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311 results for “Persicaria”
Kellogg Biological Station site, station Treatment 4, certified oganic, no chemical inputs, annual tillage, rotary-hoed to control weeds, study of aboveground net primary productivity of Polygonum persicaria in units of gramsPerMeterSquaredPerYear on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Kellogg Biological Station (KBS) contains aboveground net primary productivity of Polygonum persicaria measurements in gramsPerMeterSquaredPerYear units and were aggregated to a yearly timescale.
Kellogg Biological Station site, station Kellogg Biological Station, study of aboveground net primary productivity of Polygonum persicaria in units of gramsPerMeterSquaredPerYear on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Kellogg Biological Station (KBS) contains aboveground net primary productivity of Polygonum persicaria measurements in gramsPerMeterSquaredPerYear units and were aggregated to a yearly timescale.
FIGURE 1 in Novelties in Persicaria (Polygonaceae): description of a narrowly endemic new species from southern Brazil, and typification of the name Polygonum minus
FIGURE 1. Field photographs of Persicaria humboldtiana. A. Habit. B. Flower and ochreolae in lateral view. C. Flower in frontal view. D. Ochrea and stem. E. Leaf blade, abaxial surface. F. Leaf blades, adaxial surface. G. Inflorescence. Photographs by L.A. Funez.
FIGURE 3 in Novelties in Persicaria (Polygonaceae): description of a narrowly endemic new species from southern Brazil, and typification of the name Polygonum minus
FIGURE 3. Epitype of Polygonum minus (E.C. Wallace s.n., BM barcode BM001072687). Copyright: Natural History Museum, London.
FIGURE 4 in Morphological traits of gynodioecious Persicaria amphibia (Polygonaceae)
FIGURE 4. LM and SEM micrographs of micromorphological structures of perianth, pedicel and leaf in P. amphibia: A) basal part of inner perianth (female type = F), B) several protrusions (nectary) above disc (hermaphroditic type = H), C) inner cell structure of perianth (H), D) stomatal complex of outer perianth (F), E) scattered peltate-glandular trichomes on the pedicel (F), F) stomata of abaxial side of leaf (H), G) peltate-glandular trichome and stomata of abaxial side of leaf (F), H) peltate-glandular trichome with multicellular secretory head (F), I) anatomical structure of peltate-glandular trichome (H), J) strigose trichome of adaxial side of leaf (H), K) anatomical structure of strigose trichome, L) midrib with distribution of strigose non-glandular trichomes (H), M) pilate-glandular trichome of abaxial side of
FIGURE 2 in Morphological traits of gynodioecious Persicaria amphibia (Polygonaceae)
FIGURE 2. SEM micrographs of sexual organs of Persicaria amphibia in detail: A) pistil of hermarphrodite flower, B) stigma of female flower, C) detailed cell structure of stigma surface, D−F) fertile stamen of hermaphrodite: D) matured anther with pollen grains, E) endothecium thickening, F) cell surface of outer epidermis of anther, G−I) sterile stamen of female flower: G) stamen with reduced anther, H) cell structure of ventral side, I) cell structure of dorsal side.
FIGURE 3 in Morphological traits of gynodioecious Persicaria amphibia (Polygonaceae)
FIGURE 3. LM and SEM micrographs of anther development and pollen morphology: A, C) longitudinal section of mature flower, B, D) cross section of mature flower (A−B: hermaphroditic type, C−D: female type), E−F) anther development of hermaphroditic flower: E) 'stage 6' showing meiotic cell which surrounded by tapetum, F) 'stage 10–11' showing tapetum degenerates and pollen mitotic divisions occur, G) pollen grain with pentagonal arrangement of colpi, H) detail of colpus area, I) semitectate-reticulate sexine ornamentation with free standing columellae in lumen, J−K) anther development of female flower, J) 'stage 6' showing same structure with hermaphrodite anther, K) 'stage 10' of abnormal anther without pollen generate which is comparable with normal anther development (see Fig. 3F); vascular region (V), tapetum (T), epidermis (E), endothecium (EN), collapse locule (CL), pollen grain (PG), meiotic cell (MC), stomium region (SR).
FIGURE 1. A−C in Morphological traits of gynodioecious Persicaria amphibia (Polygonaceae)
FIGURE 1. A−C) photographs of Persicaria amphibia: A) habit, B) hermaphrodite inflorescence with exerted anther, C) female inflorescence with exerted stigma, D−E) line drawings of open flower: D) hermaphrodite flower, E) female flower. Scale bars 1mm.
FIGURE 5 in On the resurrection of Persicaria puritanorum (Polygonaceae)
FIGURE 5. Leaf character measurement from Persicaria maculosa (MACU) and P. puritanorum (PURI). P value from t-test. See methods for more details.
FIGURE 6 in On the resurrection of Persicaria puritanorum (Polygonaceae)
FIGURE 6. Hypothetical diagrams of possible scenarios presenting allopolyploid hybrid speciation. The number in parenthesis represents diploid chromosome number (2n). More details see discussion.
FIGURE 3 in On the resurrection of Persicaria puritanorum (Polygonaceae)
FIGURE 3. Somatic chromosomes of Persicaria puritanorum. It is counted into 2n = 60. Scale bar is 10 μm.
FIGURE 2. 50 in On the resurrection of Persicaria puritanorum (Polygonaceae)
FIGURE 2. 50 % major-rule consensus tree from Bayesian inference for nrITS (left side) and cp matK and partial trnK intron region (right side). Posterior probabilities are presented under the branches. Bootstrap values for maximum parsimony / maximum likelihood analyses are presented above the branches. N-dash (-) indicates support of less than 50 % bootstrap value or 0.5 posterior probability.
FIGURE 1 in On the resurrection of Persicaria puritanorum (Polygonaceae)
FIGURE 1. Simple diagram of plastid matK (black box), trnK 5' intron (left side line), and trnK 3' intron region (right side line) including amplification and sequencing primers used in this study. Amplification primers are trnK 11 and trnK 2621. Primer sequences are listed 5' to 3'. * see Young et al. 1999.
FIGURE 4 in On the resurrection of Persicaria puritanorum (Polygonaceae)
FIGURE 4. Distribution map of Persicaria puritanorum. See Appendix 1 for more detailed localities. Some localities are overlapped.
FIGURE 3 in Leaf micromorphology of the Persicaria sect. Cephalophilon (Polygonaceae) and its systematic re-evaluation
FIGURE 3. Summary of leaf epidermal characters with stomatal complex and crystals in Persicaria sect. Cephalophilon and related taxa in Koenigia using LM and SEM. A. Persicaria chinensis var. ovalifolia with cuticular striation (AD); B. P. chinensis var. paradoxa, anomocytic stomata with undulate ACW (AB); C–D. P. nepalensis, anomocytic and anisocytic stomata with striation (AD); E. P. chinensis var. chinensis with idioblast of AD side (white arrow); F. P. nepalensis with resin cup on AB side (white arrow), G–H. druse crystal (rosette crystals); G. P. capitata; H. P. chinensis var. ovalifolia, I. prismatic crystals (black arrow), Koenigia pilosa. AD, adaxial side; AB, abaxial side. Images: M.-J. Kong.
FIGURE 2 in Leaf micromorphology of the Persicaria sect. Cephalophilon (Polygonaceae) and its systematic re-evaluation
FIGURE 2. LM micrographs of adaxial (AD) side of leaf in Persicaria sect. Cephalophilon and related taxa in Koenigia. A. Persicaria palmata (amphistomatic); B. P. capitata (amphistomatic); C. P. chinensis var. chinensis with idioblast (black arrow); D. P. chinensis var. hispida; E. P. chinensis var. ovalifolia; F. P. chinensis var. paradoxa; G. P. microcephala var. microcephala; H P. microcephala var. sphaerocephala; I. P. microcephala var. wallichii; J. P. runcinata var. runcinata; K. P. sinuata (amphistomatic); L. P. stringdbergii; M. P. umbrosa; N. P. criopolitana (amphistomatic); O. P. glacialis var. glacialis (amphistomatic); P. P. glacialis var. przewalskii (amphistomatic); Q. Koengia delicatula (amphistomatic); R. K. nepalensis; S K. pilosa; T. K. islandica. (scale bar = 25 μm, all have same scale). Images: M.-J. Kong.
FIGURE 1 in Leaf micromorphology of the Persicaria sect. Cephalophilon (Polygonaceae) and its systematic re-evaluation
FIGURE 1. LM micrographs of abaxial (AB) side of leaf in Persicaria sect. Cephalophilon and related taxa in Koenigia. Most taxa have undulate ACW on AB side. A. Persicaria palmata, Para; B. P. chinensis var. chinensis, Ano and Ani; C. P. chinensis var. hispida, Ano and Ani with straight or curved ACW; D. P. chinensis var. ovalifolia, Ano and Ani; E. P. chinensis var. paradoxa, Ano and Ani; F. P. microcephala var. microcephala, Ano and Ani with sinuate ACW; G. P. microcephala var. sphaerocephala, Ano and Ani; H. P. microcephala var. wallichii, Ano and Ani; I. P. runcinata var. sinensis, Ano and Ani; J. P. sinuata, Ano and Ani stomata with sinuate and undulate ACW; K. P. stringdbergii, Ano with undulate and curved ACW; L. P. umbrosa, Ano and Ani with sinuate and undulate ACW; M. P. criopolitana, Ano, Ani, and Para (black arrows) with undulate and curved ACW; N. P. glacialis var. glacialis, Ano with undulate and curved ACW; O. P. glacialis var. przewalskii, Ano and Ani with undulate and curved ACW; P. P. humilis, Ano and Ani with sinuate ACW; Q. P. nepalensis, Ano with sinuate ACW; R. Koengia delicatula, Ano; S. K. pilosa, Ano and Ani with sinuate ACW; T. K. islandica, Ano with sinuate ACW. Ani, anisocytic stomata; Ano, anomocytic stomata; Para, paracytic stomata; ACW, anticlinal cell walls (scale bar = 25 μm, all have same scale). Images: M.-J. Kong.
FIGURE 4 in Leaf micromorphology of the Persicaria sect. Cephalophilon (Polygonaceae) and its systematic re-evaluation
FIGURE 4. LM and SEM micrographs of trichomes on leaf surface in the studied taxa. A–D. peltate GT (glandular trichome); A. Persicaria capitata (AB); B. P. chinensis var. paradoxa (AB); C. P. runcinata var. sinensis (AB); D. P. chinensis var. ovalifolia (AB); E–F. long stalked pilate GT; E. P. stringdbergii (AD); F. P. criopolitana (AD); G–P. NGT (nonglandular trichome); G–H. stellate NGT in P. palmata (AB); I–J. multiseriate NGT; I. P. chinensis var. hispida (AD); J. P. runcinata var. runcinata (AB); K–L. uniseriate NGT; K. Koenigia islandica (AD); L. K. pilosa (AB); M–P. surface types of NGT; M. NGT with striae of P. microcephala var. wallichii (AD); N. NGT with smooth surface of P. criopolitana (AB); O. NGT with papillae of K. nepalensis (AB); P. NGT with smooth surface of K. islandica (AD). AD, adaxial side; AB, abaxial side. Images: M.-J. Kong.
FIGURE 4 in Reinstatement of Persicaria sinica Migo (Polygonaceae, Persicarieae)
FIGURE 4. Map of South China showing the locations (circles) where Persicaria sinica has been collected.
FIGURE 3 in Reinstatement of Persicaria sinica Migo (Polygonaceae, Persicarieae)
FIGURE 3. Comparative morphology between Persicaria sinica (A–H) and P. thunbergii (a–h). A, a. leaf blades; B, b. ocreae; C, c. terminals of inflorescence branches; D, d. peduncles; E, e. bracts; F, f. persistent perianth; G, g. achenes; H, h. SEM micrographs of achenes. Scale bars: A, a = 1 cm; B–G, b–g = 1 mm; H, h = 50 µm.
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