| Justicia betonica L. | Krishnappa, D. G. & I. Basavaraj. 1982. In IOPB chromosome number reports LXXV. Taxon 31: 361–362. | 82-83 | | 34 |
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| Justicia betonica L. | Subramanian, D. & T. Govindarajan. 1980. Cytotaxonomy of some species of Acanthaceae. J. Cytol. Genet. 15: 90–92. | 86-87 | | 28 |
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| Justicia betonica L. | Saggoo, M. I. 1983. Cytomorphological studies on plants of economic importance of Bicarpellatae from India. 259 pp. | 82-83 | 17 | |
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| Justicia betonica L. | Valsala Deri, G. & P. M. Mathew. 1982. In IOPB chromosome number reports LXXVII. Taxon 31: 773. | 82-83 | | 34 |
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| Justicia betonica L. | Govindarajan, T. & D. Subramanian. 1983. Karyomorphological studies in south Indian Acanthaceae. Cytologia 48: 491–504. | 82-83 | | 34 |
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| Justicia betonica L. | Bir, S. S. & M. I. S. Saggoo. 1981. Cytopalynology of certain Acanthaceae and Labiatae. J. Palynol. 17: 93–102. | 84-85 | 17 | |
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| Justicia betonica L. | Saggoo, M. I. & S. S. Bir. 1986. Meiotic studies in certain members of family Acanthaceae from south India. J. Indian Bot. Soc. 65: 310–315. | 88-89 | 17 | |
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| Justicia betonica L. | Daniel, T. F. 2000. Additional chromosome numbers of American Acanthaceae. Syst. Bot. 25(1): 15–25. | 98-00 | 17 | |
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| Justicia betonica L. | Daniel, T. F., K. Balkwill & M. J. Balkwill. 2000. Chromosome numbers of South African Acanthaceae. Proc. Calif. Acad. Sci. 52(12): 143–158. | 98-00 | 17 | |
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| Justicia betonica L. | Daniel, T. F. & T. I. Chuang. 1998. Chromosome numbers of cultivated Acanthaceae and systematic implications. Pp. 309--330 in P. Mathew & M. Sivadasan (editors), Diversity and Taxonomy of Tropical Flowering Plants. Mentor Books, Calicut. | 98-00 | 17 | |
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| Justicia betonica L. | Ranganath, R. M. 1981. Morphological and cytological studies in Acanthaceae. Ph.D. Thesis, Banalore, 1981. | 79-81 | 17 | 34 |
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| Justicia betonica L. | Bir, S. S. & M. I. S. Saggoo. 1979. In IOPB chromosome number reports LXV. Taxon 28: 630–631. | 79-81 | 17 | 34 |
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