116 



PLAGIOCHILA:— 



Pf 





Fig. 233. Plagiochila aspic nioides; spore (surface and optical section, x 1000); 



LO-patterns. 



PLEUROPHASCUM:— 



O b 



C-^ c 



Fig, 234. Pleurophascuiu (luadrilobiim; main figure: proximal face (surface 

 and optical section; < lOOU); a, proximal face (x 250) of slightly irregular 

 spores; b, transverse side view (x 250); c, longitudinal side view (x 250, 



distal pole upwards). 



POHLIA: see Fig. 199 C, p. 102. 



POLYTRICHUM: 



B 



Fig. 235. A, Polytrichum jiiniperimim (x 1000); a, spore in lateral view 

 (proximal pole upwards); b, proximal face; c, distal face and LO-patterns 

 of the square shown in the centre of the face. B, P. gracile; d, lateral view; 

 e, proximal (tenuitatiferous) face; f, distal face; g, tetrad (x 250; d-f x 1000). 



