Tbe Botanical Gazette 
a Monthly Journal Embracing all Departments of Botanical Science 
ted by Joun M. CouLTeR and CHarLes R. BARNES, with the Rat of other members of the 
botanical staff of the University of Chic 
Issued October 21, 1909 
ol. XLVII CONTENTS FOR OCTOBER 1909 No. 4 
EMBRYO SAC OF HABENARIA (wITH TWELVE FIGURES). William H. Brown = 241 
BE INFLUENCE OF TRACT ae ON THE oe ee Acs sinccharmipbeeie wave dhs Sar 
» IN STEMS. John S. Bord: 251 
E MODIFIABILITY OF a ION IN batcrhiss SEEDLINGS  siaeond FIVE 
FIGURES), Joseph VY. Ber, 275 
REMARKABLE duane yor EIGHT FIGURES). George F. Atkinson - — - - 283 
NDESCRIBED PLANTS FROM GUATEMALA AND OTHER CENTRAL AMERICAN 
REPUBLICS. XXII. John Donnell Smith 294 
FER ARTICLES 
3 NEw oe esha irik FOR USE IN PLANT PuYstoLodY Recta TWO Besar acs W. 
f EF. Gan “ 
301 
IRRENT as 
BS BOOK REVIEW. R 2 3 i 2 2 a : G Z F - 306 
ANISOPHYLLY. DESERT VEGETATION. ANIMAL GALLS. A DARWIN MEMORIAL VOLUME 
BEE NOR NOTICRS) LO ee eee 
Betas POR STUDENTS {0003 % AO a ee 
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