Ancient in origin and once widespread on Earth, today cycads comprise few living survivors in limited distributions in the tropics and subtropics. A study of these extant members and the cycad fossil record dating back to over 250 million years ago has revealed that cycads have remained relatively unchanged throughout their long history. Indeed, cycads are the sister group to all other extant seed groups, and an understanding of their evolution can shed light on the evolution of all modern plants. This volume, consisting of 34 papers, reports the work of 100 delegates from 15 different countries ― including 50 cycad experts from China ― who convened in Shenzhen, China for The 9th International Conference on Cycad Biology (Cycad 2011). The Conference covered eight main study areas: Genetics and Genomics, Conservation, Taxonomy and Phylogeny, Ecology, Horticulture, Toxicology, Economic Botany, and Information Management. Central to the Conference was the International Union for Conservation of Nature (IUCN)/Special Survival Commission (SSC)―Cycad Specialist Group, which met to update information on cycads on the Red List for 2011.
Papers included in this Digital Download are listed below. For a complete list of papers produced from cycad proceedings published by NYBG Press, click here.
Comparative Studies of Tracheary Element Structure of Some Gymnosperms with Angiosperms
Yu-Yuan Huang, Yan-Hua Han, Li-Jun Wei, and Jia-Zhuo Wang
http://dx.doi.org/10.21135/893275389.002
Anatomical Description of the Cytoplasmic Connections Between the Transfer Cells and the Central Cell During Its Growth Stages in Ceratozamia mexicana Brongn. and Zamia furfuracea L.f. (Cycadales)
MarÃa Ydelia Sánchez-Tinoco, Mark Engleman, and Andrew P. Vovides
http://dx.doi.org/10.21135/893275389.003
Development Cycle of the Ovule and Seed of Zamia furfuracea L.f. (Cycadales)
MarÃa Ydelia Sánchez-Tinocom, Andrew P. Vovides, and Mark Engleman
http://dx.doi.org/10.21135/893275389.004
Spines and Prickles
Dennis Wm. Stevenson
http://dx.doi.org/10.21135/893275389.005
An Introduction to the IUCN Species Information System Database as the Platform for Cycad Red List Assessments
J. De Wet Bösenberg and John S. Donaldson
http://dx.doi.org/10.21135/893275389.006
Botanic Gardens Cycad Collections: 4th GBGC Symposium Report
Andrew P. Vovides, M. Patrick Griffith, Dennis Wm. Stevenson, Nan Li, Yong Li, Shuijiao Fang, Dan Qian, Zhirong Zhong, Aldo Moretti, and Karin van der Walt
http://dx.doi.org/10.21135/893275389.007
Range, Density, and Threatened Status of Cycas nongnoochiae
Thomas E. Marler, Anders J. Lindström, and Wes Field
http://dx.doi.org/10.21135/893275389.008
Cycas debaoensis Conservation Project—A Village-Based Approach
William Tang, Nian Liu, Anders Lindström, Limei Tang, and Michael A. Calonje
http://dx.doi.org/10.21135/893275389.009
Cycad Ethnobotany in South Africa: Complexities with Identifying and Quantifying Species
Stephen R. Cousins, Vivienne L. Williams, and Ed T. F. Witkowski
http://dx.doi.org/10.21135/893275389.010
Impact of Disturbance on the Demography of the Endangered Species Ceratozamia mexicana Brongn.
Andrés Rivera-Fernández, Lourdes Georgina Iglesias-Andreu, Lázaro R. Sánchez-Velásquez, Pablo Octavio-Aguilar, Mario Vázquez-Torres, N. Flores-Estévez, and Mauricio Luna-RodrÃguez
http://dx.doi.org/10.21135/893275389.011
Effect of Disturbance on Population Dynamics of Mexican Cycads
Pablo Octavio-Aguilar, Andres Rivera-Fernández, Lourdes Georgina Iglesias-Andreu, Andrew P. Vovides, Miguel �ngel Perez-Farrera,
Manuel MartÃnez-Melendez, and Jorge González-Astorga
http://dx.doi.org/10.21135/893275389.012
Understanding Life History of Zamia Species Using Data from Field Studies and Botanical Collections
Cristina Lopez-Gallego
http://dx.doi.org/10.21135/893275389.013
Hydraulic Determination of Leaf Nutrient Concentrations in Cycads
Yong-Jiang Zhang, Lawren Sack, Guillermo Goldstein, and Kun-Fang Cao
http://dx.doi.org/10.21135/893275389.014
The NEEDLY Gene Is Associated with Sexual Expression in Ceratozamia mexicana Brongn. (Zamiaceae)
N. G. Sánchez-Coello, Lourdes Georgina Iglesias-Andreu, M. Luna-Rodriguez, Pablo Octavio-Aguilar, M. Vázquez-Torres, Andres Rivera-Fernández, and J. Adame-GarcÃa
http://dx.doi.org/10.21135/893275389.015
Using the Genetic Variation of Cycas taitungensis, an Endangered Island Cycad, to Evaluate Ex Situ Conservation Strategies
Pei-Chun Liao, Li-Ping Ju, Ya-Zhu Ko, Mei-Hui Chen, Yu-Pin Cheng, and Yu-Chung Chiang
http://dx.doi.org/10.21135/893275389.016
Multilocus Genome Evidence for a Paraphyletic Relationship and Past Interspecific Gene Flow Between Species of CycasSection Asiorientales
Yu-Chung Chiang, Bing-Hong Huang, Nan Li, Yi-Qing Gong, Hsien-Hui Shen, Shong Huang, and Pei-Chun Liao
http://dx.doi.org/10.21135/893275389.017
Conservation Genetics of the Cycad Cycas hongheensis
Meng-Meng Guan, Wei Zhou, and Xun Gong
http://dx.doi.org/10.21135/893275389.018
Phylogeography and Conservation Genetics of the Caribbean Zamia Clade: An Integrated Systematic Approach with SSRs and Single Copy Nuclear Genes
Alan W. Meerow, Dayana E. Salas-Leiva, Javier Francisco-Ortega, M. Patrick Griffith, Michael A. Calonje, Dennis Wm. Stevenson,
and Kyoko Nakamura
http://dx.doi.org/10.21135/893275389.019
DNA Barcoding Africa’s Endemic Cycads
Philip Rousseau, Piet J. Vorster, Damon P. Little, and Michelle van der Bank
http://dx.doi.org/10.21135/893275389.020
Provenance Investigation and Genetic Diversity in Cycas szechuanensis
Yi-Qing Gong, Nan Li, and Wen-Bo Liao
http://dx.doi.org/10.21135/893275389.021
Spent Coffee Grounds, Insect Control, and Plant Health in Cycads
Tracy Magellan, M. Patrick Griffith, Chad E. Husby, and Stella Cuestas
http://dx.doi.org/10.21135/893275389.022
Cycad Sex Ratios at Montgomery Botanical Center
Claudia Calonje, Michael A. Calonje, and Chad E. Husby
http://dx.doi.org/10.21135/893275389.023
Evaluating Inorganic Container Media for Cultivation of Cycads
Chad E. Husby, Vickie Murphy, Claudia Calonje, and Michael A. Calonje
http://dx.doi.org/10.21135/893275389.024
Risk Analysis on Cycad Diseases in a Global World
Xinrong Wang, Weijie Ma, Nan Li, Xiaocong Lian, Letian Zhu, Si Sun, Chen Chen, and Yongsan Zeng
http://dx.doi.org/10.21135/893275389.025
Factors Affecting Seed Production and Viability in Threatened Species of Encephalartos: Comparative Tests of Pollen Viability and Synchrony with Pollination Drop Formation in E. latifrons Lehm. and E. altensteinii Lehm.
Phakamani Xaba and John S. Donaldson
http://dx.doi.org/10.21135/893275389.026
Thermogenesis Patterns in Selected Cycas Species
Irene Terry, Claudia Calonje, Michael A. Calonje, and Thomas E. Marler
http://dx.doi.org/10.21135/893275389.027
Reproductive Phenology of Zamia L.: A Comparison Between Wild Cycads and Their Cultivated Counterparts
James A. R. Clugston, M. Patrick Griffith, Gregory J. Kenicer, Chad E. Husby, Michael A. Calonje, Damon P. Little, and Dennis Wm. Stevenson
http://dx.doi.org/10.21135/893275389.028
An Overview of the Role of Cone Volatiles in the Pollination Ecology of Encephalartos Lehm.
Terence N. Suinyuy, John S. Donaldson, and Steven D. Johnson
http://dx.doi.org/10.21135/893275389.029
Heat Production in Male Cones of Seven Asian Cycas Species (Cycadales)
William Tang
http://dx.doi.org/10.21135/893275389.030
Season and Frequency of Cycas micronesica Leaf and Reproductive Events
Nirmala Dongol and Thomas E. Marler
http://dx.doi.org/10.21135/893275389.031
Studies of the Conservation Process and Taxonomy of Cycas baiseensis and Cycas debaoensis
Yu-Yuan Huang
http://dx.doi.org/10.21135/893275389.032
Scouting the Philippine Islands for Cycas
Thomas E. Marler and Anders J. Lindström
http://dx.doi.org/10.21135/893275389.033
Novel Species of Cycas (Cycadaceae) from Mindanao Island, Philippines
Esperanza Maribel G. Agoo, Domingo A. Madulid, and John Rey Callado
http://dx.doi.org/10.21135/893275389.034
The World List of Cycads
Dennis Wm. Stevenson, Leonie Stanberg, and Michael A. Calonje
http://dx.doi.org/10.21135/893275389.035
