Polystichum peishanii Li Bing Zhang & H.He

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Polystichum

Characteristics

Plants evergreen. Rhizome erect; scales dark brown, lanceolate. Fronds 36-75 cm; stipe yellowish green, 14-32 cm, 1.5-2 mm in diam. at middle; basal stipe scales brown, dull, broadly lanceolate, ca. 10 × 1.5-1.8 mm, papery, obtusely toothed, acuminate; distal stipe scales similar but narrower and shorter toward apex of stipe and base of rachis, dark brown, dull, varying in size, narrowly lanceolate to subulate, papery, margins shortly and sparsely ciliate, apices caudate or acute. Lamina simply pinnate, adaxially shiny, green when fresh, lanceolate, 22-43 × 4.5-6.5 cm, base slightly contracted, apex caudate; rachis ca. 1.5 mm in diam., without proliferous bulbils; rachis scales dark brown, narrowly lanceolate. Pinnae 18-38 pairs, two basal pairs 1.7-2.3 cm apart, alternate, attached at ca. 80° angle to rachis, oblong-deltoid, 2.4-3.3 × 1.1-1.3 cm, shortly stalked, acroscopic base auriculate, basiscopic base cuneate, margins entire, apices acute; abaxially scaly, adaxially glabrous; microscales present abaxially, subulate, up to 1 cm; frond texture thinly leathery; adaxial midrib concave, abaxially raised; lateral veins free, once dichotomous, ca. 11 pairs from midrib per pinna, prominent abaxially, indistinct adaxially. Sori terminal on veins of upper pinnae, 1-20 per fertile pinna, ca. 1 mm distant from pinna margin; indusia yellowish brown, ca. 1 mm in diam., membranous, repand.
Life form perennial
Growth form herb
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Foliage retention evergreen
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Root system rhizome
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Usage

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Cultivation

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Distribution

Polystichum peishanii world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:77098289-1
WFO ID wfo-0001033068
COL ID 4LN5K
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Polystichum peishanii