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1962
Abraham A, Mathew PM. 1962. Cytological studies in the cycads: sex chromosomes in Cycas. Ann. Bot. (Oxford), n.s. 26 (2): 261-266. https://doi.org/10.1093/oxfordjournals.aob.a083792. [DOI] [Reference]
1966
Abraham A, Mathew PM. 1966. Cytology of Encephalartos hildebrandtii A.Br. & Bouche. Ann. Bot. (Oxford), n.s. 30 (2): 239-241. https://doi.org/10.1093/oxfordjournals.aob.a084071. [DOI] [JSTOR]
1993
Ackery PR, Nash RJ, Bell EA, Norstog K. 1993. Sequestration of MAM-Glycosides by insects. In: Stevenson DW, Norstog KJ, editors. The Biology, structure, and systematics of the Cycadales : proceedings of CYCAD 90, the Second International Conference on Cycad Biology. Milton, QLD: Palm & Cycad Societies of Australia Ltd.. p. 3-7.
2010
Acuna-Castillo RH. 2010. A new species of Zamia (Zamiaceae) from Costa Rica. Brenesia 73 : 29-33. [Reference]
2009
Acuna-Castillo RH, Gómez P. LD. 2009. Selección de un lectotipo para Zamia fairchildiana L.D.Gómez (Zamiaceae). Brenesia 71 : 65-66.
2013
Acuna-Castillo RH, Marin-Mendez W. 2013. Comparative anatomy of leaflets of Zamia acuminata and Z. pseudomonticola (Zamiaceae) in Costa Rica. Rev Biol Trop 61 (2): 539-46. [Reference]
2012
Acuna-Castillo RH, Marín-Méndez WA. 2012. Some aspects of the foliar anatomy of two Zamia species from Costa Rica: Z. fairchildiana L. D. Gómez and Z. neurophyllidia D. W. Stev.. p. 192-203. [Reference]
2012
Agoo EM, Madulid DA. 2012. Cycas sancti-lasallei (Cycadaceae), a new species from the Philippines. Blumea 57 (2): 131-133. https://doi.org/10.3767/000651912X657503. [DOI] [Reference]
2019
Agoo EMG, Madulid DA, Callado JR. 2019. Novel species of Cycas (Cycadaceae) from Mindanao Island, Philippines. Mem. New York Bot. Gard. 117 : 529-539.
2004
Aguirre-Fey D. 2004. Demografía y Genética de Poblaciones de Zamia loddigesii Miq. (Zamiaceae) en el Centro de Veracruz, México. Universidad Veracruzana. 69 p.