Ubc Botanical (Bagette 



B ^ontblB Journal >6mbracing 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. 



Vol. XLV, No. 6 



Issued June 27, 1 908 



CONTENTS FOR JUNE J908 



RELATION OF MEGASPORES TO EMBRYO SACS IN ANGIOSPERMS. Contributions 



FROM THE Hull Botanical Laboratory no. /o/in M, Coulter - - - - - l^i 



THE PHYSIOLOGY AND DEVELOPMENT OF SOME ANTHRACNOSES (with seventeen 



FIGURES AND PLATE xi). Claude Wilbur Edgerion 



BRIEFER ARTICLES 



On the Contents of the Pollen Chamber of a Specimen of Lasenosioma ovoides 



67 



(with tw^o figures). Margaret Benson 



409 



The Embryo of Ceratozamia: A Physiological Study. Contributions from the 



Hull Botanical Laboratory hi (with seven figures). Helen A. Dcreiy - 412 



CURRENT LITERATURE 



BOOK REVIEWS 



'417 



north American gymnosperms 



NOTES FOR STUDENTS 



NEWS 



418 



423 



of 



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