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. Sporangium—same—seen from above, × 35.

Fig. 1 c. Cribraria-like net from the top, × 200.

Fig. 2. Vertical section of what is believed the typical European form, × 20.

Fig. 3. An ellipsoidal piriform phase—var. prolatum, × 15.

Physarum compressum Alb. & Schw. form P. affine Rost., [p. 80.]

Fig. 4. A group of sporangia, × 12.

Fig. 4 a. A single spore, × 600.

Fig. 4 b. Capillitium, same species, × 300.

Alwisia bombarda Berk. & Br., [p. 209.]

Fig. 5. Open sporangia, × 6.