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    台灣植物誌 第二版  Flora of Taiwan, 2nd edition    Vol. 1

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    台灣植物誌第二版  Flora of Taiwan, 2nd edition  1: 266

     23. BLECHNACEAE 烏毛蕨科
    CHIOU, WEN-LIANG, SHIEH, WANG-CHUENG and DEVOL, CHARLES E.

    Caudex erect, sometimes a small tree-like trunk, or rhizome creeping or scandent. Fronds monomorphic or dimorphic, usually pinnate or pinnatifid, rarely simple or bipinnate; stipes scaly at base, not articulate to rhizome; venation usually free, or with a costal row of areolae. Sori costal, discrete or in a coenosori; usually with an indusium opening towards costa, rarely exindusiate. Spore bilaterale. Adult gametophytes cordate.
    Nine or ten genera, five in Taiwan.

    KEY TO GENERA
    1. Tree ferns with trunk like stem, about 1 m tall; fronds in terminal crown.
    2. Trunk 2-3 cm in diameter; fronds bipinnate or deeply bipinnatifid; sori indusiate… 3. Diploblechnum
    2. Trunk about 10 cm in diameter; fronds pinnate; sori exindusiate… 2. Brainea
    1. Rhizome creeping to suberect, not tree-like ferns.
    3. Sori continuous (coenosori).
    4. Fronds monomorphic… 1. Blechnum
    4. Fronds dimorphic… 4. Struthiopteris
    3. Sori discrete… 5. Woodwardia

    1. BLECHNUM L. 烏毛蕨屬

    Rhizome creeping or erect and stout, occasionally scandent, dictyostelic; scales abundant, linear, narrow, dark brown to black, shining. Fronds monomorphic; pinnate or pinnatifid; venation of sterile fronds free. Sori linear, costal, coenosori; sporangia borne along both sides of costa; indusia firm, opening towards costa.
    About 40 species, two in Taiwan.

    KEY TO THE SPECIES
    1. Fronds 30-60 cm tall, apex pinnatifid; rhizome creeping, stipes distant… 1. B.melanopus
    1. Fronds 1-2 m tall, apex with distinct terminal segment; rhizome short, stipes tufted… 2. B. orientale

    1. Blechnum melanopus Hook., Sp. Fil. 3: 64. t. 161. 1860; DeVol in Fl. Taiwan 1: 149. pl. 49. 1975. 雉尾烏毛蕨 Pl.112
    Blechnidium melanopus ( Hook.) Moore, Ferns Gr. Brit. Nat. Pr. Oct. ed 2. 210. 1860; Tagawa in Journ. Jap. Bot. 12: 541. 1936; H. lto, Fil. Jap. 111. pl. 102. 1944.
    Spicanta melanopus ( Hook.) O. Kze., Rev. Gen.Pl. 2: 821. 1891.
    Blechnum plagiogyriifrons Hayata, lc. Pl. Form. 6: 157. pl. 20.1916.
    Blechnidium plagiogyriifrons ( Hayata) Hayata in Bot. Mag. Tokyo 40: 704. 1927; Masamune, Short Fl. Form. 8. 1936.
    Rhizome creeping; scales abundant, dark brown, lanceolate, entire; c. s. with 2 large bundles and 4 smaller ones. Stipes distant, about as long as lamina, persistent, dark brown, sparingly scaly at base,