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1. Odontosoria Fée, Mém. Foug. 5: 325. 1852.
乌蕨属 wu jue shu
Authors: Shiyong Dong, Sujuan Lin & Julie Barcelona
Lindsayopsis Kuhn.
Plants terrestrial. Rhizomes shortly creeping, protostelic or solenostelic, covered with dark brown hairs or subulate scales. Fronds approximate; stipe stramineous or dark stramineous, shallowly sulcate adaxially, glabrous; lamina 3- or 4-pinnate, pinnatifid and gradually narrowed toward apex; ultimate pinnules or segments usually cuneate or linear; veins free, simple or once or twice forked on ultimate pinnules, papery to slightly leathery. Sori usually submarginal, ovate, terminal on a single vein, or on 2 or 3 veins; annulus consisting of 12-24 thickened cells; indusia ovate or cup-shaped, basally and partially or entirely adnate laterally. Spores ellipsoid and monolete, or globose and trilete.
About 20 species: pantropical, extending north to Korea; two species in China.
Many of the Oriental non-scandent species of Odontosoria were previously placed in Sphenomeris Maxon, nom. cons. (Stenoloma Fée), which is a genus now restricted to a single Caribbean species that forms an independent lineage (Lehtonen et al., Bot. J. Linn. Soc. 163: 305-359. 2010). The position of Odontosoria tsoongii Ching (Bull. Fan Mem. Inst. Biol. 1: 149. 1930) is uncertain. It was treated as a synonym of Stenoloma biflorum (Kaulfuss) Ching (=O. biflora) in FRPS (2: 277. 1959).
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Rhizome scales 1 or 2 cells wide at base; lamina ovate to lanceolate, papery; pinnae patent to slightly ascending; veins slightly raised adaxially or on both surfaces, rarely immersed, slightly darker than laminar surface; indusia entire or repand, coterminous with or rarely shorter than adaxial lamina, entirely adnate laterally. |
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1 O. chinensis |
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Rhizome scales 3-6 cells wide at base; lamina triangular-ovate, thickly papery to leathery; pinnae slightly to distinctly ascending; veins slightly raised abaxially; indusia denticulate to erose, rarely repand, distinctly shorter than or rarely coterminous with adaxial lamina, partially adnate laterally. |
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2 O. biflora |
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Lower Taxa
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