UNIVERSITY OF CALIFORNIA PUBLICATIONS 



BOTANY 



Vol. 1, pp. 141-164, Pis. 15, 16 November 20, 1902 



TWO NEW ASCOMYCETOUS FUNGI 

 PARASITIC ON MARINE ALG^.* 



BY 



Minnie Reed. 



LIBRARY 

 NEW YORK 

 BOTANICAL 



GARDEN 



CONTENTS. 



PAGE 



I. — Introduction 141 



II.— The Ulva-Composite 142 



III. — The Prasiola-Composite 151 



IV. — Relation of the Fungus to the Alga 157 



v.— Geographical Distribution , 159 



VI. — Descriptions 160 



VII.— Methods 160 



VIII.— Explanation of Plates 162, 164 



INTRODUCTION. 



The association of fungi with marine algae either in a 

 symbiotic or a strictly parasitic relation is not common, as thus 

 far but comparatively few cases have been reported. For some 

 unexplained reason fungi seem to prefer to be associated with 

 fresh water algae, so that nearly all lichen -gonidia are fresh 

 water species. 



*Presented in partial fulfillment of the requirements for the degree of M.S., 

 University of California, December, 1899. Prepared under the direction of Professor 

 W. A. Setchell. 



