The North American Slime-Moulds / A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species

by Thomas H. Macbride

Fig. 4 a. A single spore, × 1000.

Comatricha laxa Rost., [p. 177.]

Fig. 5. A sporangium seen as if in section, × 40.

Fig. 5 a. A single spore, × 2000.

Diachaea thomasii Rex, [p. 188.]

Fig. 6. Three sporangia magnified about 15 times.

Fig. 6 a. A single spore of the same species, × 800.

Brefeldia maxima (Fries) Rost., [p. 154.]

Fig. 7. A group of sporangia, showing columellæ; × 5.

Fig. 7 a. Capillitial threads of the same species, × 300.