1270 Wisconsin Academy of Sciences, Arts and Letters. 
from node to node; spore-mass pale, ochraceous; spores nearly 
smooth, colorless, 5-7 
He says that this seems to be the most common Cribraria in 
the Mississippi valley, and that it is generally distinguished by 
the scant calyculus and the beautiful richness of its complex net; 
that the calyculus is often entirely absent, and this would seem 
to be the typical condition. The rather large sporangia, 0.6 
mm., and the especially numerous radiating threads, seem to be 
the most distinctly diagnostic characters. 
Lister places this as a variety dictydioid.es of C. intricata 
Schrad, He finds 1 the cup almost or quite obsolete; the nodes 
in the lower part of the net elongated and confluent, forming 
ribs converging to the apex of the stalk. 
Massee: gives as the most distinctive characteristics: perman¬ 
ent ribs broad and flattened below, anastomosing laterally, filled 
with granules, passing upwards into numerous elongated or ir¬ 
regularly angular, prominently convex, colored nodes containing 
granules, and connected at various points by very thin, color¬ 
less threads; the spores minutely verrucose. 5-7y in diameter. 
The variability of the calyculus makes this species sometimes 
difficult to determine. In one collection that I have, the caly¬ 
culus is entirely absent, the sporangia having only ribs and 
nodules. In another, the calyculus is quite noticeable. The 
spores I find to be colorless and about by in diameter. 
Our specimens are on much-decayed wood, and were found in 
Yilas woods in July 1904, and at Mauston, in June 1905. 
Cribraria tenella Schrader. 
1797. Cribraria. tendla Schrad., Nov. Gen. PI. , p. 6 
Mach ride: “ Sporangia gregarious, small, 0.4-0.5 mm. in di¬ 
ameter, 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 costae only con¬ 
nected 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 oc¬ 
casional or numerous free ends: spores in mass olivaceous-ochra- 
ceous, under the lens pallid, globose, smooth, 5-7y. Generally 
