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1,153 results for “Fern”
FIGURE 1 in New records for the fern and lycophytes flora of Uíge, Northern Angola
FIGURE 1. Map showing the localization of Angola in Africa (A), the province of Uíge in Angola (B), and of the municipality of Uíge within the province with the same name (C), with the delimitation of the vegetation zones (adapted from Lautenschläger et al. 2018).
FIGURE 1 in Polystichum asiae-minoris (Dryopteridaceae), a new fern from Kastamonu, Turkey
FIGURE 1. Polystichum asiae-minoris Tunçkol & Li Bing Zhang.—A. Plant habit.—B. Leave.—C. Pinnae.—D. Rachis scale.—E. Scale from middle of petiole.—F. Scale from base of petiole. A–F drawn by ZLL based on the holotype (Scale A, B, C=1 cm; D=0.5 mm; E & F=1 mm).
FIGURE 2 in Polystichum asiae-minoris (Dryopteridaceae), a new fern from Kastamonu, Turkey
FIGURE 2. Polystichum asiae-minoris Tunçkol & Li Bing Zhang.—A. The canyon where the new species was discovered.—B–D. Habit in the field.—E. Lower portion of plant.—F. Upper portion of adaxial leaf surface.—G. Lower portion of adaxial leaf surface.—H, J, K. Portions of abaxial leaf surfaces.
FIGURE 2 in Typification of the Linnaean name Onoclea polypodioides, type of the fern genus Gleichenia (Gleicheniaceae, Polypodiopsida)
FIGURE 2. Neotype of G. polypodioides: G. Rouhan et al. 1747 (P P02434554). This image is © copyright of the Muséum National d'Histoire Naturelle (MNHN)—Paris Herbarium (P).
FIGURE 1. Onoclea polypodioides L in Typification of the Linnaean name Onoclea polypodioides, type of the fern genus Gleichenia (Gleicheniaceae, Polypodiopsida)
FIGURE 1. Onoclea polypodioides L. housed at LINN (1242.3). This image is © copyright of The Linnaean Society of London.
FIGURE 3 in Typification of the Linnaean name Onoclea polypodioides, type of the fern genus Gleichenia (Gleicheniaceae, Polypodiopsida)
FIGURE 3. Neotype of G. polypodioides: G. Rouhan et al. 1747 (P P02434554). A-B. Habit of G. polypodioides. C. Frond primary branch, showing the bud with pseudostipule. D. Secondary branch showing the bud without the pseudostipule. E. Ultimate branch adaxial surface. F. Ultimate branch abaxial surface. G. Detail of the ultimate branch abaxial surface showing the soral chamber. H. Rhizome detail showing the stellate scales. Scale bars = 5 mm.
FIGURE 1. Lindsaea linduensis A. Habit, scale bar 5 in Lindsaea linduensis (Lindsaeaceae, Polypodiales), a new fern species from Sulawesi, Indonesia
FIGURE 1. Lindsaea linduensis A. Habit, scale bar 5 cm. B. Ultimate segment, scale bar 1 cm C. Rhizome scale, scale bar 1 mm. All from Cicuzza 891 (Z). Drawing by D. Cicuzza.
FIGURE 1. Polystichum hainanicola.—A. Habitat.—B in Polystichum hainanicola (Dryopteridaceae), a new fern species from Hainan Island, China
FIGURE 1. Polystichum hainanicola.—A. Habitat.—B. Plants in field.—C. Lower portion of fronds.—D. Adaxial view of lower portion of frond.—E. Adaxial view of upper portion of frond.—F. Abaxial view of upper portion of frond.—G. Abaxial view of portion of frond.
FIGURE 2. Polystichum hainanicola.—A. Habit.—B in Polystichum hainanicola (Dryopteridaceae), a new fern species from Hainan Island, China
FIGURE 2. Polystichum hainanicola.—A. Habit.—B. Portion of rachis with pinna.—C. Stipe scale.—D. Rachis scale.—E. Microscale.
FIGURE 1 in Taxonomic update, distribution and conservation status of grammitid ferns (Polypodiaceae, Polypodiopsida) in Veracruz State, Mexico
FIGURE 1. Map of Veracruz and bordering states, Mexico, indicating Los Tuxtlas and central montane area around the capital city of Xalapa.
FIGURE 1 in The fern genus Dryopteris (Dryopteridaceae) in Ascension and Saint Helena islands, Atlantic Ocean
FIGURE 1. Pinnules, scales and indusium of Dryopteris ascensionis. A, abaxial surface of proximal part of basal pinna showing the venation and basiscopic development; B, stipe scale; C & D, rachis scales; E & F, pinna-rachis scales; G lamina scales: abaxial surface; H & I, hairs from abaxial surface of lamina; J, indusium; Bb, Dd & Jj showing cellular structure of scales and indusium. Illustrations all based on Gordon 119 (K). Scale bars: A, 5 mm; B–F, I, 0.5 mm; G, H, Bb–Jj, 0.1 mm. Illustrations prepared by J.P. Roux.
FIGURE 4 in The fern genus Dryopteris (Dryopteridaceae) in Ascension and Saint Helena islands, Atlantic Ocean
FIGURE 4. Lectotype of Dryopteris napoleonis (Bory) Kuntze, Bèlangé s.n. (P00301433). MNNH, Paris Herbarium, 2012.
FIGURE 3 in The fern genus Dryopteris (Dryopteridaceae) in Ascension and Saint Helena islands, Atlantic Ocean
FIGURE 3. Pinnules, scales and indusium of Dryopteris napoleonis. A, abaxial surface of pinnules showing the venation and sori; B & C, stipe scales; D & E, rachis scales; F & G, pinna-rachis scales; H & I, hairs from abaxial surface of lamina; J, indusium; Dd, Ff & Jj showing cellular structure of scales and indusium. Illustrations all based on Burchell 172 (K). Scale bars: A, 5 mm; B, 0.5 mm; C–G, 0.5 mm; H–J, 0.1 mm; Dd–Jj, 0.1 mm. Illustrations prepared by J.P. Roux.
FIGURE 2 in The fern genus Dryopteris (Dryopteridaceae) in Ascension and Saint Helena islands, Atlantic Ocean
FIGURE 2. Pinnules, scales and indusium of Dryopteris cognata. A, abaxial surface of pinnules showing the venation and sori; B & C, stipe scales; D, rachis scale; E & F, pinna-rachis scales; G & H, lamina scales: abaxial surface; I, indusium; Bb, Dd, Ff, Gg & Ii showing cellular structure of scales and indusium. Illustrations all based on Hooker s.n. (K). Scale bars: A, 5 mm; B–H, 0.5 mm; I, 1 mm; Bb–Ii, 0.1 mm. Illustrations prepared by J.P. Roux.
FIGURE 1 in Taxonomic novelties in the fern genus Tectaria (Tectariaceae)
FIGURE 1. Comparison of the venation between Tectaria griffithii (Baker) C.Chr. (a) and T. multicaudata (C.B.Clarke) Ching (b). a) Portion of a pinnule on basal pinna, based on the holotype of T. griffithii (Griffith s.n., K); b) portion of a pinnule on basal pinna, based on the holotype of T. multicaudata (Clarke 18427, K).
FIGURE 1. A–B. Cyathea corcovadensis. A in A proposal to distinguish several taxa in the Brazilian tree fern Cyathea corcovadensis (Cyatheaceae)
FIGURE 1. A–B. Cyathea corcovadensis. A. Pinna, silhouette (D.B.G. Bussmann 90, JOI); B. Detail of fertile pinnule, abaxially (N.P. Smith 330, FLOR). C–D. Cyathea feeana. C. Pinna, silhouette (A.F. Regnell 479, S); D. Detail of fertile pinnule, abaxially (G. Hatschbach 23226, MBM). E. Cyathea miersii. Pinna, silhouette (J. Miers 149, B). Same scale for all pinnae and details, respectively.
FIGURE 2 in A proposal to distinguish several taxa in the Brazilian tree fern Cyathea corcovadensis (Cyatheaceae)
FIGURE 2. Distributions of A. Cyathea atrovirens; B. Cyathea corcovadensis; C. Cyathea feeana; D. Cyathea miersii.
FIGURE 7 in Fern distributional records in Christensenia (Marattiaceae), Dipteris (Dipteridaceae), and Rheopteris (Pteridaceae) from the upper Sepik of Papua New Guinea
FIGURE 7. Christensenia aesculifolia (Blume) Maxon subsp. korthalsii (deVriese) Rolleri. A, sori; B, frond undersurfaces. Among marattioid ferns, Christensenia is unique in its reticulate venation, pedate fronds, circular synangia, and creeping rhizomes (Murdock 2008). A from Takeuchi, Ama & Gambia 25795; B from Takeuchi, Ama & Gambia 25315.
FIGURE 10. Rheopteris cheesmaniae Alston. A in Fern distributional records in Christensenia (Marattiaceae), Dipteris (Dipteridaceae), and Rheopteris (Pteridaceae) from the upper Sepik of Papua New Guinea
FIGURE 10. Rheopteris cheesmaniae Alston. A, aspect; B, venation and sori. The pinnate fronds and circular sori are (inter alia) anomalous features among vittarioid ferns. A–B from Takeuchi, Ama & Gambia 25387.
FIGURE 4 in Fern distributional records in Christensenia (Marattiaceae), Dipteris (Dipteridaceae), and Rheopteris (Pteridaceae) from the upper Sepik of Papua New Guinea
FIGURE 4. Dipteris lobbiana (Hook.) T.Moore. A, stipe; B, sori and venation. A–B from Takeuchi, Ama & Gambia 24962.
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OpenNeuro
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