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Aspidotis carlotta-halliae (Wagner & E.F.Gilbert) Lellinger  

No occurrences found

Family: Pteridaceae
tufted lacefern
[Cheilanthes carlotta-halliae Wagner & E.F.Gilb.]
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Alan R. Smith in Flora of North America (vol. 2)
Leaves monomorphic or weakly subdimorphic, 10--30 cm. Blade 4-pinnate, 3--12 cm, nearly as wide as long, thin to thick. Ultimate segments narrowly lanceolate to deltate, 2--6 mm; midrib obscure or evident abaxially. Sori of mature blades ± discrete to usually subcontinuous, 3--7(--9) per segment; indusia semicircular to usually elongate and connecting several adjacent sori, margins with 6--10 irregular and prominent teeth and/or lobes. 2 n = 120. Generally on serpentine slopes, in crevices, and on rock outcrops; 100--1400 m; Calif. Aspidotis carlotta-halliae is a fertile allotetraploid species derived from hybridization between A . californica and A . densa . Occasional sterile backcrosses are found.

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