t r 



Ubc Botanical Oasette 



a ilbontblg Journal :embracins all Departments of JSotanfcal Science 



Edited by John M. Coulter and Charles R. Barnes, with the assistance of other members of the 



botanical staff of the University of Chicago. 



VoU XLIV, No. 2 



Issued August 16, 1907 



CONTENTS 



ALTERNATION OF GENERATIONS AND THE MORPHOLOGY OF THE SPORE 



FORMS IN RUSTS (with plate vii). A. H. Christman 



L 



4 



DEVELOPxMENT OF THE WALLS IN THE PROEMBRYO OF PINUS LARICIO. Con- 

 tributions FROM THE Hull Botanical Laboratory. XCVI (with plates viii and ix). 



8i 



iV. Johanna Kildahl - - -.-• . - -I02 



UNDESCRIBED PLANTS FROM GUATEMALA AND OTHER CENTRAL AMERICAN 



REPUBLICS. XIX. John Donnell Smith io8 



MICROCYCAS CALOCOMA. Contributions from the Hull Botanical Laboratory. 



XCVII (with plates x-xiii and fourteen figures), Otis W. Caldwell - - - ii8 



APOGAMY in NEPHRODIUM. Contributions from the Hull Botanical Laboratory. 



XCVIII. Shigeo Yamanouchi ---_-,.----. 142 



CURRENT LITER A TURE 



BOOK REVIEWS 



plant breeding, progressus rei botanicae, 



minor notices 



NOTES FOR STUDENTS 



147 



152 



NEWS 160 



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