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1,153 results for “Fern”
FIG. 22 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 22. — Specimen of Dryopteris subcrenulata (Baker) C.Chr., Humbert & Capuron 25055 (P00349518). Photo: MNHN, Paris Herbarium, 2009.
FIG. 20 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 20. — Indumentum and indusium of Dryopteris pentheri (Krasser) C.Chr.: A, stipe scale; B, rachis scale; C, isocytic hair from abaxial lamin surface; D, 2-celled hair; E, unicellular oblong hair; F, indusium. Schelpe 6018 (BOL). Scale bars: A, B, F, 0.5 mm; C-E, 0.1 mm.
FIG. 31 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 31. — Indumentum and indusium of Nothoperanema squamiseta (Tagawa) Ching: A-B', stipe scales; C-D', rachis scales; E-F', pinnarachis scales; G, H, multistratose hairs from abaxial lamina surface; I, J, nothoperanemoid hairs; K, gland from adaxial lamina surface; L, L', indusium. Kluge 2457 (NBG). Scale bars: A, 0.5 mm; A-F, L, 0.5 mm; A', A", B', D', E', F', G-K, L', 0.1 mm.
FIG. 18 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 18. — Indumentum of Dryopteris manniana (Hook.) C.Chr.: A, stipe scale; B, rachis scale; C, pinna-rachis scale; D-F, scale and hairs from abaxial lamina surface. Roux 2857 (NBG). Scale bars: A-D, 0.5 mm; E, F, 0.1 mm.
FIG. 17 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 17. — Specimen of Dryopteris manniana (Hook.) C.Chr., Humbert 11875 (P00349512). Photo: MNHN, Paris Herbarium, 2009.
FIG. 16 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 16. — Distribution of Dryopteris comorensis (Tardieu) Fraser-Jenk. (z) and D. manniana (Hook.) C.Chr. (Δ) in Madagascar and neighbouring Indian Ocean islands.
FIG. 14 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 14. — Specimen of Dryopteris comorensis (Tardieu) Fraser-Jenk., Rakotondrainibe 1739 (P00100256). Photo: MNHN, Paris Herbarium, 2009.
FIG. 12 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 12. — Indumentum and indusium of Dryopteris bojeri (Baker) Kuntze: A, stipe scale; B, rachis scale; C, D, pinna-rachis scale; E, F, scales from abaxial lamina surface; G, H, hairs from abaxial lamina surface; I, indusium. Commerson s.n. (P00349589). Scale bars: A-F, I, 1 mm; G, H, 0.2 mm.
FIG. 25 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 25. — Specimen of Dryopteris kilemensis (Kuhn) Kuntze, Rakotondrainibe 5820 (P00181242). Photo: MNHN, Paris Herbarium, 2009.
FIG. 15 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 15. — Indumentum and indusium of Dryopteris comorensis (Tardieu) Fraser-Jenk.: A, stipe scale; B, rachis scale; C, pinna-rachis scale; D, costa scale; E, indusium, F, G, hairs from abaxial lamina surface. Floret 957 (P00220421). Scale bars: A-E, 1 mm; F, G, 0.1 mm.
FIG. 23 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 23. — Indumentum and indusium of Dryopteris subcrenulata (Baker) C.Chr.: A, stipe scale; B, rachis scale; C, pinna-rachis scale; D, pinnule-rachis scale; E, indusium; F, hair from abaxial lamina surface. Humbert 18656 (P00349511). Scale bars: A-E, 1 mm; F, 0.1 mm.
FIG. 9 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 9. — Indumentum and indusium of Dryopteris bernieri Tardieu: A, stipe scale; B, pinna-rachis scale; C, rachis scale; D, E, hairs from abaxial lamina surface; F, indusium. Jacobsen 5541 (FR). Scale bars: A-C, F, 1 mm; D, E, 0.1 mm.
FIG. 1 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 1. — Holotype of Dryopteris wallichiana (Spreng.) Hyl. subsp. madagascariensis (C.Chr.) J.P.Roux at the Natural History Museum, London (BM000801013).
FIG. 3 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 3. — Specimen of Dryopteris antarctica (Baker) C.Chr., de Cordemoy 41 (P00349527). Photo: MNHN, Paris Herbarium, 2009.
FIG. 2 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 2. — Scales of Dryopteris wallichiana (Spreng.) Hyl. subsp. madagascariensis (C.Chr.) J.P.Roux: A, B, stipe scales; C, C', D, rachis scales; E, scale from abaxial lamina surface; F, G, scales from lamina margin. De la Bâthie 16454 (BM). Scale bars: A-G, 1 mm; C', 0.1 mm.
FIG. 6 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 6. — Indumentum and indusium of Dryopteris aquilinoides (Desv.) C.Chr.: A, stipe scale; B, C, rachis scales; D, E, scales from abaxial lamina surface; F, indusium; G, hair from abaxial lamina surface. Badré 1039 (P00349559). Scale bars: 1 mm.
FIG. 5 in The fern genera Dryopteris and Nothoperanema (Dryopteridaceae) in Madagascar and neighbouring Indian Ocean islands, including Saint Paul
FIG. 5. — Distribution of Dryopteris wallichiana (Spreng.) Hyl. subsp. madagascariensis (C.Chr.) J.P.Roux (Δ), and Dryopteris antarctica (Baker) C.Chr. (z). The solid square (·) indicates where both species occur.
FIG. 9 in Lygodium hians E.Fournier (Pteridophyta, Schizaeales) - an endemic unusual groundclothing member of a modern climbing fern genus in New Caledonia
FIG. 9. — Cretacous Lygodium cretaceum Debey & Ettingshausen: A, pinnule fragment with sterile basal portion (left of image) and fertile terminal sorophore (Natural History Museum, Vienna, Department of Geology and Palaeontology, specimen 1857/0008/0004).B, scanning electron microscope image, FEGSEM uncoated directly of specimen on rock, showing part of sorophore from A, with three 'bulges' likely representing original positions of single sporangia, each associated with an elongate marginal protrusion interpreted as an indusium; no details of sporangia and no spores were visible on any specimens examined. Scale bars: A, 2 mm; B, 1 mm.
FIG. 8 in Lygodium hians E.Fournier (Pteridophyta, Schizaeales) - an endemic unusual groundclothing member of a modern climbing fern genus in New Caledonia
FIG. 8. — In situ spores of Lygodium hians E.Fournier, scanning electron microscope images, uncoated FEGSEM: A, spore showing verrucate to irregularly reticulate ornament (preparation from specimen Nr. 00.nov.00 01836, Herb. Leiden), SEM stub now deposited in Leiden; B, spore showing verrucate to irregularly reticulate ornament (preparation from specimen MNHN P00630569, Herb. P., SEM stub now deposited in Paris. Scale bars: A, 30 µm; B, 50 µm.
FIG. 7 in Lygodium hians E.Fournier (Pteridophyta, Schizaeales) - an endemic unusual groundclothing member of a modern climbing fern genus in New Caledonia
FIG. 7. — Isolated spores of Lygodium hians E.Fournier, light microscope images; preparation from specimen from Mt. Panié, New Caledonia (Nr. 00.nov.00 01836, Herb. Leiden). Slides now deposited in Leiden:A, spore with perispore showing verrucate to irregularly reticulate ornament; B, spore lacking perispore, showing clear margo adjacent to trilete laesurae; C, perispore isolated from spore showing thick and robust structure and verrucate to irregularly reticulate ornament. Scale bars: 50 µm.
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