LITERATURA
CITADA
Alejandre-Rosas,
J. A.; M. Y. Sánchez-Tinoco & M. Vázquez-Torres.
1990. Estructura poblacional de Ceratozamia mexicana Brongn.
(Zamiaceae) en un bosque del centro de Veracruz. La Ciencia
y El Hombre (Universidad Veracruzana, México) 5: 93-112.
Bell,
E. A. 1993. From Lathyrus to Cycas: a search for dietary neurotoxins.
Pp. 16-18 in: Proceedings of Cycad 90, The 2nd International
Conference on Cycad Biology. Stevenson, D. W. & K. J. Norstog
(Eds). Palm & Cycad Societies of Australia, Milton.
Beltrán,
J. & L. Torres-Hernández. 1995. Herbivoría
de Eumaeus debora Hubner. (Lycaenidae) sobre Ceratozamia mexicana
Bröng. en un bosque mesófilo de montaña.
La Ciencia y El Hombre (Universidad Veracruzana) 19: 87-93.
Chamberlain,
1919. The living cycads. Hafner, New York
Chavez,
V. M. & R. E. Litz. 1988. Leaf production and the cost of
reproduction in the neotropical rain forest cycad, Zamia skinneri.
J. Ecol. 76: 1153-1163.
Chavez,
V. M.; R. E. Litz & K. Norstog. 1992. Somatic embryogenesis
and organogenesis in Zamia fischeri, Z. furfuraceae and Z. pumila.
Plant Cell Tissue Organ Cult. 30: 99-105.
Chavez,
V. M.; R. E. Litz, M. Monroy, P. A. Moon & A. P. Vovides.
1998. Regeneration of Ceratozamia euryphyllidia (Cycadales,
Gymnospermae) plants from embryonic leaf cultures derived from
mature-phase trees. Plant Cell Reports 17: 612-616.
Chavez,
V. M.; R. E. Litz, P. A. Moon & K. Norstog. 1992. Somatic
embryogenesis from leaf callus of the gymnosperm Ceratozamia
mexicana var. robusta (Miq.) Dyer (Cycadales). In Vitro Cell
Dev. Biol. 28P: 59-63.
Clark,
D. A. & D. B. Clark. 1987. Temporal and environmental paterns
of reproduction in Zamia skinneri, a tropical rain forest cycad.
J. Ecol. 75: 135-149.
Crane,
1988. Major clades and relationships in the "higher"
gymnosperms. En: Origin and Evolution of Gymnosperms. Beck,
C. B. (Ed.) pp.218-272. Columbia University Press. New York.
Dehgan,
B. & B. Schutzman. 1983. Effect of H2SO4 and GA3 on seed
germination of Zamia furfuracea. HortScience 18: 371-372.
Dehgan,
B. & B. Schutzman. 1989. Embryo development and germination
of Cycas seeds. J. Amer. Soc. Hort. Sci. 114: 125-129.
Dehgan,
B. & F. Almira. 1993. Horticultural practices and conservation
of cycads. Pp. 322-328 in: Proceedings of Cycad 90, the 2nd
International Conference on Cycad Biology. Stevenson, D. W.
& K. J. Norstog (Eds.). Palm & Cycad Societies of Australia,
Milton.
Donaldson,
J. S. 1995a. Matched photographs as a means of assessing long-term
changes in cycad distribution and abundance. Pp. 20-23 in: Cycad
Conservation in South Africa. Donaldson, J. S. (Ed.). Cycad
Society of South Africa, Matieland.
Donaldson,
J. S. 1995b. Undestanding cycad life histories: an essential
basis for successful conservation. Pp. 8-13 in: Cycad Conservation
in South Africa. Donaldson, J. S. (Ed.). Cycad Society of South
Africa, Matieland.
Duncan,
M. W. 1993. Cycads as a possible cause of neurological disorders
in the Western Pacific. Pp. 19-23 in: Proceedings of Cycad 90,
the 2nd International Conference on Cycad Biology. Stevenson,
D. W. & K. J. Norstog (Eds.). Palm & Cycad Societies
of Australia, Milton.
Duncan,
M. W., J. C. Steele, I. J. Kopin & S. P. Markey. 1990. Amino-(methylamino)-propanoic
acid (BMAA) in cycad flour: an unlikely cause of amyotropic
lateral sclerosis and parkinsonism-dementia on Guam. Neurology
40: 767-772.
Eckenwalder,
J. 1980a. The cycads: the prime of their lives. Bull. Fairchild
Tropical Garden 35 (1): 11-19.
Eckenwalder,
J. 1980b. Dispersal of West Indian cycad, Zamia pumila L. Biotropica
12: 79-80.
Fisher,
J. B. & A. P. Vovides. (En prensa). Mycorrhizae Are Present
in Cycad Roots. In: Proc. Of the 5th International Conference
on Cycad Biology. Stevenson, D. W. (Ed.). Mem. New York Bot.
Gard.
Gómez-Pompa,
.P. Vovides, N. Ogata, R.Castro-Cortes, J.A. Gonzales &
A. Corona 1997. Cycads: The enndangered living fossils. Interactive
CD-ROM CONABIO. Mexico DF.
Grove,
T. S.; A. M. O’Cconnell, N. Malajezuk. 1980. Effects of
fire on the growth, nutrient content and rate of nitrogen fixation
of the cycad Macrozamia riedlei. Aust. J. Bot. 28:271-281.
Jones,
D. L. 1993. Cycads of the world. Reed. Chatsworth, Australia.
Negrón-Ortiz,
V. & G. Breckon. 1989. Population structure in Zamia debilis
(Zamiaceae) 1: Size classes, leaf phenology and leaf turnover.
Amer. J. Bot. 76: 891-900.
Norstog,
K. J. & P. K. S. Fawcett. 1989. Insect-cycad simbiosis and
its relation to the pollination of Zamia furfuracea (Zamiaceae)
by Rhopalotria mollis (Curculionidae) Amer. J. Bot. 76: 1380-1394.
Norstog,
K. J. & T. J. Nichollson. 1997. The biology of the cycads.
Cornell University Press. Ithaca.
Norstog,
K. J., D. W. Stevenson & K. J. Niklas. 1986. The role of
beetles in the pollination of Zamia furfuracea L. fil. (Zamiaceae)
Biotropica 18: 300-306.
Ornduff,
R. 1985. Male-based sex-ratios in the cycad Macrozamia reidlei
(Zamiaceae). Bull. Torrey Bot. Club 112: 393-397.
Ornduff,
R. 1987. Sex ratios and conong frequency of the cycad Zamia
pumila L. (Zamiaceae) in the Dominican Republic. Biotropica
19: 361-364.
Ornduff,
R. 1990. Geographic variation in reproductive behavior and size
structure of the Australian cycad Macrozamia communis (Zamiaceae).
Amer. J. Bot. 77: 92-99.
Ornduff,
R. 1991. Coning phenology of the cycad Macrozamia riedlei (Zamiaceae)
over a five-year interval. Bull. Torrey Bot.
Club 118 6-11.
Ornduff,
R. 1992. Features of coning and foliar phenology, size classes,
and insect associates of Cycas armstrongii (Cycadaceae) in the
Northern Territory, Australia. Bull. Torrey Bot. Club 119: 39-43.
Ornduff,
R. 1996. Gender performance in a cultivated cohort of the cycad
Zamia integrifolia (Zamiaceae). Amer. J. Bot. 83: 1006-1015.
Pérez-Farrera,
M. A. 1994. Germinacion de Dioon merolae. Tesis de Lic. Escuela
de Biologia, UNICACH, Tuxtla Gtz.
Pérez-Farrera,
M. A. 1999. Dinámica de población de Ceratozamia
matudai Lund. (Zamiaceae) en la Reserva de la Biósfera
El Triunfo, Chiapas, México. Tesis de Maestria, ECOSUR.
San Cristobal, México.
Pérez-Farrera,
M. A.; A. P. Vovides & J. G. Alvarez-Moctezuma. 1999. A
study on seed germination of the cycad Dioon merolae (Zamiaceae).
The New Plantsman 6: 214-218
Pérez-Farrera,
M. A. & A. P. Vovides. 1997. Manual para el cultivo y propagación
de cycadas. INE-SEMARNAP Méxcio City 37pp.
Pérez-Farrera,
M. A. & A. P. Vovides. (en prensa). Spatial Distribution,
Population Structure and Fecundity of Ceratozamia matudai Lundell
(Zamiaceae) in El Triunfo Biosphere Reserve, Chiapas, Mexico.
Mem New York Bot, Gard.
Porter,
E. D. & H. J. Teas. 1971. Comparative radiometric effect
of emulsin, cycasin, methylazoxymethanol and X-rays in Zamia
integrifolia. Radiation Botany 11: 21-26.
Siniscalco
Gigliano, G. 1990. Chemotaxonomic significance of MAM glycosides
and mucilages in cycads. Pp. 123-131 in: D. W. Stevenson (Ed.).
The Biology, Structure and Systematics of the Cycadales. Vol.57
Mem. New York Bot. Gard.
Smith,
D. W. E. 1966. Mutagenicity of cycasin aglycone (Methylazoxymethanol),
a naturally ocurring carcinigen. Science 152: 1273-1274.
Stevenson,
D.W., R. Osborne, & K.D. Hill, 1993. The world list of cycads.
En: The Third International Conference on Cycad Biology. Vorster,
P. (Ed.). pp. 65-64. Cycad Society of South Africa, Stellenbosch.
Tang,
W. 1987. Insect pollination in the cycad Zamia pumila (Zamiaceae).
Amer. J. Bot. 74: 90-99.
Tang,
W. 1989. Seed dispersal in the cycad Zamia pumila in Florida.
Canadian Journal of Botany 67: 2066-2070.
Torres-Hernández,
L.; M- Vázquez-Torres, J. Alejandre & H. Barney.
1999. Las plantas silvestres del humedal de Alvarado y el uso
sustentable de los recursos: un ejemplo. Pp. 115-138 in: S.
M. Vázquez-Torres (ed.). Biodiversidad y Problemática
en el Humedal de Alvarado, Veracruz, México. Universidad
Veracruzana. Xalapa, México.
Vázquez-Torres,
M. 1989a. Aspectos etnobotánicos de las cicadaceas de
México. La Ciencia y El Hombre (Universidad Veracruzana,
México), No. 3.
Vázquez-Torres,
M. 1989b. Importancia biológica de las Cycadophyta (Cycadales:
Zamiaceae) y su situación en México. La Ciencia
y El Hombre (Universidad Veracruzana, México), No. 3:
79-92.
Vovides,
A. P. 1990. Spatial distribution, survival and fecundity of
Dioon edule (Zamiaceae) in a tropical deciduous forest in Veracruz,
Mexico. Amer. J. Bot. 77: 1532-1543.
Vovides,
A. P. 1991. Insect symbionts of some Mexican cycads in their
natural habitat. Biotropica 23: 102-104.
Vovides,
A. P. & C. Iglesias. 1994. An integrated conservation strategy
for the cycad Dioon edule Lindl. Biodiversity and Conservation
3: 137-141.
Vovides,
A. P.; C. Iglesias, M. A. Pérez-Farrera, M. Vázquez
Torres & U. Schippmann (En prensa.) Peasant nurseries: a
concept for an integrated conservation strategy for cycads in
Mexico. Darwin Technical Manual for Botanic Gardens. BGCI, London
Vovides
A. P. & C. Peters 1987. Dioon edule: La planta más
antigua de México. Ciencia y Tecnología: Ciencia
y Desarrollo 13: 19-24.
Vovides
A. P., N. Ogata, V. Sosa & E. Peña-García.
1997. Pollination of endangered Cuban cycad Microcycas calocoma
(Miq.) A. DC. Bot. J. Linn. Soc. 125: 201-210.
Vovides,
A.P, C. Iglesias,M.A. Pérez-Farrera, M. Vázquez
Torres & U. Schippmann 1999 Peasant nurseries: a concept
for an integrated conservation strategy for cycads in Mexico.
Darwin Technical Manual for Botanic Gardens. BGCI, London (In
press).
Whiting,
M. J. 1963. Toxicity of cycads. Economic Botany 17: 270-302.
