348 A Monograph of the Myobogastreb. 



PLATE 4. 



FIG. 89. Choivdrioderma niveum, Rost., plants, x 40. 

 90. CJwndrioderma Trevdyani, Rost., plants, x 30. 



91. Spore of same, x 1200. 



92. Clwndrioderma radiatum, Rost., plants, x 40. 



93. Didymium tussilaginis, Mass., plants, x 40. 

 94. Portion of capillitium and spores of same, x 400. 

 95. Swollen angles of capillitium of same, showing crystals of lime, 



x 1200. 



96. Physarum lewophaeum, var. violascens, Rost, plants, x 40. 

 97. Didymium Listeri, Mass., plants ; nat. size. 



98. Portion of capillitium and spores of same, x 400. 

 99. Section of same, x 40. 



100. Spore of same, x 1200. 



101. Crystals of lime from wall of sporangium of same, x 400. 



102. Didymium dnbium, Rost., portion of capillitium, x 400. 



103. Cribraria ritfa, Rost., plant after the spores have been blown 

 away, x 80. 



104. Oribrarm anrantiaca, Schrad., plant after the spores have been 



blown away, x 80. 



105. Cribraria aryillacea, Pers., plants, x 40. 



106. Portion of inner permanent wall of sporangium of same, x 400. 

 107. Spore of same, x 1200. 



108. Spore of Enteridium Rozeanum, Wing., x 1200. 

 109. Cribraria purpurea, Schrad., portion of permanent wall of 



sporangium, x 400. 



110. Cribraria, macrocai-pa, Schrad., x 80. 

 111. Siplwptychinm Casparyi, Rost., showing the prismatic sporangia 



with .slightly convex apices, some have the lateral wall removed 



showing the long, slender, central columella with its lateral 



branches, x 60. 



112. Stemonitis dictyospvm, Rost., spore, x 1200. 



113. A rcyria fitliyinea, Mass., portion of capillitium, x 750. 



PLATE 5. 



FIG. 114. Perichaeiia corticalis, Mass., sporangia of pale form, x 40. 



,, 115. Sporangium of dark form of same, x 40. 



116. Spores and portion of capillitium of same, x 350. 



117. Spore and portion of capillitium of same, x 1200. 



118. PerichaeiM depressa, Lib., sporangia showing dehiscent lid, x 40. 



119. Sporangia of same, seen from above, x 40. 



120. Spores and portion of capillitium of same, x 350. 



