World List of Cycads

Author(s)	Year	Title	Publication	Abstract
Abraham, A; Mathew, PM	1962	Cytological studies in the cycads: sex chromosomes in Cycas	Ann. Bot. (Oxford), n.s. 26(2): 261-266	[Abstract]
Abraham, A; Mathew, PM	1966	Cytology of Encephalartos hildebrandtii A.Br. & Bouche	Ann. Bot. (Oxford), n.s. 30(2): 239-241	[Abstract]
Ackery, PR; Nash, RJ; Bell, EA; Norstog, K	1993	Sequestration of MAM-Glycosides by insects	Proc. Second Int. Conf. Cycad Biol. : 3-7
Acuña, RH	2010	A new species of Zamia (Zamiaceae) from Costa Rica [Zamia gomeziana]	Brenesia 73-74: 29-33	[Abstract]
Acuña, RH; Gómez P., LD	2009	Selección de un lectotipo para Zamia fairchildiana L.D.Gómez (Zamiaceae)	Brenesia 71-72: 65-66	[Abstract]
Acuña, 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.	Mem. New York Bot. Gard. 106: 192-203	[Abstract]
Agoo, EM; Madulid, DA	2012	Cycas sancti-lasallei (Cycadaceae), a new species from the Philippines	Blumea 57(2): 131-133	[Abstract]
Ahern, CP; Staff, IA	1994	Symbiosis in cycads: the origin and development of coralloid roots in Macrozamia communis (Cycadaceae)	Amer. J. Bot. 81(12): 1559-1570	[Abstract]
Aiton, W	1789	Palmae	Hort. Kew. (W. Aiton) 3: 473-479
Anderson, RC	2012	Growing Cycas cairnsiana in Arizona	Cycad Newslett. 35(1): 16
Andersson, J	2010	An Encephalartos sclavoi travelogue	Cycad Newslett. 33(2): 16-17
Applequist, WL	2012	Report of the Nomenclature Committee for Vascular Plants: 64	Taxon 61(5): 1108-1117	[Abstract]
Archangelsky, S; Brett, DW	1963	Studies on Triassic fossil plants from Argentina	Ann. Bot. (Oxford), n.s. 27(1): 147-154	[Abstract]
Argyros, N	2008	Dioon tomasellii	Cycad Newslett. 31(4): 10-12
Argyros, N	2010	Stangeria eriopus: Paradox - past and present	Cycad Newslett. 33(1): 8-13
Argyros, N	2012	Cycas cairnsiana	Cycad Newslett. 35(1): 10-15
Arnold, CA	1948	Classification of gynmosperms from the viewpoint of paleobotany	Bot. Gaz. 110: 2-12	[Abstract]
Arnold, CA	1953	Origin and relationships of the cycads	Phytomorphology 3: 51-65
Artabe, AE; Stevenson, DW	1999	Fossil Cycadales of Argentina	Bot. Rev. (Lancaster) 65(3): 219-238	[Abstract]
Ascherson, PF; Koehne, E	1878	Bericht über die 28. (20 Frühjahrs-) Hauptversammlung des Botanischen Vereins der Provinz Brandenburg	Verh. Bot. Vereins Prov. Brandenburg 20
Ash, SR	1991	A new pinnate cycad leaf from the Upper Triassic Chinle Formation of Arizona (USA)	Bot. Gaz. 152(3): 123-131	[Abstract]
Atwood, S	1936	The anomalous root structure of Cycas revoluta	Amer. J. Bot. 23: 336-340	[Abstract]
Audran, JC	1979	Microspores, pollen grains and tapetum ontogeny in Ceratozamia mexicana (Cycadaceae): an ultrastructural study.	Phytomorphology 29(4-Mar): 350-362	[Abstract]
Avendaño, S; Vovides, A; Castillo-Campos, G	2003	A new species of Ceratozamia (Zamiaceae, Cycadales) from Veracruz, Mexico [Ceratozamia huastecorum]	Bot. J. Linn. Soc. 141(3): 395-398	[Abstract]
Bailey, FM	1883	Bowenia spectabilis var. serrata	Syn. Queensl. Fl. : 501
Bamps, PR; Lisowski, S	1990	A new species of Encephalartos (Zamiaceae) from Northeastern Zaire [Encephalartos ituriensis]	Mem. New York Bot. Gard. 57: 152-155	[Abstract]
Banack, SA	2003	Distribution of the neurotoxic nonprotein amino acid BMAA in Cycas micronesica	Bot. J. Linn. Soc. 143(2): 165-168	[Abstract]
Bancroft, N	1914	Pteridosperm anatomy and its relation to that of the cycads	New Phytol. 13: 41-68
Beck, W	1993	Cycas use by Australian aboriginal people	Proc. Second Int. Conf. Cycad Biol. : 8-15
Bell, EA	1993	From Lathyrus to Cycas: a search for dietary neurotoxins	Proc. Second Int. Conf. Cycad Biol. : 16-18
Bernal, R; Hammel, BE	1993	Histological changes during maturation in male and female cones of the cycad Zamia furfuracea and their significance in relation to pollination biology	Bot. J. Linn. Soc. 111(2): 241-252	[Abstract]
Bhat, RB	1998	Medicinal plants of Transkei (South Africa) for the treatment of digestive tract disorders.		[Abstract]
Bogler, DJ; Francisco-Ortega, J	2004	Molecular systematic studies in cycads: evidence from trnL intron and ITS2 rDNA sequences.	Bot. Rev. (Lancaster) 70(2): 260-273	[Abstract]
Bonta, M	2003	Teocinte, 'Ear of God'	Cycad Newslett. 26(1): 7-12
Bonta, M	2007	Ethnobotany of Honduran cycads	Mem. New York Bot. Gard. 97: 120-142
Bonta, M	2012	Cycads and human life cycles: Outline of a symbology	Mem. New York Bot. Gard. 106: 133-150	[Abstract]
Bonta, M; Osborne, R	2007	Cycads in the vernacular—a compendium of local names	Mem. New York Bot. Gard. 97: 143-175
Bork, J	1990	Developmental cycles in shoot growth of male Cycas circinalis	Amer. J. Bot. 77(8): 981-985	[Abstract]
Borsboom, AC; Wang, J; Forster, PI	2015	Determining maturity and population structure in Macrozamia parcifolia (Zamiaceae), a threatened Australian cycad	Austral. J. Bot.	[Abstract]
Breckon, GJ; Negrón-Ortiz, V	1993	Pollination of Zamia pumila by fungus gnats	Amer. J. Bot. 70(5, part 2): 106-107
Brenner, ED; Stevenson, DW; Chiu, J; Runko, SJ; Palenchar, PM; Coruzzi, GM	2007	Defining the role of BMAA and its potential glutamate receptor targets in Arabidopsis thaliana and Cycas rumphii	Mem. New York Bot. Gard. 97: 236-252
Brenner, ED; Stevenson, DW; Katari, MS; McCombie, RW; Rudd, SA; Runko, SJ; Marti	2007	Genomic studies in Cycas rumphii Miquel	Mem. New York Bot. Gard. 97: 182-193
Britten, L; Brueckner, A; Christian, HB; Dyer, RA; Henderson, MD; Killick, DJB;	1954	Newly described species	Bothalia 6(2): 415-454
Britton, NL	1907	Contributions to the flora of the Bahama Islands	Bull. New York Bot. Gard. 5(18): 311-318
Britton, NL	1916	Studies of West Indian Plants. 51 undescribed species from the Isle of Pines, Cuba	Bull. Torrey Bot. Club 43(9): 462-469
Brongniart, AT	1846	Sur un noveau genre de cycadées du Mexique	Ann. Sci. Nat., Bot. ser. 3, 5: 5-9
Broome, T	2003	Cultivation of Ceratozamia hildae	Cycad Newslett. 26(2): 10
Broome, T	2003	Cultivation of Dioon mejiae	Cycad Newslett. 26(1): 6
Broome, T	2003	Growing Cycas panzhihuaensis in Florida	Cycad Newslett. 26(4): 11
Broome, T	2004	Cultivating Bowenia in Central Florida	Cycad Newslett. 27(4): 11-12
Broome, T	2004	Encephalartos ferox in Florida	Cycad Newslett. 27(3): 10
Broome, T	2004	Growing Lepidozamia peroffskyana in Florida	Cycad Newslett. 27(1): 13
Broome, T	2004	Growing Zamia splendens in Central Florida	Cycad Newslett. 27(2): 12
Broome, T	2005	Cultivation of Zamia vazquezii and Z. fischeri	Cycad Newslett. 28(3,4): 29
Broome, T	2005	Zamia pygmaea in Central Florida	Cycad Newslett. 28(1): 10-11
Broome, T	2006	Cultivation of Ceratozamia kuesteriana	Cycad Newslett. 29(2,3): 12
Broome, T	2006	Growing Cycas debaoensis in Central Florida	Cycad Newslett. 29(1): 13
Broome, T	2006	Growing Macrozamia moorei in Central Florida	Cycad Newslett. 29(2,3): 18
Broome, T	2006	Zamia muricata in Central Florida	Cycad Newslett. 29(4): 11
Broome, T	2007	Cultivation of Cycas taitungensis in Central Florida	Cycad Newslett. 30(3): 10
Broome, T	2007	Encephalartos turneri in Central Florida	Cycad Newslett. 30(2): 14
Broome, T	2007	Growing Dioon merolae in Central Florida	Cycad Newslett. 30(1): 10
Broome, T	2007	Growing Microcycas in Central Florida	Cycad Newslett. 30(4): 21
Broome, T	2008	Growing Zamia floridana	Cycad Newslett. 31(2,3): 10-11
Broome, T	2009	Growing Lepidozamia hopei in Florida	Cycad Newslett. 32(4): 12
Broome, T	2009	Growing Zamia erosa and Z. pumila in central Florida	Cycad Newslett. 32(2,3): 5-6
Broome, T	2010	Growing Encephalartos sclavoi in Central Florida	Cycad Newslett. 33(2): 19
Broome, T	2010	Growing Stangeria eriopus in Central Florida	Cycad Newslett. 33(1): 13
Broome, T	2012	Cultivating Ceratozamia microstrobila in Central Florida	Cycad Newslett. 35(3): 20
Broome, T	2012	Cultivation of Dioon spinulosum in Florida	Cycad Newslett. 35(2): 13
Broome, T	2013	Growing Zamia elegantissima in Florida	Cycad Newslett. 35/36(4,1): 21
Broome, T; Nazor, C	2013	Cycas micholitzii and C. bifida - Two Cycas bamboo mimics of Southeast Asia	Cycad Newslett. 36(2,3): 6-12
Brown, R	1810	Cycadeae	Prodr. Fl. Nov. Holland. 1: 346-348
Brown, WH; Kienholz, JR	1925	Cycas chamberlainii, a new species	Philipp. J. Sci. 26: 47-52
Bruant	0		Bull. Soc. Bot. France
Bruce, TA; Brueckner, A; Dyer, RA; Kies, P; Verdoorn, IC	1951	Newly described species	Bothalia 6(1): 213-248
Bryan, GS	1936	Fascicled roots of Cycas revoluta	Amer. J. Bot. 23: 334-335	[Abstract]
Bryan, GS	1952	The cellular proembryo of Zamia and its cap cells	Amer. J. Bot. 39: 433-443	[Abstract]
Bryan, GS; Evans, RI	1956	Chromatin behavior in the developemnt and maturation of the egg nucleus of Zamia umbrosa	Amer. J. Bot. 43: 640-646	[Abstract]
Bryan, GS; Evans, RI	1957	Types of development from the central nucleus of Zamia umbrosa	Amer. J. Bot. 44: 404-415	[Abstract]
Bull, W	1878	Bowenia spectabilis var. serrulata	Retail List [Bull] 143: 4
Bull, W	1881	Zamia prasina	Retail List [Bull] : 20
Burbridge, AH; Whenlan, RJ	1982	Seed dispersal in a cycad, Macrozamia riedlei	Austral. J. Ecol. 7(1): 63-67	[Abstract]
Burch, DG	1981	The propagation of cycads - a game for young people?	Proc. Florida State Hort. Soc. 94: 216-218
Burtt Davy, J	1926	A manual of the flowering plants and ferns of the Transvaal with Swaziland, South Africa. Part I: Pteridophyta to Bombacaceae	Man. Pl. Transvaal
Butt, LP	1993	The genus Cycas and cycad conservation in Australia guide lines	Proc. Second Int. Conf. Cycad Biol. : 317-321
Byrne, M; James, SH	1991	Genetic diversity in the cycad Macrozamia riedlei	Heredity 67(1): 35-40	[Abstract]
Byrne, M; James, SH	1993	Genetic diversity in the cycad Macrozamia riedlei	Proc. Second Int. Conf. Cycad Biol. : 75-76
Byrne, M; Waycott, M; Hobbs, AA; James, SH	1997	Variation in ribosomal DNA within and between populations of Isotoma petraea and Macrozamia riedlei	Heredity 79: 573-583	[Abstract]
Cabrera Astraín, L	1868	Cycadaceae	Prodr. [A. P. de Candolle] 16(2): 522-548
Caiola, MG	1975	A light and electron microscopic study of the blue-green algae growing in the coralloid roots of Encephalartos altensteinii and in culture	Phycologia 14(1): 25-33	[Abstract]
Calderón, E; Stevenson, DW	2003	Una nueva especie del género Zamia L. (Zamiaceae), de los Andes de Colombia y clave actualizada para las especies del género en Colombia	Revista Acad. Colomb. Ci. Exact. 27(105): 485-490	[Abstract]
Caldwell, OW	1907	Microcycas calocoma	Bot. Gaz. 44: 118-141	[Abstract]
Caldwell, OW; Baker, CF	1907	The identity of Microcycas calocoma	Bot. Gaz. 43: 330-335	[Abstract]
Calonje, M	2007	History, growth rate and phenology of Microcycas calocoma in South Florida	Cycad Newslett. 30(4): 20-21
Calonje, M	2007	Phenology of Dioon merolae	Cycad Newslett. 30(1): 11
Calonje, M	2009	A new cliff-dwelling species of Zamia (Zamiaceae) from Belize [Zamia meermanii]	J. Bot. Res. Inst. Texas 3(1): 23-39	[Abstract]
Calonje, M	2011	Phenology of Cycas revoluta in South Florida	Cycad Newslett. 34(2,3): 42-43
Calonje, M; Calonje, A	2005	Zamia encephalartoides in the Chicamocha canyon	Cycad Newslett. 28(3,4): 8-11
Calonje, M; Calonje, C	2012	Phenology of Dioon spinulosum in South Florida	Cycad Newslett. 35(2): 15
Calonje, M; Esquivel, HE; Morales, G; Mora-Lizcano, YA	2012	A new arborescent species of Zamia (Cycadales, Zamiaceae) from the department of Huila, eastern cordillera of Colombia [Zamia huilensis]	Caldasia 34(2): 283-290	[Abstract]
Calonje, M; Esquivel, HE; Stevenson, DW; Calonje, C; Pava, D	2011	A new arborescent species of Zamia from the Central Cordillera of Tolima, Colombia (Cycadales, Zamiaceae), with comments on the Z. poeppigiana species complex [Zamia tolimensis]	Brittonia 63(4): 442-451	[Abstract]
Calonje, M; Meerman, J	2009	What is Zamia prasina (Zamiaceae: Cycadales)?	J. Bot. Res. Inst. Texas 3(1): 43-49	[Abstract]
Calonje, M; Meerman, J; Griffith, MP; Hoese, G	2009	A new species of Zamia (Zamiaceae) from the Maya Mountains of Belize [Zamia decumbens]	J. Bot. Res. Inst. Texas 3(1): 31-41	[Abstract]
Calonje, M; Meerow, AW	2010	The typification of Zamia erosa and the priority of that name over Z. amblyphyllidia	Taxon 59(2): 637-642	[Abstract]
Calonje, M; Meerow, AW; Knowles, L; Knowles, D; Griffith, MP; Nakamura, K; Franc	2013	Cycad biodiversity in the Bahamas Archipelago and conservation genetics of the threatened Zamia lucayana (Zamiaceae)	Oryx 47(2): 190-198	[Abstract]
Calonje, M; Morales, G; López-Gallego, C; Roldán, FJ	2015	A taxonomic revision of Zamia montana and Zamia oligodonta, with notes on their conservation status	Phytotaxa 192(4): 279-289	[Abstract]
Calonje, M; Sennikov, A	2017	In the process of saving plant names from oblivion: The revised nomenclature of Ceratozamia fuscoviridis (Zamiaceae)	Taxon 66(1): 158-164	[Abstract]
Calonje, M; Stevenson, DW; Calonje, C; Ramos, YA; Lindstrom, AJ	2010	A new species of Zamia from Choco, Colombia (Cycadales, Zamiaceae) [Zamia pyrophylla]	Brittonia 62(1): 80-85	[Abstract]
Calonje, M; Taylor, AS; Stevenson, DW; Holzman, G; Ramos, YA	2012	Zamia lindleyi: A misunderstood species from the highlands of Western Panama	Mem. New York Bot. Gard. 106: 419-437	[Abstract]
Cameron, A	2009	Encephalartos kisambo in cultivation - Athi River, Kenya	Cycad Newslett. 32(1): 17-18
Cameron, A	2010	Visiting Encephalartos kisambo in habitat	Cycad Newslett. 33(4): 12-14
Capela, P	2007	In the field with Encephalartos turneri	Cycad Newslett. 30(2): 12-13
Caputo, P; Cozzolino, S; Gaudio, L; Moretti, A; Stevenson, DW	1996	Karyology and phylogeny of some Mesoamerican species of Zamia (Zamiaceae).	Amer. J. Bot. 83(11): 1513-1520	[Abstract]
Caputo, P; Marquis, C; Wurtzel, T; Stevenson, DW; Wurtzel, ET	1993	Molecular biology in cycad systematics	Proc. Second Int. Conf. Cycad Biol. : 213-219
Caputo, P; Stevenson, DW; Wurtzel, ET	1991	A phylogenetic analysis of American Zamiaceae (Cycadales) using chloroplast DNA restriction fragment length polymorphisms	Brittonia 43(3): 135-143	[Abstract]
Carabia, JP	1941	Contribuciones al estudio de la flora cubana. Gymnospermae	Caribbean Forest. 2: 83-99
Cardini, F; Britton, G; Selva, A	1989	A seco-carotenoid from leaves of two cycads	Phytochemistry 28(10): 2793-2795	[Abstract]
Cardini, F; Ginanneschi, M; Selva, A; Chelli, M	1987	Semi-ß-carotenone from leaves of two cycads	Phytochemistry 26(7): 2029-2031	[Abstract]
Carpenter, RJ	1991	Macrozamia from the early tertiary of Tasmania and a study of the cuticles of extant species	Austral. Syst. Bot. 4(2): 433-444	[Abstract]
Carruthers, W	1893	On Cycas taiwaniana sp. nov. and C. seemanii A. Br.	J. Bot. 31: 1-3
Carson, JL; Wallace, JW	1972	The detection of C-glycosylflavones in Dioon spinulosum.	Phytochemistry 11(2): 842-843	[Abstract]
Castillo-Guevara, C	2007	Herbivores and chemical defenses in cycads—an ecological and evolutionary approach	Mem. New York Bot. Gard. 97: 87-103
Chadwick, CE	1993	The roles of Tranes lyterioides and T. sparsus Boh (col., Curculiodidae) ini the pollination of Macrozamia communis (Zamiaceae)	Proc. Second Int. Conf. Cycad Biol. : 77-88
Chamberlain, CJ	1906	Preliminary note on Ceratozamia	Bot. Gaz. 43: 137	[Abstract]
Chamberlain, CJ	1906	The ovule and female gametophyte of Dioon	Bot. Gaz. 42: 321-358	[Abstract]
Chamberlain, CJ	1908	Report on Dioon and Ceratozamia	Science 27: 333
Chamberlain, CJ	1909	Dioon spinulosum	Bot. Gaz. 48: 401-413	[Abstract]
Chamberlain, CJ	1909	Spermatogenesis in Dioon edule	Bot. Gaz. 47: 215-236	[Abstract]
Chamberlain, CJ	1910	Fertilization and embryogeny in Dioon edule.	Bot. Gaz. 50: 415-429	[Abstract]
Chamberlain, CJ	1911	The adult cycad trunk.	Bot. Gaz. 52: 81-104	[Abstract]
Chamberlain, CJ	1912	Morphology of Ceratozamia	Bot. Gaz. 53: 1-19	[Abstract]
Chamberlain, CJ	1912	Two species of Bowenia	Bot. Gaz. 54: 419-423
Chamberlain, CJ	1913	Macrozamia moorei, a connecting link between living and fossil cycads	Bot. Gaz. 55: 141-154	[Abstract]
Chamberlain, CJ	1916	Stangeria paradoxa	Bot. Gaz. 61: 353-372	[Abstract]
Chamberlain, CJ	1919	The Living Cycads	Liv. Cycads
Chamberlain, CJ	1919	The Living cycads
Chamberlain, CJ	1920	The living cycads and the phylogeny of seed plants.	Amer. J. Bot. 7(4): 146-153
Chamberlain, CJ	1926	Hybrids in cycads	Bot. Gaz. 81: 401-418
Chamberlain, CJ	1926	Two new species of Zamia [Zamia monticola & Zamia sylvatica]	Bot. Gaz. 81(2): 218-227
Chamberlain, CJ	1935	Cycadophytes - Cycadales. IN: Gymnosperms: Structure and Evolution
Chang, DCN; Grobbelaar, N; Coetzee, J	1988	SEM observations on cycanobacteria-infected cycad coralloid roots	S. African J. Bot. 54(5): 491-495	[Abstract]
Chaplot, BB; Jasrai, YT	2000	Differentiation of shoot buds in bulb-scale cultures of Cycas revoluta Thunb.	Phytomorphology 50(1): 37-40	[Abstract]
Charltoon, TS; Marini, AM; Markey, SP; Norstog, K; Duncan, MW	1992	Quantification of the neurotoxin 2-amino-3-(methylamino)-propanoic acid (BMAA) in Cycadales	Phytochemistry 31(10): 3429-3432	[Abstract]
Chaves Guevara, R; Ferrer, Y	2007	Some news of Microcycas in Cuba	Cycad Newslett. 30(4): 10-14
Chávez González, AD; Rendón Aguilar, B; Luna José, AdL	2007	Ecología de Ceratozamia aff. robusta en la Sierra Madre del Sur de Oaxaca	Mem. New York Bot. Gard. 97: 73-86
Chavez, VM	1993	Embriogenesis Somatica a Partir de Foliolos Jovenes de Plantas Maduras de Ceratozamia mexicana var. Robusta Miq. (Dyer) (Zamiaceae) - Especies en Peligro de Extinction
Chemnick, J	2003	Notes on Ceratozamia hildae	Cycad Newslett. 26(2): 13
Chemnick, J	2004	Attempts at cultivation of Bowenia in Southern California	Cycad Newslett. 27(4): 13
Chemnick, J	2004	Notes on Encephalartos ferox	Cycad Newslett. 27(3): 8-9
Chemnick, J	2005	In the field with Ceratozamia euryphyllidia	Cycad Newslett. 28(2): 10-13
Chemnick, J	2007	Seed dispersal agents of two Mexican cycads	Mem. New York Bot. Gard. 97: 104-119
Chemnick, J	2012	Dioon spinulosum in Habitat	Cycad Newslett. 35(2): 9-10
Chemnick, J	2014	The Kei River cycad… figuratively and literally	Cycad Newslett. 37(1): 4-5
Chemnick, J; Gregory, TJ	1996	A new species of Ceratozamia (Zamiaceae) from Oaxaca, Mexico with comments on distribution, habitat, and relationships [Ceratozamia whitelockiana]	Phytologia 79(1): 51-57	[Abstract]
Chemnick, J; Gregory, TJ; Salas-Morales, SH	1998	A revision of Dioon tomasellii (Zamiaceae) from western Mexico, a range extension of D. merolae, and clarification of D. purpusii	Phytologia 83(1): 1-6	[Abstract]
Chemnick, J; Gregory, TJ; Salas-Morales, SH	1998	Ceratozamia mixeorum (Zamiaceae), a new species from Oaxaca, Mexico with comments on distribution, habitat, and species relationships	Phytologia 83(1): 47-52	[Abstract]
Chemnick, J; Pérez-Farrera, MA	2007	Dioon merolae De Luca, Sabato & Vázquez-Torres - its history, ethnobotany and conservation	Cycad Newslett. 30(2): 8-10
Chen, CJ; Liu, N	2004	New discoveries of cycads and advancement of conservation of cycads in China	Bot. Rev. (Lancaster) 70(1): 93-100	[Abstract]
Chen, CJ; Stevenson, DW	1999	“Cycadaceae,” in Flora of China eds C. Y. Wu and P. Raven (Beijing: Science Press/Saint Louis, MO: Missouri Botanical Garden Press)	Fl. China 4: 1-7
Chirgwin, SK	1993	Studies of Cycas in Australia's Northern Territory	Proc. Second Int. Conf. Cycad Biol. : 220-227
Chirgwin, SK; Wigston, D	1993	A new species of Cycas from the Northern Territory [Cycas conferta]	J. Adelaide Bot. Gard. 15(2): 147-148
Choi, JS; Friedman, WE	1991	Development of the pollen tube of Zamia furfuracea (Zamiaceae) and its evolutionary implications.	Amer. J. Bot. 78(4): 544-560	[Abstract]
Chrysler, MA	1926	Vascular tissues of Microcycas calocoma.	Bot. Gaz. 82(3): 233-252	[Abstract]
Chrysler, MA	1937	Persistent juveniles among the cycads.	Bot. Gaz. 98(4): 696-710	[Abstract]
Claassen, I	2000	Focus on Encephalartos senticosus	Encephalartos 63: 4-10
Clark, DA; Clark, DB	1987	Temporal and environmental patterns of reproduction in Zamia skinneri, a tropical rain forest cycad		[Abstract]
Clark, DA; Clark, DB	1988	Leaf production and the cost of reproduction in the neotropical rain forest cycad, Zamia skinneri		[Abstract]
Clark, DB; Clark, DA; Grayum, MH	1992	Leaf demography of a neotropical rain forest cycad, Zamia skinneri (Zamiaceae).	Amer. J. Bot. 79(1): 28-33	[Abstract]
Clark, P	2004	Stalking the elusive coonties of historic Cedar Key	Cycad Newslett. 27(3): 12-14
Collins, M	19	Time for pollination and seed shed in cycads
Collins, M	1987	International protection of cycads	Fairchild Trop. Gard. Bull. 42(3): 28-29
Connell, SW; Ladd, PG	1993	Comparative population biology of the Australian cycads Macrozamia riedlei and M. communis	Proc. Second Int. Conf. Cycad Biol. : 89-95
Connell, SW; Ladd, PG	1993	Pollination biology of Macrozamia riedlei - The role of insects	Proc. Second Int. Conf. Cycad Biol. : 96-102
Cook, OF; Collins, GN	1903	Economic plants of Porto Rico	Contr. U.S. Natl. Herb. 8(2): 57-269
Coulter, JM	1909	Evolutionary tendences among Gymnosperms.	Bot. Gaz. 48: 81-97	[Abstract]
Coulter, JM; Chamberlain, CJ	1903	The embryogeny of Zamia	Bot. Gaz. 35: 184-193
Coulter, JM; Chrysler, MA	1904	Regeneration in Zamia.	Bot. Gaz. 38: 452-458
Cox, PA; Banack, SA; Murch, SJ	2007	Cyanobacteria, cycads, and the neurodegenerative disease among the Chamorro people of Guam	Mem. New York Bot. Gard. 97: 253-285
Crouch, NR; Donaldson, J; Smith, GF; Symmonds, R; Dalzell, C; Scott-Shaw, C	2000	Ex situ conservation of Stangeria eriopus (Stangeriaceae) at the Durban Botanic Gardens, South Africa	Encephalartos 63: 16-24
Daday, A; Smith, GD	1987	The hydrogenase-nitrogenase relationship in a symbiotic cycanobacterium isolated from Macrozamia communis L. Johnson	Austral. J. Pl. Physiol. 14(3): 319-324	[Abstract]
Dalzell, C	2008	Encephalartos horridus in situ	Cycad Newslett. 31(1): 8
Dammer, CL	1907	Cycadaceae. In: Ule, E. (ed.) II. Beiträge zur flora der hylaea nach den sammlungen von Ule’s Amazonas-expedition	Verh. Bot. Vereins Prov. Brandenburg 48: 117-118
de Jong, B	2011	(no title)	Cycad Newslett. 34(2,3): 44
de Laubenfels, DJ	2007	Cycas truncata de Laub., a long-known but not validly described species	Encephalartos 92: 17
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Osborne, R	1985	Sex change in cycads – hope for woodii?	Encephalartos 2: 20-22
Osborne, R	1986	Focus on Encephalartos woodii	Encephalartos 5: 4-10
Osborne, R	1987	African cycads	Fairchild Trop. Gard. Bull. 42(3): 14-16
Osborne, R	1987	Focus on Encephalartos ferox	Encephalartos 9: 14-21
Osborne, R	1987	Focus on Encephalartos ghellinckii	Encephalartos 12: 16-23
Osborne, R	1987	Focus on Encephalartos villosus	Encephalartos 10: 16-23
Osborne, R	1988	Focus on Encephalartos barteri	Encephalartos 14: 8-16
Osborne, R	1988	Focus on Encephalartos lanatus	Encephalartos 16: 3-9
Osborne, R	1988	Focus on Encephalartos lebomboensis	Encephalartos 15: 6-15
Osborne, R	1989	Cycad pollen survives ultra-low temperature.	Encephalartos 17: 25	[Abstract]
Osborne, R	1989	Focus on Encephalartos eugene-maraisii	Encephalartos 17: 9-13
Osborne, R	1989	Focus on Encephalartos laevifolius	Encephalartos 19: 2-8
Osborne, R	1989	Focus on Encephalartos transvenosus	Encephalartos 20: 10-18
Osborne, R	1990	Focus on Encephalartos hildebrandtii	Encephalartos 22: 6-12
Osborne, R	1990	Focus on Encephalartos umbeluziensis	Encephalartos 21: 3-9
Osborne, R	1990	Micropropagation in cycads	Mem. New York Bot. Gard. 57: 82-88	[Abstract]
Osborne, R	1991	Focus on Encephalartos gratus	Encephalartos 25: 4-9
Osborne, R	1991	Focus on Encephalartos paucidentatus	Encephalartos 27: 3-9
Osborne, R	1992	Focus on Encephalartos inopinus	Encephalartos 31: 4-8
Osborne, R	1993	A conservation strategy for the South African cycads	Proc. Second Int. Conf. Cycad Biol. : 341-349
Osborne, R	1993	Focus on Encephalartos concinnus	Encephalartos 34: 4-11
Osborne, R	1993	Focus on Encephalartos munchii	Encephalartos 35: 4-9
Osborne, R	1993	Focus on Encephalartos trispinosus	Encephalartos 33: 4-12
Osborne, R	1993	The cycad society of Southern Africa	Proc. Second Int. Conf. Cycad Biol. : 350-351
Osborne, R	1994	Focus on Encephalartos manikensis	Encephalartos 38: 4-11
Osborne, R	1997	Focus on Macrozamia moorei	Encephalartos 49: 4-9
Osborne, R	1998	Focus on Macrozamia lucida	Encephalartos 56: 4-9
Osborne, R	1999	Focus on Lepidozamia peroffskyana	Encephalartos 58: 4-11
Osborne, R	1999	Focus on Macrozamia macdonnellii	Encephalartos 59: 4-7
Osborne, R	2000	Focus on Lepidozamia hopei	Encephalartos 64: 12-16
Osborne, R	2000	Focus on Macrozamia platyrachis	Encephalartos 61: 4-8
Osborne, R	2002	Focus on - cycad fossils	Encephalartos	[Abstract]
Osborne, R	2003	Focus on Macrozamia douglasii	Encephalartos 74: 6-11
Osborne, R	2005	Focus on Cycas tropophylla	Encephalartos 82: 8-13
Osborne, R	2005	Focus on Dioon caputoi	Encephalartos 83: 15-23
Osborne, R	2005	The enigmatic Encephalartos laurentianus	Cycad Newslett. 28(3,4): 27-28
Osborne, R	2006	Focus on Macrozamia dyeri	Encephalartos 88: 8-16
Osborne, R	2008	Some notes on Encephalartos horridus (Jacq.) Lehm.	Cycad Newslett. 31(1): 8-9
Osborne, R	2011	Cycas revoluta - more names than any other cycad!	Cycad Newslett. 34(2,3): 36
Osborne, R	2011	Focus on Cycas scratchleyana F.Muell.	Encephalartos 103: 9-13
Osborne, R	2012	Taxonomy of Dioon spinulosum Dyer ex Eichler	Cycad Newslett. 35(2): 8
Osborne, R; Calonje, A; Hill, KD; Stanberg, L; Stevenson, DW	2012	The world list of cycads	Mem. New York Bot. Gard. 106: 480-508	[Abstract]
Osborne, R; Forster, PI	2008	Focus on Macrozamia viridis	Encephalartos 95: 11-14
Osborne, R; Gorelick, R	2007	Sex change in cycads—cases, causes, and chemistry	Mem. New York Bot. Gard. 97: 335-345
Osborne, R; Gregory, TJ	2009	Focus on Dioon merolae	Encephalartos 97: 12-17
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Osborne, R; Hill, KD; Nguyên, TH; Lôc, PK	2006	Focus on Cycas hoabinhensis	Encephalartos 87: 9-13
Osborne, R; Nair, JJ	1993	Potential errors in the determination of methylazoxymethanol glycosides in plant material	Proc. Second Int. Conf. Cycad Biol. : 57-60
Osborne, R; Nguyên, TH	2002	Focus on Cycas elongata	Encephalartos 72: 4-9
Osborne, R; Nicolalde-Morejón, F; Vovides, A	2008	Focus on Zamia lacandona	Encephalartos 94: 11-14
Osborne, R; Ottley, H; Randall, L	2007	Focus on Cycas calcicola	Encephalartos 92: 10-16
Osborne, R; Pérez-Farrera, MA	2007	Focus on Ceratozamia norstogii	Encephalartos 90: 13-15
Osborne, R; Randall, L	2007	Focus on Macrozamia concinna	Encephalartos 89: 8-12
Osborne, R; Randall, L; Chemnick, J	2006	Focus on Macrozamia johnsonii	Encephalartos 85: 9-180
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Osborne, R; Salatino, A; Salatino, MLF	1989	Alkanes of foliar epicuticular waxes of the genus Encephalartos.	Phytochemistry 28(11): 3027-3030	[Abstract]
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Osborne, R; Santana, RM	1995	Focus on Microcycas calocoma	Encephalartos 42: 4-11
Osborne, R; Stevens, JF	1996	Epicuticular waxes and glaucousness of Encephalartos leaves.	Phytochemistry 42(5): 1335-1339	[Abstract]
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Osborne, R; Tang, W	2009	Focus on Zamia polymorpha	Encephalartos 98: 14-19
Osborne, R; Tomiyama, H	1995	Focus on Cycas revoluta	Encephalartos 41: 5-15
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Osborne, R; Vázquez-Torres, M	2009	Focus on Ceratozamia euryphyllidia	Encephalartos 96: 10-14
Osborne, R; Vovides, A	2007	Focus on Zamia inermis	Encephalartos 91: 13-18
Osborne, R; Vovides, A	2010	Focus on Ceratozamia mexicana	Encephalartos 100: 29-34
Osborne, R; Vovides, A	2010	Focus on Zamia loddigesii	Encephalartos 99: 16-20
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The World List of Cycads A Comprehensive Taxonomic Reference

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The World List of Cycads
A Comprehensive Taxonomic Reference