106 



DENDROCEROS: 



^,^r/Vy^/V, 



Fig. 208. Dendroceros crispatiis; part of spore surface (x 1000). 



DIPHYSCIUM: see Fig. 200 C, p. 102. 



DUMORTIERA:— 



m7 



Kl, 



Fig. 209. Diimortiera hirsiita; exine stratification (x 2000) and LO-patterns, 

 B, D. vehitina; spore in polar view (x 1000), exine stratification (x 2000), 



and LO-patterns. 



