Anemia adiantifolia

(Linnaeus) Swartz
Syn. Fil. 157. 1806.
Common names: Pine fern
Illustrated
Basionym: 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"
John T. Mickel +
(Linnaeus) Swartz +
Osmunda adiantifolia +
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 +
Illustrated +
Anemia adiantifolia +
species +