldii Miq., Ziziphus rufula Miq., Ziziphus oenoplia (L.) Mill. dan Ziziphus nummularia (Burm. f.) Wight et Arn. Tiga jenis merupakan catatan baru untuk wilayah Jawa antara lain; Ziziphus celtidifolia DC., Ziziphus mauritiana Lam. dan Ziziphus spina-christi (L.) Desf. Analisis fenetik berdasarkan karakteristik morfologi menunjukkan bahwa Ziziphus di Jawa memiliki kemiripan 52% - 81%.
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