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Hardy Fern Home

D. lacera resources
Flora
Flora of JapanFlora of Japan
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frond, crosiersfrond, crosiers
frondsfronds
habit, frond, fertile portionhabit, frond, fertile portion
in habitat, stipe and rachis scalesin habitat, stipe and rachis scales
mature and senescent stages of the frond, sorimature and senescent stages of the frond, sori
ratty frond, withered fertile pinnae, compared to D. uniformisratty frond, withered fertile pinnae, compared to D. uniformis
inoperativetop of fertile frond (link inoperative)
upper and lower surfaces of fertile frondupper and lower surfaces of fertile frond

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Dryopteridaceae
�� Dryopteris
���� aemula affinis
���� amurensis arguta
���� bissetiana campyloptera
���� carthusiana caucasica
���� celsa championii
���� clintoniana crassirhizoma
���� cristata cycadina
���� cystolepidota decipiens
���� dilatata erythrosora
���� expansa filix-mas
���� formosana fragrans
���� fuscipes goldiana
���� hondoensis intermedia
���� kuratae lacera
���� lepidopoda ludoviciana
���� marginalis mindshelkensis
���� oreades pacifica
���� polylepis pseudo-filix-mas
���� purpurella remota
���� sacrosancta saxifraga
���� sieboldii stewartii
���� sublacera tokyoensis
���� uniformis varia
���� wallichiana

�Other Genera
��� Adiantum Arachniodes
��� Aspidotis Asplenium
��� Astrolepis Athyrium
��� Blechnum Cheilanthes
��� Cryptogramma Cyrtomium
��� Cystopteris Dennstaedtia
��� Deparia Diplazium
��� Gymnocarpium Lygodium
��� Matteuccia Onoclea
��� Oreopteris Osmunda
��� Pellaea Phegopteris
��� Pleopeltis Polypodium
��� Polystichum Pteridium
��� Pteris Pyrrosia
��� Thelypteris Woodsia
��� Woodwardia
Dryopteris lacera (Thunb.) Kunze
Etymology Latin: lacera, torn into fringelike segments
Description Rhizome: erect, massive, bearing several fronds in a tuft, scaly.
Frond: 60 cm high by 20 cm wide, evergreen, somewhat dimorphic, fertile fronds with more and constricted pinnae at the , blade/stipe ratio: 3:1.
Stipe: grooved, densely scaly throughout, brown to reddish brown, oblong-ovate to linear-lanceolate, larger ones to 2 cm long, membranous, vascular bundles: 3-7 in a C-shaped pattern.
Blade: pinnate-pinnatifid to nearly 2-pinnate, oblong to ovate-oblong, herbaceous to somewhat leathery, linear to ovate scales below, absent above.
Pinnae: 10 to 20 pair, lower sterile pinnae oblong-lanceolate, shortly stalked; fertile pinnae confined to upper portion, gradually smaller upwardly, covered entirely by sori, withering after maturation,; veins immersed on upper surfaces, distinct.
Sori: round, entirely covering the fertile pinnae, indusium: reniform, sporangia: brownish.
Culture Habitat: floor of mountain forests, at edge of lowland forests. Distribution: Japan, China, Korea. Hardy to -25�C, USDA Zone 5.
Synonyms
Polypodium lacerum Thunb.
Aspidium filix-mas var. lacerum Chr.
Aspidium lacerum (Thunb.) Sw.
Lastrea lacera (Thunb.) D.C. Eaton
Nephrodium lacerum (Thunb.) Baker
Polypodium lacerum Thunb.
Polystichum lacerum Presl
Dryopteris lacera
Dryopteris lacera. �Illustration from The Cultivated Species of the Fern Genus Dryopteris in the United States, Barbara Joe Hoshizaki and Kenneth A. Wilson, American Fern Journal, 89, 1, (1999), with permission.
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