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Alsophila hookeri and Alsophila sinuata on a vertical earth bank, surrouded by many smaller Lindsaea venusta, Kanneliya FR, Sri Lanka
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Alsophila hookeri at the base of an earth bank, Kanneliya FR, Sri Lanka
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Alsophila hookeri on vertical earth bank, Kanneliya FR, Sri Lanka
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Alsophila hookeri, pinnate fronds, Kanneliya FR, Sri Lanka
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Alsophila hookeri, the initial stipe divided in three stipes, each with few fronds simultaneously alive, Kanneliya FR, Sri Lanka
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Alsophila hookeri, stipe divided in three branches, Kanneliya FR, Sri Lanka
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Alsophila hookeri, numerous hirsute roots along the stipe, Kanneliya FR, Sri Lanka
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Patrick Blanc and some individuals of Alsophila sinuata on earth bank in forest understory, Kanneliya, Sri Lanka, Nov. 2024
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Patrick Blanc observing Alsophila sinuata growing on an almost vertical earth bank, Kanneliya FR, Sri Lanka, Nov. 2024
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Pascal Héni, just after filming a dense population of Alsophila sinuata, Kanneliya FR, Sri Lanka, Nov. 2024
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Patrick Blanc and Alsophila sinuata, the only tree fern with entire fronds, Kanneliya, Sri Lanka, Nov. 2024
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Alsophila sinuata, quite young individual with fronds dispersed all along the stipe, Kanneliya FR, Sri Lanka
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Alsophila sinuata on perhumid inclined earth banks in forest understory, Kanneliya FR, Sri Lanka
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Alsophila sinuata, population along a vertical earth bank, Kanneliya FR, Sri Lanka
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Alsophila sinuata on earth bank, Kanneliya FR, Sri Lanka
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Alsophila sinuata, dense population on earth bank, Kanneliya FR, Sri Lanka
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Alsophila sinuata, slightly undulate fronds, Kanneliya FR, Sri Lanka
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Alsophila sinuata, old individuals with fronds condensed in a terminal rosette, Kanneliya FR, Sri Lanka
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Alsophila sinuata on damp soil in forest understory, Kanneliya FR, Sri Lanka,
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Alsophila sinuata, tiers of rosetted fronds from clustered stems, Kanneliya FR, Sri Lanka
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Alsophila sinuata in the cracks of rocks in a forest stream, Kanneliya FR, Sri Lanka
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Alsophila sinuata on vertical rock faces just above a forest stream, Kanneliya FR, Sri Lanka
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Alsophila sinuata, oblique stipe on vertical earth bank, Kanneliya FR, Sri Lanka
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Alsophila sinuata, oblique stipe on vertical bank, Kanneliya FR, Sri Lanka
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Alsophila sinuata, base of the stipe anchored with adventitious roots to vertical earth bank, Kanneliya FR, Sri Lanka
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Alsophila sinuata, base of the stipe with stiff erect roots, Kanneliya FR, Sri Lanka
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Alsophila sinuata, base of the fronds with shiny black petiole, Kanneliya FR, Sri Lanka
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Alsophila sinuata, young cross frond, Kanneliya FR, Sri Lanka
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Alsophila sinuata, young individuals mixed with other ferns on vertical earth bank, Kanneliya FR, Sri Lanka
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Alsophila sinuata, young individuals on vertical earth bank, Kanneliya FR, Sri Lanka
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Alsophila sinuata, undulate and incised fronds in young individuals, Kanneliya FR, Sri Lanka
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Alsophila sinuata, incised margin of fronds in young individuals, Kanneliya FR, Sri Lanka
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Alsophila sinuata, impressed veins on the adaxial surface of frond, Kanneliya FR, Sri Lanka
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Alsophila sinuata, venation on the abaxial frond surface, Kanneliya FR, Sri Lanka
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Alsophila sinuata, adaxial frond surface, each dot on the vein indicates a mature sorus on the abaxial surface, Kanneliya FR, Sri Lanka
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Alsophila sinuata, abaxial frond surface with sori, Kanneliya FR, Sri Lanka
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Alsophila sinuata, abaxial frond surface with sori along the veins, Kanneliya FR, Sri Lanka
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Alsophila sinuata, sori on the translucent veins, Kanneliya FR, Sri Lanka
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Alsophila sinuata, sori on the veins of the abaxial surface of the frond, Kanneliya FR, Sri Lanka
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Alsophila sinuata, sori, Kanneliya, Sri Lanka