VOL. 33 SEPTEMBER, 1906 NO. 9 



BULLETIN 



OF THE 





TORREY BOTANICAL CLUB 



€Ditor 



John Hendley Barnhart 



&£$'ociate suitors 



Alexander William Evans William Alphonso Murrill 



Tracy Elliot Hazen Herbert Maule Richards 



Marshall Avery Howe Anna Murray Vail 



CONTENTS 



Pteridophytes obserred during three excursions into southern Florida. 



ALVAH AUGUSTUS EATON 455 

 The behavior of the pollen-tube in Houstonia coerulea. 



CHESTER ARTHUR MATHEWSON 487 

 Studies in the North American Convolvulaceae, II. The genus Opercuiina. 



HOMER DOLIVER HOUSE 495 

 INDEX TO AMERICAN BOTANICAL LITERATURE 505 



PUBLISHED FOR THE CLUB 



THE NEW ERA PRINTING COMPANY 



LANCASTER, PA. 



