Anemia adiantifolia

(Linnaeus) Swartz

Syn. Fil. 157. 1806.

Common names: Pine fern
Illustrated
Basionyms: Osmunda adiantifolia Linnaeus Sp. Pl. 2: 1065. 1753
Treatment appears in FNA Volume 2.

Stems ca. 2 mm diam. Leaves partially dimorphic (sporangia limited to proximal pair of pinnae), 17–85 × 7–35 cm, sterile leaves (excluding erect fertile pinnae) 17–60 cm. Petiole straw-colored to chestnut-brown, 1/2–2/3 length of leaf, 1–1.4 mm wide, hirsute to glabrous. Blade deltate, 3-pinnate, leathery. Pinnae 10–18 pairs, alternate to subopposite, segments oblanceolate, base cuneate, margins minutely denticulate, apex obtuse, pilose with stiff white hairs. Fertile pinnae usually taller than sterile blades. Spores with ridges ± parallel, distant. 2n = 76, 114, 152.


Habitat: Terrestrial on open to lightly shaded, rocky slopes and in hammocks and pine woods, often on limestone
Elevation: 0–30 m

Distribution

V2 435-distribution-map.gif

Fla., Mexico, West Indies in the Antilles, Trinidad, Central America, South America to Ecuador and Brazil

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Anemia adiantifolia"
152 +, 114 +  and 76 +
John T. Mickel +
(Linnaeus) Swartz +
cuneate +
Osmunda adiantifolia +
deltate +
Pine fern +
Fla. +, Mexico +, West Indies in the Antilles +, Trinidad +, Central America +  and South America to Ecuador and Brazil +
0–30 m +
Terrestrial on open to lightly shaded, rocky slopes and in hammocks and pine woods, often on limestone +
17cm;85cm +
17 cm170 mm <br />0.17 m <br /> (60 cm600 mm <br />0.6 m <br />) +
7 cm70 mm <br />0.07 m <br /> (35 cm350 mm <br />0.35 m <br />) +
unequal +
denticulate +
straw-colored +  and chestnut-brown +
1/2 length of leaf;2/3 length of leaf +
hirsute +  and glabrous +
1mm +  and 1.4mm +
usually taller +
arising +  and erect +
anastomosing +
Illustrated +
tetrahedral-globose +
dictyostelic +  and solenostelic +
2 cm20 mm <br />0.02 m <br /> (?) +
Anemia adiantifolia +
species +
on rock +  and terrestrial +