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  • 1
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    Unknown
    General key No 1 to Pteropsida (1959)
    In:  Flora Malesiana - Series 2, Pteridophyta (0071-5786) vol.1 (1959) nr.1 p.9
    Details
    Publication Date: 2015-04-20
    Description: 1. Aquatic plants. 2. Plants floating. Leaves small, simple or bilobed . . . . . . . . . Salviniaceae 2. Plants rooted in earth or on rocks. Leaves larger, more divided. 3. Leaves 4-partite. Sporocarps attached to stipes. . . . . . . . . Marsileaceae 3. Leaves not 4-partite. Sporangia singly or in sori on lower surface of lamina. 4. Sporangia borne singly, protected by reflexed edges of narrow lamina . Adiantum Group 4. Sporangia grouped in sori, on lower surface of lamina, not protected by reflexed edges. 5. Fern of stream-beds in deep shade. Fronds pinnatifid, sori without indusia Polypodiaceae 5. Fern of open swamps. Fronds bipinnatifid, sori indusiate. . . . . Thelypteris Group
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
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