Fig. 1. Three sporangia, one closed, × 8.

Fig. 1 b. A single spore, × 1400.

Hemitrichia vesparium (Batsch) Macbr., [p. 262.]

Fig. 2. Tip of the elater of capillitial thread, × 1400.

Fig. 2 a. A single spore, × 1400.

Trichia iowensis Macbr., [p. 269.]

Fig. 3. A cluster of sporangia, × 5.

Fig. 3 a. Tip of a branching elater, × 750.

Fig. 3 b. A single spore, × 750.

See also [Plate X]., Fig. 5.