The Myxomycetes of the United States. 407 



143. Arcyria nutans (Bull.) Curt., Cat., p. 113. 



Arcyria flava Pers., Obs., i, 85. Grev., t. 309. Schw., Am. Bor., 2335. 

 Spores -0075— -0083 mm . 

 On carious wood. Car. (Curt., Schw.) ; Boston (Farlow) ; Conn. 

 (Wright) ; N. York (Peck, Schw.) ; Penn. (Schw.). 



144. Arcyria versicolor Phillips, Grevillea, v, p. 115, t. 88, fig. 8. 



Arcyria vitellina Phillips, in Grevillea, v, p. 115, t. 88, fig. 7 (exclusive of 

 fig. d). 

 On bark and logs. California (Harkness). 



From comparison of authentic specimens, we are convinced 

 that there are no specific differences in the two forms A. 

 versicolor and A. vitellina. In the threads of the latter we 

 can find no structure like that of the figure 7, above cited in 

 part. 



145. Arcyria minor Schw., Am. Bor., 2341. 

 On soft wood. Bethlehem (Schw.). 



Genus 37. Lachnobolus Fr. 



146. Lachnobolus globosus (Schw.). 



Arcyria globosa Schw., Syn. Car., 400. Schw., Am. Bor., 2340. 

 Craterium globosum Fr., Sys. Myc, iii, 154. Curt., Cat., p. 112. 

 Nassula globosa Fr., S. V. S. 



Spores •0067 mm . 

 On corn-stalks, involucres of Castanea, etc. Car. (Schw., Curt.) ; Penn. 

 Schw.) ; N. York (Peck) ; Boston (Farlow). 



TNCEWTJE SEDIS. 



147. Lachnobolus cinereus Schw., Am. Bor., 2378. 

 On stems. Salem (Schw.) ; Car. (Curt.). 



Genus 38. Dermodium Rtfki. 

 Genus 39. Lycogala Mich. 



