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4a. Notholaena grayi subsp. grayi Davenport
Most sporangia containing 16 spores; spores generally more than 55 µm. n = 2 n = 90, apogamous.
Sporulating summer--fall. Rocky slopes and cliffs, on a variety of substrates including both granite and limestone; 300--1900 m; Ariz., N.Mex., Tex.; n Mexico.
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