Northeastern Asian Flora
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Lindsaea orbiculata (Lam.) Mett. ex Kuhn   (redirected from: Lindsaea polymorpha Wall.)
Family: Dennstaedtiaceae
[Adiantum orbiculatum Lam., moreLindsaea commixta Tagawa, Lindsaea flabellulata Dryand., Lindsaea orbiculata var. commixta (Tagawa) K.U.Kramer, Lindsaea orbiculata var. recedens (Ching) W.C.Shieh, Lindsaea polymorpha Wall., Lindsaea recedens Ching, Lindsaea taiwanensis Ching, Schizoloma orbiculatum (Lam.) Kuhn]
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  • Japan Flora
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Japan Flora: Fronds glabrous,evergreen; rhizomes short, creeping or as­cending, firm,densely leafy, while young with red-brown lus­trous linear-lanceolate scales about 1.5 mm. long; stipes 2-20 cm. long, dark purple-brown, lustrous, 4-angled, smooth, sparsely scaly at the base; blades broadly lanceolate^ simply pinnate, 8-20 cm. 1ong3 2-3 cm. wide, or bipinnate and nar­rowly triangular, 5-12 cm. wide, gradually acuminate in larger fronds, the rachis 4-angled, lustrous, pale green or often purple-brown beneath on lower half; pinnules chartaceous- herbaceous, elliptic, squarrose or ovate, 8-20(-25) mm. long, 4-10(-13) mm. wide, oblique, rounded to very obtuse, broadly cuneate at base, short-petiolulate, entire and nearly at right angles to the axis on the lower margin, acutely toothed and/or lobulate toward the tip, palmately veined; sori usually inter­rupted, short; indusia narrow, marginal. 

Honshu (Izu Pen. and Izu Isis, through Tokaido to s. Kinki Distr.)  Shikoku, Kyushu; rather rare. Ryukyus, Formosa, China, and Indo­china. Polymorphic.

var. deltoidea Wu. Terminal pinnaelongate-rhombic, lobulate, large. Honshu (Kii Prov.), Kyushu. Ryukyus, Formosa, and China.

Lindsaea orbiculata
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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