550 - ROBERT KIDSTON ON FOSSIL PLANTS. 
Fig. la. Sphenopteris decomposita, Kidston. Small portion pies to show the venation. 
Fig. 2. Chondrites plumosa, Kidston. 
Fig. 3. Eremopteris Macconochit, Kidston. 
Fig. 3a. " . Enlarged pinnule, showing venation. — 
Fig. 4. Sphenopteris decomposita, Kidston. Lower extremity of a frond, showing decrease in 
the size of the pinne, and increase in the size of the pinnules. 
Fig. 5. Sphenopteris decomposita, Kidston. Lower extremity of a frond, showing decrease in 
the size of the pinnee, and increase in the size of the pinnules. 
. 6. Cardiocarpus, sp. 
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