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FNA | Family List | FNA Vol. 2 | Pteridaceae | Pellaea

6a. Pellaea ternifolia subsp. villosa Windham, Contr. Univ. Michigan Herb. 19: 43. 1993.

Petiole rounded or slightly flattened adaxially in distal portion; rachis villous, especially in axils of pinnae; pinnae with hairs scattered along main veins abaxially; largest ultimate segments (excluding terminal pinnae) usually more than 18 mm; spores averaging 46--53 ┬Ám diam. 2 n = 116.

Sporulating summer--fall. Rocky slopes and ledges, on igneous substrates; 2300--2700 m; Tex.; Mexico.

The only record of Pellaea ternifolia subsp. villosa from the flora is provided by a single plant collected in the Davis Mountains of western Texas.


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