Cribraria 191 



mm. high, dark brown. Spores ochraceous or brownish, faintly 

 warted, 5-8 n diam. 



Var. notabilis Rex; Lister, Mycetozoa ed. 2. 182. 1911. 



Sporangia globose; nodes convex and prominent, rounded or 

 irregular, with slender connecting threads; stalks slender. 



Type locality: Europe. 



Habitat: On dead coniferous wood. 



Distribution: California, Colorado, *Connecticut, *Iowa, 

 Maine, New Hampshire, New York, *North Carolina, Ontario, 

 *Oregon, Pennsylvania, *South Dakota, *Tennessee, *Virginia, 

 ^Washington, ^Wyoming. 



Illustration: Lister, Mycetozoa ed. 3. pi. 144. 



This species has been frequently reported from North America, 

 but typical or representative examples are rare and confined to 

 those from mountainous regions. It is connected with C. auran- 

 tiaca by intermediate forms, and, when the sporangia of the latter 

 are piriform in shape, they have often been placed mistakenly 

 with C. piriformis. The important dififerences are the large 

 plasmodic granules in the cup and nodes of C. piriformis, and the 

 darker, brownish color of the spores in mass. The granules vary 

 in size, and are sometimes smaller, but are on an average twice 

 the diameter of those of C. aiirantiaca. Var. notabilis has very 

 large, prominent nodes, when representative, but there are inter- 

 mediate forms with smaller nodes that approach more nearly the 

 typical form. C. atrofusca is almost typical C. piriformis. The 

 large granules in the cup are arranged in narrow lines with clusters 

 of granules between them to form a series of encircling lines. 

 Variations in the arrangement of the granules are occasionally 

 observed, even to the extent that they may be uniformly dis- 

 tributed, and are not regarded as of specific importance. Speci- 

 mens collected by Dr. BrandzS. in Roumania, and regarded by 

 him as C. piriformis, have the granules in a broad band at the 

 margin of the calyculus. 



4. Cribraria dictyospora Martin & Lovejoy; Martin, Jour. Wash. 

 Acad. Sc. 22: 91. 1932. (N. Y. B. G. no. 7125, cotype 

 material.) 



Total height 1 to 2 mm. Sporangia gregarious, dark purplish 

 brown, erect or slightly nodding, globose, 0.4 to 0.8 mm. diam.; 

 calyculus occupying about one third of the spore-case, marked 



