The flfyxomyct'ft's of the Miami I'alley, Ohio. 143 



sporaiigiuin. This appears to be the species figured and 

 described by Rostafinski and by Massee. 



2. DiCTYDiUM LONGii'ES, Morg. u. sp. Sporangium large, 

 depressed-globose, the apex umbilicate, stipitate, cernuous, 

 dark purple in color ; calyculus usually wholly wanting, the 

 ribs united by weak fibers, which are easily torn asunder, 

 allowing the ribs to curl up inwards. vStipe very long, flexu- 

 ous, tapering upward, curved and twisted at the apex, dark 

 purple in color, standing on a thin hypothallus. vSpores in 

 the mass dark purple, globose, even, 5-7 mic. in diameter. 

 See Plate III, Fig. 12. 



Growing on rotten wood, mosses, etc. Sporangium .5-.7 

 mm. in diameter, the stipe three to five times as long. This 

 is a mucli larger species than the preceding ; it has a uniform 

 dark purple hue, the stipe is very long and much bent and 

 twisted, the ribs of the sporangium are soon torn apart and 

 rolled inward. 



