40 



PSEUDOTSUGA:— 



Megaspore membrane: Pseadotsmja kixifolia (Fig. 63 d). 

 Pollen grains: Psciidotsuga taxifolin (¥\%. 63 a-c). 



Fig. 63. Pseudotsiiga taxifolia; a, distal pole (with tenuitas); b, proximal pole; 

 c, part of the microspore exine (optical cross-section, x 2000); d, part of 

 megaspore exine (optical cross-section, x 1000). The upper left-hand detail- 

 figm-e shows the exine of an opened pollen grain ( x 250), the upper right- 

 hand detail-ligure a young pollen grain with markings similar to a "tetrad 



scar". 



SAXEGOTHAEA:— 



Fig. 64. Saxegothaea conspicua; lateral view, surface and optical cross-section 



(x 1000). 



