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164 results for “Polypodiaceae”
Data from: Microsorum × tohieaense (Polypodiaceae), a new hybrid fern from French Polynesia, with implications for the taxonomy of Microsorum
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Data from: Ascogrammitis lehnertii (Polypodiaceae): A new and dominant understory-species from a diverse community of grammitid ferns in the Andes of Ecuador
In the scope of pantropical studies aimed at understanding how the diversity of grammitid ferns (Polypodiaceae) has evolved and is maintained, we studied a diverse grammitid community in treeline elfin forests in eight study plots of 400 m2 each at 3200 m on Cerro Toledo, Loja, southern Ecuador. We recorded a total of 7986 individuals of 16 grammitid species. Ascogrammitis lehnertii is here described as a new species. We also recorded Mycopteris leucosticta, a species previously believed to be restricted to the Chocó region of Ecuador. We found that the grammitid species were segregated by habitat into trunk-base and trunk specialists, which suggests that species coexistence in these diverse epiphytic communities is at least partly linked to habitat segregation. Ascogrammitis lehnertii and M. leucosticta were the second and third most abundant species, respectively, and both were mostly trunk-base species. The new species A. lehnertii differs from its congeners by the combination of its relatively broad lamina, (2‐)3‐4 cm wide, fertile leaves bearing 2 mm long reddish setae in and near the sori, and by bearing proliferous roots from which new plants emerge. Phylogenetic analyses of atpß, rbcL, rps4, trnG-trnR, and trnL-trnF DNA molecular sequences, using maximum likelihood, place A. lehnertii as sister to A. cuencana with strong support. Despite previous intensive collection efforts in Loja for the past 30 yr, all but one of the collections of this new species were made in the last three years. The discovery of A. lehnertii and the new record of M. leucosticta highlight the patchy distribution of some species in the Andes and the value of surveying habitats that potentially host unrecognized plant diversity. In order to facilitate further discovery, we provide a key to all species of Ascogrammitis.
FIGURE 3 in Reinstatement of Loxogramme yigongensis (Polypodiaceae), an endemic species from southeastern Xizang, China
FIGURE 3. Maximum likelihood phylogeny of Loxogramme based on five plastid markers (rbcL, rps4, rps4-trnS, trnL, trnL-F). Maximum likelihood bootstrap support (MLBS) and Bayesian inference posterior probability (BIPP) are given on the left and right along the branches. Voucher information is indicated in blue, geographical provenances are indicated after voucher in black.
FIGURE 2 in Reinstatement of Loxogramme yigongensis (Polypodiaceae), an endemic species from southeastern Xizang, China
FIGURE 2. Photographs of chromosome numbers and genome size by flow cytometry.—A & B. Somatic chromosomes of Loxogramme grammitoides (scale bars=5 μm).—C & D. Estimation of genome size of L. grammitoides (Zhang et al. 4645, KUN) and L. yigongensis (Zhang et al. 4105, KUN). The horizontal axis indicates fluorescence intensity. Zea mays was used as a calibration standard.
FIGURE 1. Loxogramme yigongensis.—A. Habit.—B. Adaxial lamina.—C in Reinstatement of Loxogramme yigongensis (Polypodiaceae), an endemic species from southeastern Xizang, China
FIGURE 1. Loxogramme yigongensis.—A. Habit.—B. Adaxial lamina.—C. Portion of abaxial lamina showing sori.—D. Rhizome.—E. Rhizome scale.—F–H. Spores (Scale bars: E. 0.5 mm; F. 0.5 µm; G–H. 10 µm).
FIGURE 13. Leptochilus wusugongii Liang Zhang & Li in Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot
FIGURE 13. Leptochilus wusugongii Liang Zhang & Li Bing Zhang,—A. Habit.—B. Rhizome.—C. Rhizome scales.—D. Portion of abaxial lobe showing sori.—E. Portion of adaxial lobe. Photo credit: Liang Zhang.
FIGURE 11. Leptochilus sinovietnamica Liang Zhang, N.T in Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot
FIGURE 11. Leptochilus sinovietnamica Liang Zhang, N.T. Lu & Li Bing Zhang,—A & B. Abnormal individuals with one pair of lobes.— C. Portion of adaxial lamina.—D. Upper portion of abaxial lamina showing sori.—E. Portion of abaxial lamina lobe.—F. Rhizome.—G. Rhizome scales. Photo credit: Liang Zhang.
FIGURE 10. Leptochilus neolongipes Liang Zhang, X.M. Zhou, T.T. Luong & Li in Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot
FIGURE 10. Leptochilus neolongipes Liang Zhang, X.M. Zhou, T.T. Luong & Li Bing Zhang,—A. Habitat.—B. Abaxial lamina.—C. Adaxial lamina.—D. Portion of abaxial lamina showing sori.—E. Portion of adaxial lamina. Photo credit: Xin Mao Zhou.
FIGURE 12. Leptochilus vietnamensis Liang Zhang, N.T in Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot
FIGURE 12. Leptochilus vietnamensis Liang Zhang, N.T. Lu & Li Bing Zhang,—A. Habit.—B. Abaxial laminae.—C. Abaxial view of portion of sterile lamina.—D. Rhizomes and petioles.—E. Rhizome scales. Photo credit: Liang Zhang.
FIGURE 7. Leptochilus locii Liang Zhang, N.T in Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot
FIGURE 7. Leptochilus locii Liang Zhang, N.T. Lu & Li Bing Zhang,—A. Habitat.—B. Adaxial view of sterile frond.—C. Habit.—D. Abaxial view of sterile frond.—E. Abaxial view of fertile lamina.—F. Adaxial view of fertile lamina. Photo credit: Liang Zhang.
FIGURE 6 in Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot
FIGURE 6. Leptochilus khammouanensis Liang Zhang, Khamphanh Thepkaysone & Zhuo Zhou,—A. Habitat.—B. Habit.—C. Portion of abaxial lamina showing sori.—D. Adaxial lamina.—E. Abaxial lamina lacking sori.—F. Abaxial lamina with sori.—G. Rhizome. Photo credit: Liang Zhang.
FIGURE 4. Leptochilus daklakensis Liang Zhang, X.M. Zhou & Li in Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot
FIGURE 4. Leptochilus daklakensis Liang Zhang, X.M. Zhou & Li Bing Zhang,—A, B, C. Habit.—D. Abaxial view of fertile lamina.— E. Rhizome scales. Photo credit: Xin-Mao Zhou.
FIGURE 2 in Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot
FIGURE 2. Distribution map of the 11 new species. The approximate distribution range of Leptochilus is indicated in green. Red dots indicate the new species.
FIGURE 1 in Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot
FIGURE 1. Phylogeny of Leptochilus based on six plastid markers (modified from Zhang et al. 2024). Orange color indicates the new species described here.
FIGURE 5 in Leptochilus tridigitatus (Polypodiaceae), a new fern species from Guangdong, China
FIGURE 5. Comparison of cultivated individuals of Leptochilus tridigitatus (C & D) and L. scandens (A & B).
FIGURE 4 in Leptochilus tridigitatus (Polypodiaceae), a new fern species from Guangdong, China
FIGURE 4. Geographical distributions of Leptochilus tridigitatus (red rings) and L. poilanei (green ring).
FIGURE 3. Leptochilus tridigitatus H.J. Wei.—A. Habit.—B in Leptochilus tridigitatus (Polypodiaceae), a new fern species from Guangdong, China
FIGURE 3. Leptochilus tridigitatus H.J. Wei.—A. Habit.—B. Portion of sterile lamina showing venation.—B. Portion of apical lobe of fertile frond showing venation and sori.
FIGURE 2. Leptochilus tridigitatus H.J. Wei.—A. Habitat.—B. Habit.—C in Leptochilus tridigitatus (Polypodiaceae), a new fern species from Guangdong, China
FIGURE 2. Leptochilus tridigitatus H.J. Wei.—A. Habitat.—B. Habit.—C. Rhizome with sterile fronds and lower portions of stipes of fertile fronds.—D. Adaxial view of sterile frond.—E. Abaxial view of fertile lamina.—F. Portion of apical lobe of fertile frond.—G. Rhizome scale.
FIGURE 1 in Leptochilus tridigitatus (Polypodiaceae), a new fern species from Guangdong, China
FIGURE 1. Maximum likelihood phylogeny of Leptochilus based on five plastid markers (rbcL, rps4, rps4-trnS, trnL, trnL-F). Maximum likelihood bootstrap support (MLBS) values are above the branches.
FIGURE 3 in Selliguea quinquefida (Polypodiaceae), a new calciphilous species from a karst area in Guangxi, China
FIGURE 3. Geographical distribution of Selliguea quinquefida H.J. Wei (center of rings) in Guangxi Zhuang Autonomous Region, China.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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