CONTRIBUTIONS FROM THE NEW YORK BOTANICAL 



GARDEN— No. 193 



A NOTE ON THE STRUCTURAL 



DIMORPHISM OP SEXUAL AND TETRA- 



SPORIC PLANTS OF GALAXAURA 



OBTUSATA 



MARSHALL A. HOWE 



NEW YORK 

 1917 



Reprinted, without ohange of paging, from Bulletin of the Torbbt Botanical Club 



43: 621-624. Janiiary 10, 1917. 



