Botanical (3a3ette 



a /ftontbls Journal Mmbxacirxi 



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Issued Decemfcer 22, 1902 



CONTENTS 



A MORPHOLOGICAL STUDY OF CERTAIN ASCLEPIADACEAE. Contributions 



FROM THE Hull Botanical Laboratory. XLI (with plates xiii-xv). Theodore 



C Frye - - - - - - - > . ,. 



THE ROOT-HAIRS, CAP, AND SHEATH OF AZOLLA (with tlate xvi). R. G. Leavitt 



STUDIES IN THE FERTILIZATION OF PHYCOMYCETES. Contributions from the 



Hull Botanical Laboratory. XLII (with plate xvii). Frank Lincoln Stevens) 



389 

 414 



figures), Edward W, Berry 



NOTES ON SASSAFRAS (with plate xviii and four 

 BRIEFER ARTICLES. 



A Date-Leaf Boat of Arabia (with three text figures). David G. Fairchild 

 A Variable Larkspur. T, D, A, Cockerell . , . - _ 



CURRENT LITER A TURE. 



MIN^OR NOTICES - • - - - - - - - 



NOTES FOR STUDENTS -.-.---- 



NEWS -.-•-.--.,. 



420 

 426 



45J 

 453 



455 

 457 



467 



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