Explanation of Plates 305 



Plate 13 



Fig. L Diclydiaethalium plumheum X 6 (p. 215). The surface of an 

 aethalium showing cracks which appear on complete dessication. The cracks 

 reveal the component sporangia with traces of thfe threads hanging from the 

 apex of each sporangium. The color of the aethalium is ochraceous yellow. 



Fig. 2. Lycogala epidendrum var. tessellatum X 200 (p. 222). Showing 

 the chambered vesicles in the cortex. These are not present in the typical 

 form nor in var. exiguum. 



Fig. 3. Trichia favoginea X 6 (p. 225). A group of sessile, yellow spo- 

 rangia with yellow capillitium and spores. 



Fig. 4. Trichia floriformis X 4 (p. 235). A group of brownish red 

 sporangia on dark stalks. 



Fig. 5. Hemitrichia Vcspariuw X 6 (p. 239). A group of red sporangia 



on red stalks. 



Plate 14 



Fig. 1. Hemitrichia clavata X 6 (p. 241). Yellow sporangia with yellow 

 cups on dark, nearly black stalks. 



Fig. 2. Hemitrichia Serpula X 6 (p. 244). Sessile, net-like, yellow 

 plasmodiocarps. 



Fig. 3. Arcyria ferruginea X 9 (p. 246). Red sporangia on short stalks. 

 The long basal threads by which the capillitial mass is attached to the cup are 

 clearly seen. 



Fig. 4. Arcyria insignis var. dispersa X 15 (p. 252). Solitary, pinkish 

 sporangia as distinguished from the typical form where the sporangia are 

 clustered in small groups. 



Fig. 5. Perichaena depressa X 6 (p. 264). Sessile, brownish sporangia. 

 A yellow area of dehiscence makes the development, as a whole, appear yellow 

 when viewed from a distance. 



Plate 15 



Fig. 1. Badhamia rubiginosa X 4 (p. 28). Brownish sporangia on 

 similar colored stalks. 



Fig. 2. Physarum viride X 10 (p. 44). Yellow sporangia on gray stalks. 



Fig. 3. Fuligo intermedia X 1 (p. 80). An ecorticate aethalium, white 

 in color, and showing the well developed layer of outer sporangia in place of a 

 cortex. 



Fig. 4. Leocarpus fragilis X 4 (p. 91). Yellowish brown sporangia on 

 membranous, yellowish stalks. 



Fig. 5. Diachea leucopodia X 4 (p. 109). Blue iridescent sporangia on 

 white stalks. 



Fig. 6. Didymium squamulosum X 4 (p. 127). White sporangia and 

 stalks. 



Fig. 7. Stemonitis axifera X 3 (p. 154). Rusty red sporangia on black 

 stalks. 



Fig. 8. Comatricha typhoides X 4 (p. 164). Pale brown sporangia on 

 black stalks. The sporangia are silvery gray at first due to the presence of a 

 peridium which is soon evanescent. 



