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. 1 b. A single spore, × 1200.

Physarum notabile Macbr., [p. 80.]

Fig. 2. A group of sporangia, stipitate form, × 10.

Fig. 2 a. A single spore, × 1200.

Physarum flavicomum Berk., [p. 93.]

Fig. 3. A cluster of sporangia, one closed, × 10.

Fig. 3 a. A single spore, × 1200.

Physarum tropicale Macbr., [p. 82.]

Fig. 4. Sporangia, × 10.

Fig. 4 a. Capillitium, × 800.