Flora of North America species comparison

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Tectaria coriandrifolia

hairy halberd fern, hattie bauer's halberd fern
Stems

decumbent, compact.
Petiole

tan to reddish brown, often shorter than to rarely equaling blade, pubescent on both surfaces, scaly;

scales narrowly deltate or lanceolate, 2–5 × 0.1–0.2 mm.
Blade

lanceolate to oblong, 1-pinnate-pinnatifid, 5–12 × 2.5–10 cm.
Pinnae

1–8 pairs, margins crenate to pinnatifid, 1.2–5 cm, base rounded, often with proliferous buds in axils.
Indusia

round-reniform, attached at sinus.
Rachis

and costae pubescent abaxially.
Areoles

lacking included veinlets.
2n

= 80 (Jamaica).

Tectaria coriandrifolia
Habitat Sinkholes, rock, ledges, crevices
Elevation 0 m (0 ft)
Distribution
from FNA
FL; West Indies in Cuba; Jamaica
[BONAP county map]
Discussion

Tectaria coriandrifolia is known in North America only from southernmost Florida; it has not been seen there for several years and is perhaps extirpated. It hybridizes with Tectaria fimbriata to form T. × amesiana A. A. Eaton [Aspidium trifoliatum (Linnaeus) Swartz var. amesianum (A. A. Eaton) Clute], which may be distinguished by its misshapen spores, fewer pinnae pairs, and dense row of hairs on the adaxial surface of the petioles. The hybrid is known only from Florida.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 2.
Parent taxa Dryopteridaceae > Tectaria
Sibling taxa
T. fimbriata, T. heracleifolia, T. incisa
Synonyms Aspidium coriandrifolium
Name authority (Swartz) L. Underwood: Bull. Torrey Bot. Club 33: 200. (1906)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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