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1a. Astrolepis cochisensis subsp. chihuahuensis D. M. Benham, Amer. Fern J.  82: 59.  1992.   
 
 
 
 
Sporangia  containing 64 spores; spores averaging 39--46 µm diam. 2 n  = 58. 
 
 
 
Sporulating summer--fall. Rocky calcareous slopes and cliffs; mostly on limestone; 1200--2600 m; N.Mex., Tex.; ne Mexico. 
 
 
 
 
 
                         
                             
	 
                      
                         
		
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