PLATE 1. — Mazocarpon oedipternum forma megalophorum 



Fig. 1. Part of a nearly radial section of cone: Prom C. B. 136 (20). 



2. Part of a nearly radial section of cone including median section of 

 normal sporophyll (N Sp). Prom C. B. 136 (20). 



3. Tangential section of cone suggesting a low spiral arrangement of 

 sporophylls: Prom C. B. 136 (9). 



4. Tangential section of cone transecting sporangia toward the distal 

 end and showing lateral keels of sporangia (SpK) inclined down- 

 ward: Prom C. B. 136 (3). 



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