Tectaria
Tectaria coriandrifolia
halberd fern
hairy halberd fern, hattie bauer's halberd fern
short-creeping to erect, stolons absent.
decumbent, compact.
monomorphic, evergreen.
3/4–3 times length of blade, base not swollen;
vascular bundles more than 3, arranged in an arc, ± round in cross section.
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.
lanceolate to deltate or pentagonal, entire to 1-pinnate-pinnatifid [3-pinnate-pinnatifid], reduced distally to shallowly lobed or hastate apex, herbaceous to papery.
lanceolate to oblong, 1-pinnate-pinnatifid, 5–12 × 2.5–10 cm.
not articulate to rachis, segment margins entire to sinuate or shallowly lobed;
proximal pinnae not or only slightly reduced, sessile to short-petiolulate, base equilateral or often inequilateral with prominent basiscopic lobe(s);
costae adaxially rounded or shallowly grooved, grooves not continuous from rachis to costae;
indument lacking or of multicellular hairs on costae abaxially, of multicellular hairs on costae adaxially.
1–8 pairs, margins crenate to pinnatifid, 1.2–5 cm, base rounded, often with proliferous buds in axils.
reticulate, areoles with or without included veinlets.
round-reniform, attached at sinus.
in 1–several rows between midrib and margin, round;
indusia peltate to round-reniform and with narrow sinus, persistent or caducous.
brownish, with inflated folds or wings.
and costae pubescent abaxially.
lacking included veinlets.
= 40.
= 80 (Jamaica).
Tectaria
Tectaria coriandrifolia
Species ca. 200 (4 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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.)
1. Blades 15-50 cm; areoles with included veinlets. | → 2 |
1. Blades 5-15 cm; areoles rarely with included veinlets. | → 3 |
2. Indusia peltate, attached centrally; pinnae cordate at base; rachises and costae glabrous abaxially. | T. heracleifolia |
2. Indusia round-reniform, attached at sinus; pinnae oblique at base; rachises and costae puberulent abaxially. | T. incisa |
3. Pinnae 1-8 pairs, often with proliferous buds in axils; petiole shorter than or rarely equaling blade, pubescent on both surfaces; indusia round-reniform, attached at sinus. | T. coriandrifolia |
3. Pinnae absent or 1(-2) pair, without proliferous buds in axils; petiole 1-3 times length of blade, pubescent adaxially, lacking hairs abaxially; indusia peltate, attached centrally. | T. fimbriata |
WildflowerSearch
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USDA Plants Database
