Notholaena aliena

Maxon

Contr. U.S. Natl. Herb. 17: 605. 1916.

Synonyms: Chrysochosma aliena (Maxon) Pichi-Sermolli
Treatment appears in FNA Volume 2.

Stem scales concolored to weakly bicolored, margins usually brown, very narrow and poorly defined, thin, ciliate-denticulate. Leaves 5–15 cm. Petiole brown, equal to or shorter than blade, rounded adaxially, glandular-farinose, bearing scattered hairs and scales. Blade linear-lanceolate, 2-pinnate-pinnatifid, 3–6 times longer than wide, abaxially with conspicuous cream-colored or pale-yellow farina and dull, light-brown, narrowly lanceolate, ciliate scales scattered along rachises and costae, adaxially sparsely glandular and villous with long, multicelled, whitish hairs; basal pinnae equal to or slightly larger than adjacent pair, ± equilateral, proximal basiscopic pinnules not greatly enlarged. Ultimate segments sessile, broadly adnate to costae; segment margins slightly recurved, rarely concealing sporangia. Sporangia containing 16 spores.


Phenology: Sporulating summer–fall.
Habitat: Rocky slopes and cliffs, usually on volcanic substrates
Elevation: 700–1200 m

Discussion

Notholaena aliena is a rare species closely related to N. grayi. Preliminary studies indicate that N. aliena reproduces by apogamy and is probably triploid.

Selected References

None.

Lower Taxa

None.
... more about "Notholaena aliena"
Michael D. Windham +
slightly larger +
rounded +  and truncate or cuneate +
light-brown +
lanceolate +, 2-pinnate-pinnatifid +  and linear-lanceolate +
Tex. +  and Mexico +
700–1200 m +
pale-yellow +, cream-colored +  and conspicuous +
glandular-farinose +
obcordate;reniform +
Rocky slopes and cliffs, usually on volcanic substrates +
multicelled +
monomorphic +
recurved +  and reflexed +
noncircinate +  and circinate +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
ciliate-denticulate +
glandular-farinose +
Sporulating summer–fall. +
enlarged +
Contr. U.S. Natl. Herb. +
bicolored;black +
persistent +
linear-subulate +  and lanceolate +
black +  and dark-brown +
tetrahedral-globose +  and globose +
granulate +
dark-colored +
ascending +  and horizontal +
concolored +  and weakly bicolored +
Chrysochosma aliena +
Notholaena aliena +
Notholaena +
species +
0 cm0 mm <br />0 m <br /> (?) +  and 0.4 cm4 mm <br />0.004 m <br /> (?) +
1 +  and several +
crescent--shaped +  and roundish +