219 



Depsides and Depsidones 



455 Stictic Acid (Stictaic Acid, Pseudopsoromic Acid, Scopularic 

 Acid), CiaHi^Ofl, colorless microcrystals, m.p. 268° (dec). 



Lobaria pulmonaria Hoffm., L. oregana Miill. Arg., 

 Stereocaiilon nabewariense Zahlb., etc. 



Yasuhiko Asahina and Masai ti Yanagita, Ber. 67B 1965 

 (1934). 



456 Nornidulin (Ustin), Ci^Hi-O^Cla, hexagonal plates or prisms, 

 m.p. 185°. 



Aspergillus nidulans, NRRL No. 2006 



A little succinic acid was isolated from the same cul- 

 ture. 



F. M. Dean, John C. Roberts and Alexander Robertson, /. 

 Chem. Soc, 1432 (1954). 



457 Dechloronornidulin (Ustin II), CigHieOjCL, needles, m.p. 212- 

 214°. 



Partial structure: 



