240 
Schwartz. — The P lasmodiophoraceae. 
Fig. 8. Akaryote stage and spores of L Bellidis. x 800. 
Fig. 9. Apex of root-hair of Poa annua infected by L . Graminis. x 800. 
Fig. 10. Empty spores of L. Graminis in apex of root- hair of Poa annua. X 800. 
Fig. 11. Swarm-cells, myxamoebae, and spore of Fuligo septica. x 800. 
Fig. 12. Karyokinesis of nuclei in sporangium of Lycogala miniatuni. x 800. 
Fig. 13. Anaphase of mitoses in sporangium of Lycogala miniatum. x 800. 
Fig. 14. Central plasmodial portion of sporangium of Arcyria ferruginea. x 800. 
Fig. 15. Middle belt of sporangium of A. ferruginea, showing transition to reproductive nuclei 
and spores, x 800. 
Fig. 16. Portion of sporangium of A . ferruginea, showing karyokinesis of reproductive nuclei 
prior to spore formation. X 800. 
Fig. 17. Section of sporangium of A. ferruginea, showing central plasmodial portion and outer 
sporogenous portion, x 500. 
Fig. 18. Spores of Comatricha obtusata, showing nuclear division, x 800. 
Fig. 19. Portion of sporangium of Arcyria albida, showing enlarged nuclei, x 800. 
Fig. 20. Karyokinesis and synapsis in sporangium of Arcyria ferruginea. x 1,200. 
Fig. 21. Developing sporangium of Olpidium in root of M. Pulegium. x 800. 
Fig. 22. Ripe sporangium of Olpidium. x 800. 
