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89 results for “Diplazium”
FIGURE 6 in Diplazium yinchanianum (Athyriaceae): A New Fern from the Border between China and Vietnam
FIGURE 6. Spore morphology. Diplazium yinchanianum (A, B); D. yaoshanense (C); D. virescens (D). D is from Chang et al. (2001).
FIGURE 3. Diplazium yinchanianum.—A. Habit.—B in Diplazium yinchanianum (Athyriaceae): A New Fern from the Border between China and Vietnam
FIGURE 3. Diplazium yinchanianum.—A. Habit.—B. Portion of pinna (drawn by Hong-Jin Wei, based on the holotype).
FIGURE 2 in Diplazium yinchanianum (Athyriaceae): A New Fern from the Border between China and Vietnam
FIGURE 2. ML tree of Diplazium based on the matK, rbcL, and trnL-F sequences. Numbers on branches are support values (PP BI / BS ML). PP ≥0.95, BS ≥75%, PP = 1.0, BS = 100%. Dash (-) indicates nodes with BS <75%.
A reassessment of the little-known Amazonian fern Diplazium praestans based on molecular and morphological evidence
<p><b>Family- and genus-level circumscription of ferns in the suborder Aspleniineae (eupolypods II) has long been controversial, due in part to confusion about the relationship among the families Aspleniaceae and Athyriaceae. Recent studies have demonstrated that character states traditionally used to infer a close relationship between these two families are either symplesiomorphic or homoplastic, and re-examination of numerous taxa has led to the recircumscription of several clades, and the description of several new families and genera. In light of these findings, we re-evaluated the taxonomic affinities of Diplazium praestans, a little-known fern from western Amazonia that is morphologically disparate to the remainder of Neotropical Diplazium. Using sequence data from three chloroplast markers and analysis of eight morphological characters, we demonstrate that Diplazium praestans was erroneously placed in that genus and instead is a Hymenasplenium. We place it in a phylogenetic context, reassess its morphology in light of our findings, evaluate its conservation status under IUCN criteria, and provide a new combination: Hymenasplenium praestans. We also provide an updated key to the Neotropical species of Hymenasplenium and discuss unresolved taxonomic problems in the genus.</b></p>
FIGURE 10. Diplazium zanzibaricum. Spores.—A–D in Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov.
FIGURE 10. Diplazium zanzibaricum. Spores.—A–D. Photographs: E.Fischer, W.Lobin & Y.Malkowsky, E.Fischer s.n., Gahinga. Scale bars: A. 20 µm; B, D. 10 µm; C 8 µm.
FIGURE 6. Diplazium humbertii.—A. Frond.—B in Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov.
FIGURE 6. Diplazium humbertii.—A. Frond.—B. Frond with young plant at apex developing from gemma.—C. Detail of stipe with scales.—D. Pinnules showing sori. Photographs: E.Fischer, A, C–D. Pindura-Bweyeye; B. Cyamudongo. Scale bars; A, B. 5 cm; C. 1 cm; D. 5 mm.
FIGURE 7. Diplazium humbertii.—A. Frond.—B in Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov.
FIGURE 7. Diplazium humbertii.—A. Frond.—B. Frond with young plant at apex developing from gemma.—C. Gemma at apex.—D. Rachis with base of pinnules.—E. Pinnules showing sori. Photographs: E.Fischer, Cyamudongo. Scale bars: A.10 cm; B, C, D.1 cm; E. 5 mm.
FIGURE 3 in Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov.
FIGURE 3. Diplazium cyamudongoense Eb.Fisch. & Lobin sp. nov.—A, B. Base of stipes with scales.—C–E. Fragments of brittle scales.—F, G. Detail of pinnules showing sori. Photographs: E.Fischer & W.Lobin, Cyamudongo. Scale bars; A, B, G. 1 mm; C, D, E. 2 mm; F. 3 mm; G. 1 mm.
FIGURE 1 in Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov.
FIGURE 1. Diplazium cyamudongoense Eb.Fisch. & Lobin sp. nov.—A, B. Fronds.—C, D. Pinnules. Photographs: E.Fischer, Cyamudongo. Scale bars: A, B. 10 cm; C, D. 1 cm.
FIGURE 9. Diplazium zanzibaricum.—A. Young shoot showing scales.— B in Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov.
FIGURE 9. Diplazium zanzibaricum.—A. Young shoot showing scales.— B. Detail of stipes with scales.—C. Pinnules showing sori. Photographs: E.Fischer, Gahinga. Scale bars: A. 5 cm; B, C. 1 cm.
FIGURE 8. Diplazium zanzibaricum.—A. Habit.—B. Frond.—C in Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov.
FIGURE 8. Diplazium zanzibaricum.—A. Habit.—B. Frond.—C. Pinnules showing sori. Photographs: E.Fischer, Karisoke. Scale bars: A, B. 20 cm, C. 1 cm.
FIGURE 5. Diplazium nemorale.— A in Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov.
FIGURE 5. Diplazium nemorale.— A. Pinnules. — Diplazium cyamudongoense Eb.Fisch. & Lobin sp. nov.— B–C. Pinnules. Photographs: E.Fischer, A. Pócs & Chambuko 6223; B–C. E.Fischer s.n. Scale bars: A, C. 3 mm; B. 5 mm. A reproduced with permission from BR.
FIGURE 4 in Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov.
FIGURE 4. Diplazium cyamudongoense Eb.Fisch. & Lobin sp. nov.—A–D. Spores. — Diplazium humbertii —E–F. Spores. Photographs: E.Fischer, W.Lobin & Y.Malkowsky, A–D. Cyamudongo; E–F. Cyamudongo. Scale bars: A, B, C, E, F. 10 µm; D. 8 µm.
A reassessment of the little-known Amazonian fern Diplazium praestans based on molecular and morphological evidence
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FIGURE 20 in Revision of the fern genus Diplazium (Polypodiales: Athyriaceae) in Thailand
FIGURE 20. Diplazium pallidum (Blume) T. Moore. A, living plant. B, herbarium specimen.
FIGURE 5 in Revision of the fern genus Diplazium (Polypodiales: Athyriaceae) in Thailand
FIGURE 5. Diplazium bellum (Blume) T. Moore.
FIGURE 24 in Revision of the fern genus Diplazium (Polypodiales: Athyriaceae) in Thailand
FIGURE 24. Diplazium petrii Tardieu. Lectotype of D. petrii Tardieu (Pételot 3589, P01449476).
Figure 4 from: Hori K, Murakami N (2019) Origin of the Diplazium hachijoense complex (Athyriaceae). PhytoKeys 124: 57-76. https://doi.org/10.3897/phytokeys.124.35242
Figure 4 The reticulogram of the D.hachijoense complex. Thin-solid arrow, autopolyploidization; Solid arrows, maternal inheritance; dashed arrows, paternal inheritance; square, triploid apogamous or diploid sexual species; dashed square, hypothesized diploid sexual or triploid apogamous species. *D.okinawaense had only nuclear AK1 allele A of D.dilatatum and B of D.takii, although plastid haplotype was D of D.amaminanum.
Figure 3b from: Hori K, Murakami N (2019) Origin of the Diplazium hachijoense complex (Athyriaceae). PhytoKeys 124: 57-76. https://doi.org/10.3897/phytokeys.124.35242
Figure 3b Full-data set of a 50% majority consensus tree resulting from Bayesian Markov chain Monte Carlo Baysean (B/MCMC) analysis of the nuclear gene AK1 with BIPP (>0.95) and MPBP (>70) node support values. Blue, diploid sexual; red, triploid apogamous; green, apogamous but ploidy was not estimated in this study.
Figure 2a from: Hori K, Murakami N (2019) Origin of the Diplazium hachijoense complex (Athyriaceae). PhytoKeys 124: 57-76. https://doi.org/10.3897/phytokeys.124.35242
Figure 2a A 50% majority consensus tree resulting from Bayesian Markov chain Monte Carlo Bayesian (B/MCMC) analysis of plastid intergenic spacer trnL-F with BIPP (>0.95) and MPBP (>70) node support values. The sequences were typified and made non-redundant by removing duplicate sequences.
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