KIDSTON : THE FLORA OF THE CARBONIFEROUS PERIOD. 
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Plate XXXVI. 
Fig. 1. Termination of a Calamite belonging to the section 
Calamitina, showing the long narrow foliage. Three - 
fifths natural size. Dolly Lane, Leeds. Middle Coal 
Measures. Collected by Mr. J. W. Bond. 
Fig. 2. Diagrammatic representation of Calamostachys, showing 
barren and fertile whorl. 
Fig. 3. Diagrammatic representation of Palmostachya, showing 
barren and fertile whorl. 
Fig. 4. Calamitina verticillata L. &l H. sp. Oaks Colliery, near 
Barnsley, Yorkshire. Middle Coal Measures [2148]. 
Three-fifths natural size. Collected by Mr. W. 
Hemingway. At the upper end of the specimen is 
seen a verticil of branch scars. The fossil shows 
a ribbed exterior which in this species appears to 
represent the outer surface of the plant. 
