Flora of North America species comparison

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Dryopteris celsa

Dryopteris cinnamomea

log fern

cinnamon wood fern
Leaves

monomorphic, dying back in winter, 65–120 × 15–30 cm.

monomorphic, green through winter, 22–50 × 6–12 cm.
Petiole

1/3 length of leaf, scaly at least at base;

scales scattered, dark brown or tan with dark central stripe.

1/4 length of leaf, scaly at least at base;

scales scattered, cinnamon-colored.
Blade

green, ovate-lanceolate, gradually tapering to tip, pinnate-pinnatifid, herbaceous, not glandular.

light green, deltate-ovate, 3-pinnate-pinnatifid, herbaceous, not or sparsely glandular.
Pinnae

± in plane of blade, lanceolate-ovate;

basal pinnae linear-oblong, much reduced, basal pinnules longer than adjacent pinnules, basal basiscopic pinnule and basal acroscopic pinnule equal;

pinnule margins crenately toothed.

in plane of blade, narrowly deltate-lanceolate to deltate-oblong, narrowed to elongate, serrate tip;

basal pinnae deltate-oblong, somewhat reduced, basal pinnules shorter than adjacent pinnules, basal basiscopic pinnule longer than basal acroscopic pinnule;

pinnule margins serrate.
Indusia

lacking glands.

lacking glands.
Sori

midway between midvein and margin of segments.

near sinus.
2n

= 164.

Dryopteris celsa

Dryopteris cinnamomea
Habitat Seepage slopes, hammocks and logs in swamps, mostly on the Piedmont and Coastal Plain Rock outcrops
Elevation 50–800 m (200–2600 ft) 400–2600 m (1300–8500 ft)
Distribution
from FNA
AL; AR; DE; GA; IL; KY; LA; MD; MI; MO; NC; NJ; NY; PA; SC; TN; VA; WV
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; TX; Mexico
[BONAP county map]
Discussion

Dryopteris celsa is a fertile allotetraploid derived from hybridization between D. goldieana and D. ludoviciana. Dryopteris celsa hybridizes with six species; hybrids can usually be identified by the dark-striped scales.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Dryopteris cinnamomea belongs to the D. patula complex of Mexico and Central America, which is poorly understood. Arizona material of D. cinnamomea has been misidentified as D. patula, according to J. T. Mickel and J. M. Beitel (1988).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 2. FNA vol. 2.
Parent taxa Dryopteridaceae > Dryopteris Dryopteridaceae > Dryopteris
Sibling taxa
D. arguta, D. campyloptera, D. carthusiana, D. cinnamomea, D. clintoniana, D. cristata, D. expansa, D. filix-mas, D. fragrans, D. goldieana, D. intermedia, D. ludoviciana, D. marginalis
D. arguta, D. campyloptera, D. carthusiana, D. celsa, D. clintoniana, D. cristata, D. expansa, D. filix-mas, D. fragrans, D. goldieana, D. intermedia, D. ludoviciana, D. marginalis
Synonyms D. goldiana subsp. celsa Tectaria cinnamomea
Name authority (W. Palmer) Knowlton: W. Palmer, & Pollard, Proc. Biol. Soc. Wash. 13: 202. (1900) (Cavanilles) C. Christensen: Amer. Fern J. 1: 95. (1911)
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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