Z2C. 



ON THE 



DEVELOPMENT AND SYSTEMATIC ARRANGEMENT 



OF THE 



PITHOPHORACEiE 



A NEW ORDER OF ALGJE, 



BY 



VEIT BRECHER WITTROCK. 



WITH SIX PLATES. 



(Presented to the Royal Society of Upsala, the 13:th May 1876.) 



UPSALA 



PRINTED BY ED. BEELISG. 



1877. 



