J 



VOL 33 FEBRUARY, 1906 NO. 2 



BULLETIN 



OF THE 



TORREY BOTANICAL CLUB 



<£bitor 



John Hendley Barnhart 



Associate <£tiitor£ 



Alexander William Evans William Alphonso Murrill 



Tracy Elliot Hazen Herbert Maule Richards 



Marshall Avery Howe Anna Murray Vail 



CONTENTS 



Studies in etiolation. (Plates 4 and 5.) . AUGUSTINE DAWSON SELBY 67 



Studies on color in plants ... HENRY KRAEMER 77 



The influence of moisture upon the formation of roots by cuttings of ivy. 



HARRIET RANDOLPH 93 



The species of Lycopodium of the American tropics. 



LUCIEN MARCUS UNDERWOOD and FRANCIS ERNEST LLOYD 101 



INDEX TO AMERICAN BOTANICAL LITERATURE 125 



PUBLISHED FOR THE CLUB 



TUB NEW ERA PI»INTIN« COMPANT 



LANCASTER. PA. 



