THE BOTANICAL REVIEW
Volume 70, Number 1, January-March 2004
1 Introduction and Dedication
Dennis Wm. Stevenson.
5 Comparative Development of the Spermatozoids of Cycads and Ginkgo
bilobaKnut J. Norstog, Ernest M. Gifford, and Dennis Wm. Stevenson
16 Mycorrhizae Are Present in Cycad Roots
JackB. FisherandAndrewP. Vovides
24 Seed Coat Anatomy of Ceratozamia mexicana (Cycadales)
Maria Y delia Sanchez-Tinoco and E. Mark Engleman.
39 A Biotechnology Strategy for Medium- and Long-Term Conservation of
CycadsRichard E. Litz, P. A. Moon, E. M. Benson, J. Stewart, and Victor M. Chavez.
47 Effect of Gelling Agent on Growth and Development of Ceratozamia hildae
Somatic EmbryosP.A. Moon, RichardE. Litz, and Victor M. Chavez
54 Biochemical Characterization of Developmental Stages of Cycad Somatic
EmbryosI. Vargas-Luna, G. Ortiz-Montiel, V. M. Chavez, R. E. Litz, and P. A. Moon.
63 Leaf Physiology of Shade-Grown Cycas micronesica Leaves Following
Removal of ShadeThomas E. Marler.
72 The Response of Ultrastructure and Function of Chloroplasts from Cycads to
Doubled CO2 ConcentrationBao- Yu Zuo, Quan Zhang, Gui-Zhen Jiang, and Chia-Jui Chen.
79 Effects of Varying Shade and Fertilizer on the Growth of Zamia jloridana A.
DC.B. Dehgan, F. C. Almira, A. E. Dudeck, and B. S,chutzman