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Plants of Taiwan

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    台灣植物誌 第一版  Flora of Taiwan, 1st edition    Vol. 1

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    台灣植物誌第一版  Flora of Taiwan, 1st edition  1: 129


    15. P ARKERIACEAE
    CHARLES E. DEVOL
    Stems apparently absent, very short, erect; fibrous roots borne from near base of stipes; stipe scales thin, pale brown. Fronds glabrous, dimorphic, young leaves sterile, these either being deeply 3-lobed, pinnate or tripinnatifid (depending on the species); fertile leaves appearing later, taller, much dissected, pinnae con- tracted; venation anastomosing; areolae without included veinlets; tissues succulent. Sporangia borne in a single line along marginal' veins, globose, short-stalked, the annulus usually well developed, the dehiscence transverse; spores large, tetrahedral, ribbed; false indusia much reflexed, nearly meeting at midrib.
    A family of aquatic ferns with only one genus.
    1. CERATOPTERIS Brongn.
    Characters of the family.
    Four species, only one growing wild in Taiwan.
    1. Ceratopteris thalictroides (L.) Brongn. in Bull. Sci. Philom. 1821: 186. 1822; DeVol in Taiwania 13: 1. 1967. P1.43
    Fronds dimorphic, sterile fronds narrowly oblong in outline, bipinnatifid to tripinnatifid; stipe slender, about as long as blade; pinnae usually alternate, rarely opposite, the ultimate segments usually 2 to 3 mm wide, rarely wider. Fronds vary widely in size, usually from 10 to 35 cm tall; fertile fronds much taller than sterile. Sporangia globose, the annulus well developed; lip cells usually not well developed. Spore number 32.
    Widely distributed in the tropics of southeast Asia, the Pacific Islands, Mada- gascar, the West Indies, southern U. S. A., Central and South America. Growing in paddy fields, marshes, and along slow flowing streams.
    @@@TAIPEI: Taipei, Huang 1261; Peitou,Simozawa 733. ILAN: Toucheng, DeVol 8125.* TAOYUAN: Suzuki 3380. TAICHUNG: Sun Moon Lake, Kudo 15524. NANTOU: Puli, Hsu :548. TAINAN: Matao, Morimoto 279. PINGTUNG: Hsiaoliuchiu, Hosokawa 1606; Nan- jenshan, Kuoh 4149. TAITUNG: Kawakami 4791; Botel Tobago, Huang 7518.