CRIB R ARIA 167 



Schrader defined this beautiful form chiefly by its shape. 

 This, though variable, is yet generally so far pyriform as to 

 show distinct contraction toward the stipe. The well-defined 

 calyculus is narrowed below and eroded or denticulate above, 

 the net open, uniform, the stipe rather stout, short, and dis- 

 tinctly furrowed, rising often from a small hypothallus. In the 

 formation of the net the species suggests C. tenella, but the 

 latter species is much smaller, has a different stem, much longer 

 and unfurrowed ; the calyculus is more nearly that of some 

 forms of C. intricata, but is better defined, passing into the net 

 very abruptly by the simple intervention of projecting teeth. 



Apparently very rare. My specimens are from New York, 

 through the courtesy of Dr. Rex. Virginia, North Carolina. 



9. CRIBRARIA TENELLA Schrader. 



PLATE XVII., Fig. 5. 

 1797. Cribraria tenella Schrad., Nov. Gen. PL, p. 6. 



Sporangia gregarious, small, .4-. 5 mm. in diameter, olivaceous 

 or ochraceous, long-stipitate, nodding ; stipe slender, dark brown 

 or blackish, very long, reaching 6 mm., weak and flexuous; 

 calyculus variable, sometimes well defined, brown, costate, 

 sometimes represented by the costas only connected by a thin, 

 transparent membrane ; net well differentiated, the meshes 

 small, irregular, the nodes small, black, more or less globular, 

 prominent, connected by transparent threads with occasional or 

 numerous free ends ; spores in mass, olivaceous-ochraceous, 

 under the lens pallid, globose, smooth, 5-7 p. 



Very common eastward and south, on the weathered surface 

 of rotten wood. Generally easily recognized by its very long 

 stipe, small, globose sporangium dotted with numerous small 

 roundish nodules projecting plainly above the general surface. 

 The obconic calyculus is always represented in the outline if not 

 in definite structure. 



New England, New York, Pennsylvania, Ohio, Tennessee, 

 Illinois, Missouri, Iowa. 



