Aspidotis carlotta-halliae

(W. H. Wagner & E. F. Gilbert) Lellinger

Amer. Fern J. 58: 141. 1968.

Endemic
Basionym: Cheilanthes carlotta-halliae W. H. Wagner & E. F. Gilbert Amer. J. Bot. 44: 738, figs. 1b, 2b, 2e. 1957
Treatment appears in FNA Volume 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. 2n = 120.

Discussion

Aspidotis carlotta-halliae is a fertile allotetraploid species derived from hybridization between A. californica and A. densa. Occasional sterile backcrosses are found.

Generally on serpentine slopes, in crevices, and on rock outcrops

Selected References

None.

Lower Taxa

None.
Alan R. Smith +
(W. H. Wagner & E. F. Gilbert) Lellinger +
narrowed +
Cheilanthes carlotta-halliae +
pentagonal +, deltate +  and ovate-triangular +
3 cm30 mm <br />0.03 m <br /> (12 cm120 mm <br />0.12 m <br />) +
thin;thick +
100–1400 m +  and Calif. +
yellow +  and white +
obcordate;reniform +
semicircular +  and usually elongate +
monomorphic +
recurved +  and reflexed +
noncircinate +  and circinate +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
subdimorphic +
lighter color +
lanceolate +
evident +  and obscure +
dark reddish-brown +
Amer. Fern J. +
persistent +
costule-bearing +
adjacent +  and subcontinuous +
discrete +
1 +, 32 +  and 64 +
tetrahedral-globose +
not darkened +  and greenish +
Aspidotis carlotta-halliae +
Aspidotis +
species +
6 +  and 10 +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.13 cm1.3 mm <br />0.0013 m <br /> (?) +
crescent--shaped +  and roundish +
on rock +  and terrestrial +