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447 results for “Urtica”
FIGURE 1. U in Weeding the nettles V: Taxonomic and phylogenetic studies of the eastern Asian species Urtica thunbergiana Sieb. & Zucc. (Urticaceae)
FIGURE 1. U. thunbergiana in maximum likelihood tree based on concatenated data set (ITS, trnS–trnG, psbA–trnH and trnL–F). Bayesian posterior probabilities are indicated above branches; bootstrap support under likelihood is indicated below.
FIGURE 4 in Weeding the nettles V: Taxonomic and phylogenetic studies of the eastern Asian species Urtica thunbergiana Sieb. & Zucc. (Urticaceae)
FIGURE 4. Urtica thunbergiana subsp. silvatica: A. Habit (Boufford et al. 26323), B. Node with free stipules (Wang 70702), C. Node with fused and incised stipules (Liu 13160), D. Male inflorescences (Rushforth & McAllister 5327), E. Female inflorescence (Rushforth & McAllister 5327), F. Typical leaf (Wang 70702), G. Infructescence (Boufford et al. 30067). Scale bars: A = 5 cm; B–F = 1 cm.
FIGURE 3 in Weeding the nettles V: Taxonomic and phylogenetic studies of the eastern Asian species Urtica thunbergiana Sieb. & Zucc. (Urticaceae)
FIGURE 3. Urtica thunbergiana subsp. dentata: A. Habit (Henry 5401), B. Node with free stipules (Luo 1347), C. Female inflorescences (Boufford et al. 28908), D. Male inflorescences (Boufford et al. 28908), E. Infructescence (Luo 1347), F. Basal leaf with a cordate base, nearly as long as broad (Henry 5859), G. Apical leaf with a rounded to attenuate base, nearly three times longer than broad (Henry 5401). Scale bars: A = 5 cm; B–G = 1 cm.
FIGURE 5 in Weeding the nettles V: Taxonomic and phylogenetic studies of the eastern Asian species Urtica thunbergiana Sieb. & Zucc. (Urticaceae)
FIGURE 5. Urtica thunbergiana subsp. perserrata (A–F: Chiu et al. 02924): A. Habit, B. Node with fused and incised stipules, C. Node with fused stipules, D. Male inflorescences, E. Female inflorescence, F. Typical leaf. Scale bars: A, D = 5 cm; B–C, E-F= 1 cm.
FIGURE 1 in The two-spotted spider mite Tetranychus urticae Koch and the carmine spider mite Tetranychus cinnabarinus (Boisduval) in China mixed in their Wolbachia phylogenetic tree
FIGURE 1. The phylogenetic tree of the wsp gene sequences of Wolbachia in 18 geographical populations of T. cinnabarinus, 13 geographical populations of T. urticae in China and T. urticae (red and green forms) from other countries. The wsp gene sequences of three insects (Drosophila simulans, Aedes albopictus and Culex pipiensis) were used as out groups.
FIGURE 2. Phylogenetic relationships between T. cinnabarinus and T. urticae inferred from ITS2 in Genetic Relationship between the Carmine Spider Mite Tetranychus cinnabarinus (Boisduval) and the Two-spotted Mite T. urticae Koch in China Based on the mtDNA COI and rDNA ITS2 Sequences
FIGURE 2. Phylogenetic relationships between T. cinnabarinus and T. urticae inferred from ITS2 data of Neighbor- Joining methods. Phylogenetic tree was established by MEGA based on Kimura-2-parameter distance. Numbers on branches indicate the percentage of 100 bootstraps supporting the branching pattern shown. Two sequences of T. evansi and T. pacificus were used as outgroups.
FIGURE 1 in Genetic Relationship between the Carmine Spider Mite Tetranychus cinnabarinus (Boisduval) and the Two-spotted Mite T. urticae Koch in China Based on the mtDNA COI and rDNA ITS2 Sequences
FIGURE 1. Phylogenetic tree inferred from COI sequences of various samples of T. urticae and T. cinnabarinus. The Neighbor-Joining (NJ) method was used based on distances calculated using Kimura-2-parameter correction method. Numbers on branches indicate the percentage of 100 bootstraps supporting the branching pattern shown. The species Petrobia harti and Bryobia kissophila were used as outgroups. Mite colouration for each sample is indicated in brackets: (R) means red form of T. urticae; (G) means green form of T. urticae.
Demography of Tetranychus urticae (Acari: Tetranychidae) on Phaseolus vulgaris (Fabales: Fabaceae) under Different Nitrogen Fertilization Regimes with Estimations of Confidence Intervals
<p>The life table raw data and output files:</p> <p>In order to study the effect of nitrogen fertilization on the population growth rate of two-spotted spider mite, <em>Tetranychus urticae</em> Koch (Acari: Tetranychidae), life table data on common bean were collected. Bean plants were treated with four nitrogen levels (0, 75, 150, and 225 kg N ha<sup>-1</sup>). Data were analyzed based on the age-stage, two-sex life table program.</p>
FIGURE 5 in Weeding the Nettles II: A delimitation of "Urtica dioica L." (Urticaceae) based on morphological and molecular data, including a rehabilitation of Urtica gracilis Ait.
FIGURE 5. Urtica gracilis subsp. incaica: (All from Schwarzer 14), A. Habit of young plant with predominantly male inflorescences, B. Ovate leaves of a young shoot (compare F), note the reddish flushed abaxial surface (left), C. Stem covered with setae with long, asymmetrically curved pluricellular base and numerous simple trichomes, D. Node densely covered with numerous setae, E. Achene, F. Rhizome with young shoots, G. Nodes with leaf pairs and female inflorescences (left) and male inflorescences (right).
FIGURE 1 in Weeding the Nettles II: A delimitation of "Urtica dioica L." (Urticaceae) based on morphological and molecular data, including a rehabilitation of Urtica gracilis Ait.
FIGURE 1. Maximum likelihood tree based on the concatenated data set (ITS, trnL-F, trnS-trnG, psbA-trnH). Bayesian posterior probabilities are indicated above branches, while bootstrap support is indicated below. The first value (bold) refers to the bootstrap support under likelihood, and the second (italics) to the parsimony analysis.
FIGURE 4 in Weeding the Nettles II: A delimitation of "Urtica dioica L." (Urticaceae) based on morphological and molecular data, including a rehabilitation of Urtica gracilis Ait.
FIGURE 4. Urtica gracilis subsp. aquatica: (A, C, F: Schneider s.n., all others: Weigend 7478), A. Habit with mature inflorescences of both sexes, B. Node with mixed inflorescence, male flowers already shed, female branches with mature fruits, C. Young shoot with immature inflorescences, D. Node (section) with leaf pair with adaxial surface (above) and abaxial surface (below) and male inflorescences, E. Achene, F. Node of Schneider s.n. with narrower leaves and female inflorescenes, G. Stinging hair with long, curved pluricellular base.
FIGURE 3 in Weeding the Nettles II: A delimitation of "Urtica dioica L." (Urticaceae) based on morphological and molecular data, including a rehabilitation of Urtica gracilis Ait.
FIGURE 3. Urtica gracilis subsp. holosericea: (all Ahartt 13535), A. Habit with mixed/male inflorescences in the middle (left) and female inflorescences in the distal parts (right) of the shoot, B. Stem with countless simple trichomes and few erect stinging hairs, C. Mature fruit, D. Node (section) with leaf pair, adaxially, E. Node with leaf pair lateral/abaxial view.
FIGURE 2 in Weeding the Nettles II: A delimitation of "Urtica dioica L." (Urticaceae) based on morphological and molecular data, including a rehabilitation of Urtica gracilis Ait.
FIGURE 2. Urtica gracilis subsp. gracilis: (A–D, G: Weigend 9332), A. Habit, B. Node with stipules, C. Stem with scattered simple trichomes and few setae, D–E. Leaf shape variability, D. Narrow leaf pair from Weigend 9332, E. Broader leaves from Liston 1223, F. Ovate achene of U. dioica subsp. dioica for comparative purposes (Weigend 8102), G. Achene of U. gracilis subsp. gracilis.
FIGURE 6 in Weeding the Nettles II: A delimitation of "Urtica dioica L." (Urticaceae) based on morphological and molecular data, including a rehabilitation of Urtica gracilis Ait.
FIGURE 6. Urtica gracilis subsp. mollis: (D: Ricardi et al. 720, all others: Weigend 9356), A. Habit with mixed inflorescences below and female inflorescence above, B. Node (section) with leaf pair, C. Node from the lower part of the shoot with male flowers, D. Achene from Ricardi et al. 720, E. Stem with numerous long setae and simple trichomes, F. Achene from Weigend 9356.
FIGURE 3 in Population Growth Parameters Of The Two-Spotted Spider Mite, Tetranychus Urticae, On Three Peach Varieties In Iran
FIGURE 3: Daily fecundity curves (eggs/female/day) of T. urticae on three peach varieties.
FIGURE 19 in Evidence For Synonymy Between Tetranychus Urticae And Tetranychus Cinnabarinus (Acari, Prostigmata, Tetranychidae): Review And New Data
FIGURE 19: Dorsal lobe aspect observed on F20-30 hybrid female of Tetranychus urticae.
FIGURE 9 in Evidence For Synonymy Between Tetranychus Urticae And Tetranychus Cinnabarinus (Acari, Prostigmata, Tetranychidae): Review And New Data
FIGURE 9: GF females of Tetranychus urticae with an additional pair of spots in the caudal area.
Figure 3 in The Roman snail (Gastropoda: Helicidae) is not a generalist herbivore, but shows food preferences for Urtica dioica and plant litter
Figure 3. Relationship between the average width (a and c) and height (b and d) of Helix pomatia shells per subpopulation independent of the sample date (), and for individual sample dates (●), and the average proportion of individuals feeding on (a, b) Urtica dioica, or (c, d) plant litter.
Figure 2 in The Roman snail (Gastropoda: Helicidae) is not a generalist herbivore, but shows food preferences for Urtica dioica and plant litter
Figure 2. Relationship between the average feeding height of Helix pomatia in the vegetation per subpopulation, independent of the sample date () or for individual sample dates (●), and the average proportion of individuals feeding on (a) Urtica dioica or (b) plant litter.
Figure 1 in The Roman snail (Gastropoda: Helicidae) is not a generalist herbivore, but shows food preferences for Urtica dioica and plant litter
Figure 1. Distance-based redundancy analysis db (RDA) plot showing the resemblance between Helix pomatia subpopulations based on the average diet composition of snails in different subpopulations and at different dates. Subpopulations 1–8 are indicated by different colours and symbols. Vectors are fitted for the predictor variables selected in the distance-based linear model (black: Hgt.shl, average shell height, Hgt.veg, average feeding heigh; Wdt.shl, average width of shells; Smp.day, sample day). Diet resources (in red, with: Urt.dio, Urtica dioica; litter, plant litter) with multiple correlation coefficients> 0.3 are superimposed.
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