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DRYOPTERIDACEAE WOOD FERN FAMILY

Alan R. Smith

Perennial, in soil or rock crevices; rhizome generally short-creeping, suberect, or erect, scales large, generally tan to brown, generally uniformly colored.
Leaf: generally tufted, 5–200+ cm, generally ± alike; stipe generally firm, base generally darker, with many vascular strands; blade 1–4- pinnate, often with scales, hair-like scales, hairs (except clear, needle-like hairs generally 0), or short-stalked glands on axes, between veins or not, veins free to netted; rachis, costa generally grooved adaxially.
Sporangia: sori round, along veins; indusia peltate or round- reniform; spores elliptic, winged, ridged, or spiny, scar linear.
± 40–45 genera, > 1600 species: worldwide, especially tropics, wooded areas. [Schuettpelz & Pryer 2007 Taxon 56:1037–1050; Smith et al. 2006 Taxon 55:705–731] Based on molecular sequence data, Athyrium, Cystopteris, Woodsia removed to Woodsiaceae to preserve a monophyletic Dryopteridaceae. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Smith, A.R. et al. 2006. A classification for extant ferns. Taxon 55:705–731; Schuettpelz, E. and K.M. Pryer 2007. Fern phylogeny inferred from 400 leptosporangiate species and three plastid genes. Taxon 56: 1037–1050.]
Unabridged note: Current data (as reported by Schuettpelz & Pryer and in papers cited therein) suggest that Wooodsiaceae is paraphyletic (with respect to Aspeniaceae, Blechnaceae, and Thelypteridaceae), yet are insufficient to resolve the questions of circumscription (too few taxa, not enough genes sampled). Alternative classifications that would preserve monophyly include recognition of several additional, small families (e.g., Cystopteridaceae, Athyriaceae, and others not in CA, each comprising just a few genera) or lumping at least 4 currently recognized families, many of long-standing use and acceptance; a conservative and expedient course is taken for now (Smith et al. 2006), pending further work.

Key to Dryopteridaceae

DRYOPTERIS WOOD FERN
Rhizome short-creeping or ascending to suberect, stout.
Leaf: stipe > 1.5 mm wide, firm, more densely scaly than midrib, base ×-section with many round vascular strands in an arc; blade >= 1–3- pinnate, proximal pinnae reduced or not, veins free, simple or forked; segments deeply pinnately lobed or not.
Sporangia: sori round; indusium round- reniform, ± centrally attached at a sinus, generally persistent.
± 100 species: ± worldwide, especially eastern Asia. (Greek: oak, fern) Hybrids unknown in CA, frequent in eastern North America.
Unabridged references: [Montgomery & Paulton 1981 Fiddlehead Forum 8:25–31]

Key to Dryopteris

D. arguta (Kaulf.) Maxon
NATIVE

Leaf: 30–60(100+) cm, 12–18(30) cm wide; stipe, midrib minutely glandular; blade lanceolate, 1–2- pinnate, proximal pinnae <= others, longest generally near blade base, sides ± equal, basiscopic pinnules 1–1.3 × acroscopic on same pinna, segments deeply pinnately lobed or not, teeth with bristle-like tips or not, veins into teeth; scales of pinna midribs lance- ovate to ± lanceolate.
2n=82. Locally common. Open, wooded slopes, caves; < 2500 m. Northwestern California, Sierra Nevada, Sacramento Valley (Sutter Buttes), Central Western California, Southwestern California, Modoc Plateau (caves in Lava Beds National Monument); to British Columbia, Arizona. [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].

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Bioregions in which taxon occursRed area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon;
markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may have georeferencing or identification issues.
map of distribution 1

Chart based on elevation range in Manual and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes Manual flowering time.