34 THE NORTH AMERICAN SLIME-MOULDS 



mature. The capillitium is white, physaroid. The spores furnish 

 the distinguishing character. Sometimes globose, about 9-10. They 

 are most of them definitely and permanently affected in shape by the 

 fact of cluster-association, narrower in the direction of the cluster 

 center. The indications are that these may become globose with 

 maturity. 



Colorado, — Bethel; Scotland. 



3. Badhamia DECIPIENS (Curtis) Berk. 



1848. Physarum decipiens Curtis, Am. Jour. Set., VI., p. 352. 



1873. Badhamia decipiens Berk., Grev., II., p. 66. 



1873. Physarum chrysotrichum Berk. & C, Grev. II., p. 66. 



1876. Badhamia chrysotricha (Berk. & C.) Rost., App., p. 4. 



Sporangia gregarious, depressed-spherical or ovate, sessile, occa- 

 sionally plasmodiocarpous, dull yellow, roughened by the rather 

 large numerous calcareous scales; columella none; capillitium dull 

 orange, strongly calcareous, only slightly widened at the nodes; 

 spore-mass black; spores pale violet, minutely spinulose, free, 10- 

 12 /x. 



Among badhamias this and the next species are at once distin- 

 guished by the color. If the brief description {Grev., II., p. 66) can 

 be regarded as defining anything, this is the same as P. chrysotrichum 

 Berk. & C. It resembles somewhat P. serpula Morg., but differs ex- 

 ternally in color and in the surface scales, which are not perceptible 

 in the Physarum. The present species also resembles Cienkoiuskia 

 reticulata (Schw.) Rost., but has a different capillitium. See under 

 that species. 



Chiefly eastern and American. New England, Pennsylvania, Ohio, 

 South Carolina; reported recently also from Sweden and Germany. 



4. Badhamia nitens Berk. 



1852. Badhamia nitens Berk., Trans. Linn. Soc, XXI., p. 153. 

 1863. Badhamia inaurata Currey, Trans. Linn. Soc, XXIV., p. 156. 

 1873. Badhamia nitens Berk., Rost, Mon. App., p. 3. 



Sporangia gregarious or closely crowded, globose or depressed- 



