Aspidotis densa

(Brackenridge in Wilkes) Lellinger

Amer. Fern J. 58: 141. 1968.

Common names: Indian's dream aspidote touffue
Endemic
Basionym: Onychium densum Brackenridge in Wilkes, U.S. Expl. Exped. 16: 120, plate 13, fig. 2. 1854, 1855
Synonyms: Cheilanthes siliquosa Maxon Pellaea densa (Brackenridge) Hooker
Treatment appears in FNA Volume 2.

Leaves monomorphic or often somewhat dimorphic, 8–25 cm; fertile leaves more erect than sterile leaves, long-petioled, petioles often 2–5 times longer than blades, fertile blades with more ascending pinnae and narrower segments than sterile blades. Blade 3–4-pinnate, 2–10 cm, somewhat leathery. Ultimate segments linear, 3–8 mm; midrib prominent abaxially. Sori of mature blades continuous along length of segments except at apex; indusia linear, margins with 10–35, shallow, regular teeth or erose. 2n = 60.


Habitat: Slopes, crevices, rocky outcrops, often on serpentine, sometimes in chaparral
Elevation: 300–3400 m

Distribution

V2 244-distribution-map.gif

B.C., Que., Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Aspidotis densa"
Alan R. Smith +
(Brackenridge in Wilkes) Lellinger +
narrowed +
Onychium densum +
pentagonal +, deltate +  and ovate-triangular +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
thick;thin +
Indian's dream +  and aspidote touffue +
B.C. +, Que. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
300–3400 m +
yellow +  and white +
obcordate;reniform +
Slopes, crevices, rocky outcrops, often on serpentine, sometimes in chaparral +
monomorphic +
recurved +  and reflexed +
noncircinate +  and circinate +
8 cm80 mm <br />0.08 m <br /> (25 cm250 mm <br />0.25 m <br />) +
lighter color +
lanceolate +
dark reddish-brown +
Amer. Fern J. +
persistent +
costule-bearing +
discrete +
1 +, 32 +  and 64 +
tetrahedral-globose +
not darkened +  and greenish +
Cheilanthes siliquosa +  and Pellaea densa +
Aspidotis densa +
Aspidotis +
species +
shallow +
10 +  and 35 +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 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 +