Comments
provided by eFloras
Notholaena greggii is rarely collected in the flora area, and all known localities lie within 25 km of the Mexican border in the Big Bend region of Texas. It is most closely related to N . bryopoda Maxon, a gypsophile endemic to the southern Chihuahuan Desert.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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Stem scales strongly bicolored, margins brown, broad and well defined, thin, erose to denticulate. Leaves 4--20 cm. Petiole light brown, equal to or somewhat shorter than blade, grooved or flattened adaxially, bearing scattered glands and a few scales near base. Blade narrowly deltate, 2--3-pinnate, 2--4 times longer than wide, abaxially with conspicuous whitish farina, scales absent, adaxially glandular; basal pinnae slightly larger than adjacent pair, ± equilateral, proximal basiscopic pinnules not greatly enlarged. Ultimate segments sessile or subsessile, narrowly adnate to costae or free; segment margins strongly revolute, often concealing sporangia. Sporangia containing 64 spores. 2 n = 60.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
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Sporulating summer--fall. Calcareous slopes and ledges, usually on limestone or gypsum; 500--1000m.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Pellaea greggii Mettenius ex Kuhn, Linnaea 36: 86. 1869; Cheilanthes greggii (Mettenius ex Kuhn) Mickel; Chrysochosma greggii (Mettenius ex Kuhn) Pichi-Sermolli
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA