Plate 54 



'"O 



9 



X 20 



^>\ K 



If X 600 



*-- .<• 



X HO 



X (KlO 





X I2(»<t 



^..iitju-- -'-c. 



>i'' 



PYKENULA NITIDA Ach. 



a Whole plant, b. Portion ol thallus and perithecia. c. Vertical section of 



thallus. d. Vertical section of peritheoium. e. Ascus and paraphyses. 



/. Spore. 



