VOL. 37 JUNE, 1910 NO. 6 
BULLETIN 
OF THE 
TORREY BOTANICAL CLUB 
€ditor 
MARSHALL AVERY HOWE 
Assoriate Editors \ 
JoHN HENDLEY BARVHART Tracy E:tiot HAZEN 
JEAN BROADHURST WILLIAM ALPHONSO MurriLt 
PHitip DoweELe CHARLES Louis POLLARD 
ALEXANDER WILLIAM EVANS HERBERT MAULE RICHARDS 
CONTENTS 
The effects of adding salts to the soil on the amount of non-available water. 
WIL T. BOVIE 273 
The embryo-sac of Pandanus coronatus. . . . DOUGLAS H. CAMPBELL 293 
Some new Hawaiian plants ....\.--..5.-+:- JOSEPH F. ROCK 297 
A new fossil fucoid. (Plate33). .......,- ARTHUR HOLLICK 305 
The name Buthotrephis gracilis Hall... .. - EDWIN W. HUMPHREYS 309 
Studies on the Rocky Mountain flora—XXII. - . PER AXEL ‘RYDBERG 313 
INDEX TO AMERICAN BOTANICAL LITERATURE .... oot Gag 
PUBLISHED FOR THE CLUBS 
THE NEW ERA PRINTING COMPANY 
LANCASTER, PA 
