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FIGURE 2. Polystichum dongchuanense.—A. Habit.—B in Polystichum dongchuanense and P. menglaense (subg. Haplopolystichum; Dryopteridaceae), two new ferns from Yunnan, China
FIGURE 2. Polystichum dongchuanense.—A. Habit.—B. Portion of abaxial lamina.—C. Basal petiole scale.—D, E. Rachis scales (Drawn by Zhen-Long Liang based on the holotype at PYU, scale bar A = 5 cm, B = 2.5 cm, C, D, E = 1 mm).
FIGURE 3. Polystichum menglaense.—A. Habitat.—B in Polystichum dongchuanense and P. menglaense (subg. Haplopolystichum; Dryopteridaceae), two new ferns from Yunnan, China
FIGURE 3. Polystichum menglaense.—A. Habitat.—B. Portion of abaxial lamina from a dry specimen.—C. Habit of the plant on the rock in the shade.—D. Basal petiole scale.—E. Microscale from abaxial lamina surface.—F. Rachis scale.—G. Portion of abaxial lamina from a freshly collected specimen.
FIGURE 1. Polystichum dongchuanense.—A. Habitat.—B in Polystichum dongchuanense and P. menglaense (subg. Haplopolystichum; Dryopteridaceae), two new ferns from Yunnan, China
FIGURE 1. Polystichum dongchuanense.—A. Habitat.—B. Habit of the plant on the rock.—C. Portion of abaxial lamina.—D. Portion of adaxial lamina.—E. Pinna apex showing sori and indusia.—F. SEM image of spore.
FIGURE 1 in Taxonomy of the fern genus Didymochlaena (Didymochlaenaceae) from Asia and Pacific islands based on morphological and molecular evidence with the description of four new species and one new status
FIGURE 1. The Maximum Likelihood phylogeny of Didymochlaena from Asia and Pacific region based on six plastid markers (atpA, atpB, matK, rbcL, rps4-trnS, and trnL-F). The maximum likelihood bootstrap support (left), maximum parsimony jackknife support (middle), and Bayesian inference posterior probability (right) are along the branches. Stars indicate the maximum support values in all three analyses.
FIGURE 2 in Taxonomy of the fern genus Didymochlaena (Didymochlaenaceae) from Asia and Pacific islands based on morphological and molecular evidence with the description of four new species and one new status
FIGURE 2. Morphology of the three new species from the Malesian region. A1–A3. Didymochlaena philippensis.—A1. Portion of rachis with pinna.—A2. Portion of pinna showing pinnules.—A3. Portion of pinna petiole showing pinnule and scales. B1–B3. D. punctata.—B1. Portion of rachis with pinna.—B2. Portion of pinna showing pinnules.—B3. Portion of pinna petiole showing pinnule and scales. C1–C3. Didymochlaena solomonensis.—C1. Portion of rachis with pinna.—C2. Portion of pinna showing pinnules.—C3. Portion of pinna petiole showing pinnule and scales. Didymochlaena fijiensis.—D1. Portion of rachis with pinna.—D2. Portion of pinna showing pinnules.—D3. Portion of pinna petiole showing pinnule and scales. Scale bars = 3 cm for A1, B1, C1 and D1; = 1 cm for others.
FIGURE. Jamesonia congesta (Christ) Christenh., House et al., 4053 (EAP). A. 2-pinnate-pinnatifid laminae; B. Vein ending in a small marginal fold; C. Brownish rhizome trichomes. in Ferns and Lycophytes of Honduras: A new annotated checklist
FIGURE. Jamesonia congesta (Christ) Christenh., House et al., 4053 (EAP). A. 2-pinnate-pinnatifid laminae; B. Vein ending in a small marginal fold; C. Brownish rhizome trichomes.
FIGURE 5 in Ferns and Lycophytes of Honduras: A new annotated checklist
FIGURE 5. Alsophila polystichoides Christ, Sean Feeney DA/4/MS Has3 (TCD). A. Laminae; B. Adaxial trichomes on rachis; C. Veins abaxially without trichomes.
FIGURE. Cyathea austroamericana Domin, Daniel L. Kelly and Anke C. Dietzsch 1509 (TCD). A. Laminae; B. The petioles with narrowly white margined scales and whitish petiole scurf. in Ferns and Lycophytes of Honduras: A new annotated checklist
FIGURE. Cyathea austroamericana Domin, Daniel L. Kelly and Anke C. Dietzsch 1509 (TCD). A. Laminae; B. The petioles with narrowly white margined scales and whitish petiole scurf.
FIGURE. Cumulative number of ferns and lycophytes, including varieties and hybrids, that were added to the Honduran flora since 1975 (A). Cumulative number of authors contributing to the addition of new records to the flora since 1975 (B). in Ferns and Lycophytes of Honduras: A new annotated checklist
FIGURE. Cumulative number of ferns and lycophytes, including varieties and hybrids, that were added to the Honduran flora since 1975 (A). Cumulative number of authors contributing to the addition of new records to the flora since 1975 (B).
FIGURE. Ferns. A. Microgramma percussa, B. Niphidium crassifolium, C. Pecluma plumula, D. Phlebodium decumanum, E. Pleopeltis crassinervata, F. Pleopeltis villagranii, G. Anetium citrifolium, H in Mexican Vascular Epiphytes: Richness and Distribution
FIGURE. Ferns. A. Microgramma percussa, B. Niphidium crassifolium, C. Pecluma plumula, D. Phlebodium decumanum, E. Pleopeltis crassinervata, F. Pleopeltis villagranii, G. Anetium citrifolium, H. Vittaria graminifolia. (Photographs by Aniceto Mendoza-Ruiz).
FIGURE. Lycophytes and ferns. A. Phlegmariurus myrsinites, B. Phlegmariurus taxifolius, C. Selaginella extensa, D. Asplenium praemorsum, E. Asplenium serratum, F. Holodictyum ghiesbreghtii, G. Lomaridium ensiforme, H. Elaphoglossum glaucum. (Photographs by Aniceto Mendoza-Ruiz). in Mexican Vascular Epiphytes: Richness and Distribution
FIGURE. Lycophytes and ferns. A. Phlegmariurus myrsinites, B. Phlegmariurus taxifolius, C. Selaginella extensa, D. Asplenium praemorsum, E. Asplenium serratum, F. Holodictyum ghiesbreghtii, G. Lomaridium ensiforme, H. Elaphoglossum glaucum. (Photographs by Aniceto Mendoza-Ruiz).
FIGURE 3. Ferns. A. Elaphoglossum peltatum, B. Dryopteris patula, C. Polybotrya polybotryoides, D. Didymoglossum membranaceum, E. Trichomanes galeottii, F. Lomariopsis recurvata, G. Alansmia cultrata, H in Mexican Vascular Epiphytes: Richness and Distribution
FIGURE 3. Ferns. A. Elaphoglossum peltatum, B. Dryopteris patula, C. Polybotrya polybotryoides, D. Didymoglossum membranaceum, E. Trichomanes galeottii, F. Lomariopsis recurvata, G. Alansmia cultrata, H. Campyloneurum phyllitidis. (Photographs by Aniceto Mendoza-Ruiz).
FIGURE 1. Hypodematium shingii Li Bing Zhang, X.P.Fan & X.F.Gao.—A. Habit.—B, D, F, G, K in Hypodematium shingii sp. nov. (Hypodematiaceae; Polypodiales): Replacing the misapplied "H. crenatum", a widespread fern from Asia
FIGURE 1. Hypodematium shingii Li Bing Zhang, X.P.Fan & X.F.Gao.—A. Habit.—B, D, F, G, K Pinnae or portion of pinnae.—C. Petiole.—E, H, J. Portions of laminae (A, B. Liang Zhang 1410 (CDBI); C–E. Liang Zhang 1819 (KUN); F–K. R. Knapp 4166 (P)).
FIGURE 2. A–C. Hypodematium shingii Li Bing Zhang, X.P.Fan & X.F.Gao.—A. Habit.—B in Hypodematium shingii sp. nov. (Hypodematiaceae; Polypodiales): Replacing the misapplied "H. crenatum", a widespread fern from Asia
FIGURE 2. A–C. Hypodematium shingii Li Bing Zhang, X.P.Fan & X.F.Gao.—A. Habit.—B. Abaxial view of portion of lamina.—C. Portion of pinnule/lobe showing sori (based on the type). D–F. H. crenatum (Forssk.) Kuhn & Decken.—D. Pinnule.—E. Adaxial view of portion of lobe.—F. Portion of pinnule/lobe showing sori (based on R. Spellenberg & M. Nasher 7345 (MO)).
FIGURE 1. Sphaeropteris guangxiensis Y.F in Sphaeropteris guangxiensis Y. F. Gu & Y. H. Yan (Cyatheaceae), a new species of tree fern from Southern China
FIGURE 1. Sphaeropteris guangxiensis Y.F. Gu & Y.H. Yan.—A. One pinna.—B. Pinnule segments.—C. Spores.
FIGURE 2. Sphaeropteris guanxiensis.—A & B. Habit.—C in Sphaeropteris guangxiensis Y. F. Gu & Y. H. Yan (Cyatheaceae), a new species of tree fern from Southern China
FIGURE 2. Sphaeropteris guanxiensis.—A & B. Habit.—C. Petioles and scales on the trunk.—D & E. Petiole crosscutting and the annular vascular bundles (photographed by Jun-Jie Luo).—F, G & H. Spore morphology.
FIGURE 2. Arachniodes vietnamensis Liang Zhang, N.T in Arachniodes libingii sp. nov. and A. vietnamensis sp. nov. (Dryopteridaceae), two new ferns from southern China and central Vietnam
FIGURE 2. Arachniodes vietnamensis Liang Zhang, N.T. Lu & T.T. Nguyen,—A. Abaxial surface of frond.—B. Portion of upper lamina.—C. Abaxial surface of pinnules.—D. Lateral pinnae.—E. Sori and portion of rachis showing densely appressed subulate/filiform scales.—F. Scales on stipe.—G. Scale on rachis.—H. Sparse, echinulate, perforate spore.—I. Perispore.—J. Indusia. Photo credit: Xinmao Zhou & Ngan Thi Lu.
FIGURE 1. Arachniodes libingii Liang Zhang, N.T in Arachniodes libingii sp. nov. and A. vietnamensis sp. nov. (Dryopteridaceae), two new ferns from southern China and central Vietnam
FIGURE 1. Arachniodes libingii Liang Zhang, N.T.Lu & T.T.Nguyen,—A. Habit.—B. Stipe base with darkish brown scales.—C. Young rhizome.—D. Upper pinnae with lamina apex.—E. Pinnules with young sori.—F. Pinnules with mature sori.—G. Portion of abaxial lamina with apex.—H. Portion of middle pinnae.—I. Portion of basal most pairs of pinnae. Photo credit: Liang Zhang.
FIGURE 1 in Correction for the taxonomy of the African fern Hymenophyllum senterreanum as synonym of the newly validated Hymenophyllum mildbraedii (Hymenophyllaceae, Polypodiidae)
FIGURE 1. Hymenophyllum senterreanum Dubuisson & Deblauwe (left: Droissart V., Couvreur T. & Kamdem N. 1836, holotype BRLU, BRLU0000909) and H. mildbraedii (Brause ex Brause & Hieron.) Alston (right: isotype, J. Mildbraed 670, BW 20 0105318) exhibit the same sori with the particular obconic base and the global campanulate shape. Note that on the right picture, receptacles are well exerted from the lips of the sori, a typical feature. Scale = 1 mm.
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>
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.