CRIBRARIA 209 



spores pale red in mass. Schrader's original description calls for a 

 brown form with yellow spores, which is in agreement with the speci- 

 mens examined. The entire fructification becomes purple, however, 

 when mounted in potassium hydroxide. 



Not common. New England, Ontario, Pennsylvania, Ohio, Iowa, 

 Missouri, California; Europe, southern Asia, Japan. 



4. Cribraria dictydioides Cooke &° Balf. 



in Massee, Mon. 65. 1892. 

 PI. XIV, Figs. 340, 341, 342. 



1894. Cribraria intricata Schrad., var. dictydioides (Cke. & Balf.) List., Myce- 

 tozoa 144. 



Sporangia gregarious, dusky brown, globose, 0.5-0.7 mm. in di- 

 ameter, cernuous, stipitate; stipe long, slender, furrowed, tapering 

 upwards, dull brown in color; hypothallus small; calyculus rudimen- 

 tary or represented only by irregular, node-like ribs; network delicate, 

 the meshes small, few-sided; nodules large, prominent, brown, ir- 

 regular, with several radiating, free, projecting threads, beside the 

 single continuous filaments which pass from node to node; spore- 

 mass pale, ochraceous; spores nearly smooth, colorless, 5-7 ix. 



This seems to be the most common Cribraria in the Mississippi 

 valley. It is generally distinguished by the lack of a calyculus and 

 the beautiful richness of its clear delicate net. The stellate nodules, 

 especially above, emit rays in all directions, but are, notwithstanding, 

 united by single, unpaired threads only. The rather large sporangia, 

 the nodes joined by single threads, the remaining radiant threads, 

 many or few, but very short — these seem to be the most distinctly 

 diagnostic characters, and these are sufficiently constant to separate 

 this species easily from C. intricata on the one hand and C. tenella on 

 the other. 



Abundant on rotten logs of every sort, especially oak. New York 

 and Ontario to Wisconsin, North Carolina and Nebraska, Washington; 

 Europe, West Africa, southern and eastern Asia. 



5. Cribraria intricata Schrad. 



Nov. Gen. PI. 7, pi. 3, fig. 1. 1797. 

 PL XIV, Figs. 337, 338, 339. 



1808. Trichia intricata (Schrad.) Poiret, in Lam. Encycl. 8 : 56. 



Sporangia gregarious, globose, large, 0.6-1 mm. in diameter, nut- 

 brown or olivaceous, erect or nodding, stipitate; stipe long, 1.5-3 mm., 



