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                                                                The American Triassic Flora and Global Distribution                                              317

 

 

 

 

 

 

 

 

 

 

 

Fig. 542 - Primaraucaria wielandi Bock. Small immature male growth. Upper Triassic, Winterpock, Virginia; spec. 3140, x 3.
Fig. 544-Reconstruction of various seed scale units. d, in Bock, 1954; pl. 6; e, fig. 532; f, fig. 545; a, fig. 522; b, spec. 3166; c, spec. 3168. [Fig. 544a not Primaraucaria]
Fig. 546 - Primaraucaria wielandi Bock. Apophysial epidermal cell structure.
Fig. 547 - Epidermal cell structure of spec. fig. 537.
Fig. 548 - Epidermal cell structure of pericone scale leaves, fig. 531.

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