44 



y ly 



'■"-• 



>i .J. A 



A. .A. 



m 



.i^-6iAss4j?i 



if 



k... 





'^^ 



f ^ 



./} 



4 



-X 



Fig. 73. a-f, Tsiiga forrestii; a, distal face (outline; x 250); b, proximal face 

 (outline of an aberrant grain; x 250); c-e, LO-patterns [c: four spinules (L); 

 d: the same spinules (O) and upper parts of the undulating tegillum (L); 

 e: the fleck near the centre (L) is a small infrategillar hollow, also vaguely 

 shown in d (O)]; f, tegillum. — Left column (g, i, k, m, n): outhne of exine 

 stratification, proximal face ( >' 2000); g, T. diversifoHa; i, T. sieholdii; 

 k, T. diimosa; m, T. chinensis; n, T. pattoniann. — Right column (h, j, 1, f, o): 

 tegillum of the pulfy frill (x 2000); h, T. diversi folia; j, T. sieboldii; 1, T. 

 yiinnanensis; f, T. forrestii; o, T. chinensis. 



WELWITSCHIA: see Fig. 30 C, p. 19. 



WIDDRINGTONIA: see Fig. 42 C, p. 26. 



