Olive. — Acrasieae. 
PLATE 5. 
Sappinia pedata Dangeard. 
Fig. 1. An aggregation of amoebae at the end of a straw, together with three 
isolated encysted amoebae. X 150. 
Fig. 2. An encysted stalked individual. X 050. 
Fig. 3-4. Rejuvenation of a stalked encysted individual. X 950. 
Fig. 5. An encysted individual from a nutrient agar surface. X 1,230. 
Fig. 6. An amoeba showing a lobose pseudopodium. X 950. 
Fig. 7. An encysted individual (“kystes pedicelles ”), after Dangeard. 
Guttulinopsis vulgaris Olive. 
Fig. 8. A stalked sorus. X 150. 
Fig. 9. A group of sessile sori. X 150.* 
Fig. 10-15. Rejuvenation of a pseudospore. X 3,500. 
Fig. 16. A pseudospore showing peculiar lens shaped vacuolations and another 
that is disc shaped. X 2,330. 
Fig. 17. Three myxamoebae killed and stained. X 2,150. 
Fig. 18. Two dividing myxamoebae killed and stained. X 2,150. 
Fig. 19. A young pseudoplasmodium. X 1,400. 
Guttulinopsis clavata Olive. 
Fig. 20. A sorus. X 230. 
Fig. 21. A sorus, with the head of pseudospores deliquesced and showing the 
column of stalk cells enclosed in mucus, together with the columella- 
. like portion persisting at its apex. X 230. 
Fig. 22. Pseudospores. X 950. 
Guttulina sessilis (?) van Tieghem. 
Fig. 23. A sorus. X 150. 
Fig. 24. Oval pseudospores (?). X 950. 
Guttulinopsis stipitata Olive. 
Fig. 25. A sorus. X 150. 
Fig. 26. Pseudospores. X 950. 
Guttulina protea Fayod. 
(Fig. 27-39 after Fayod.) 
Fig. 27-28. Sori. 
Fig. 29-34. Germination of the spore. 
Fig. 35. A myxamoeba showing the Amoeba Umax form. 
Fig. 36-39. Formation of a microcyst. 
