Fig. 14. Group of sporangia, × 2.
Fig. 14 a. The same enlarged to show general outline.
Fig. 14 b. The same; capillitial section, × 20.
Fig. 14 c. A single spore, × 1000.
EXPLANATION OF PLATE XVII
Cribraria argillacea (Pers.) Schrad., [p. 218.]
Fig. 1. Sporangium, highly magnified.
Cribraria macrocarpa Schrad., [p. 219.]