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Published In: Transactions of the American Philosophical Society, new series 7: 367. 1841. (2 Apr 1841) (Trans. Amer. Philos. Soc., n.s.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Name ReferenceIPCN ReferenceGametophytic CountSporophytic CountCountry 
Helianthus debilis Nutt.Pandey, R. M. 1982. Male meiosis in a naturally occurring hybrid between Helianthus debilis Nutt. and H. annuus L. New Bot. 9: 61–67. 82-8317 
Helianthus debilis Nutt.Keil, D. J., M. A. Luckow & D. J. Pinkava. 1988. Chromosome studies in Asteraceae from the United States, Mexico, the West Indies, and South America. Amer. J. Bot. 75: 652–668. 88-8917II 
Helianthus debilis Nutt.Mathew, A. & P. M. Mathew. 1988. Cytological studies on the south Indian Compositae. Glimpses Pl. Res. 8: 1–177. 88-891734
Helianthus debilis Nutt.Ramakanth, R. S. & A. SEETHARAM. 1977. Cytomorphological studies in the genus Helianthus. 1. Karyotype studies in the diploid species. Proc. Indian Acad. Sci., B 86: 155–158. 79-811734
Helianthus debilis Nutt.Kulshreshtha, V. B. & P. K. GUPTA. 1979. Cytogenetic studies in the genus Helianthus L. Cytologia 44: 325–334. 79-8117 
Helianthus debilis Nutt.Kulshreshtha, V. B. & P. K. GUPTA. 1981. Cytogenetic studies in the genus Helianthus L. II. Karyological studies in twelve species. Cytologia 46: 279–289. 79-811734
Helianthus debilis Nutt.PUSHPA, G., B. G. S. REDDY, K. M. D. NAYER & A. SEETHARAM. 1977. Induced polyploidy in Helianthus debilis Nutt. Sci. & Cult. 43: 221–222. 75-7817,34 0_22I +16- 32II, +0-6III+0-3IV 
Helianthus debilis Nutt.De Paula Wilson. 2005. Functionality of major and minor 45S rDNA sites in different diploid wild species and varieties of sunflowers. Caryologia 58(4): 374–379. 04-06 34
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