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FIGURE 10. P. nodosus a in Synopsis of Potamogetonaceae in Iran with supplements to the Flora Iranica and a new identification key

FIGURE 10. P. nodosus a. cross section of stem (Scale bar: 100 μm, objective lens 4), b. morphological shape.

FIGURE 9. P. natans a in Synopsis of Potamogetonaceae in Iran with supplements to the Flora Iranica and a new identification key

FIGURE 9. P. natans a. cross section of stem (Scale bar: 100 μm, objective lens 4), b. morphological shape. World distribution:—W Asia (Afghanistan, Pakistan, Turkey), circumpolar, boreal and temperate regions of the

FIGURE 7. P. perfoliatus a in Synopsis of Potamogetonaceae in Iran with supplements to the Flora Iranica and a new identification key

FIGURE 7. P. perfoliatus a. cross section of stem (Scale bar: 100 μm, objective lens 4), b. morphological shape.

FIGURE 5. P. trichoides a in Synopsis of Potamogetonaceae in Iran with supplements to the Flora Iranica and a new identification key

FIGURE 5. P. trichoides a. cross section of stem (Scale bar: 100 μm, objective lens 4), b. morphological shape.

FIGURE 6. P. lucens a in Synopsis of Potamogetonaceae in Iran with supplements to the Flora Iranica and a new identification key

FIGURE 6. P. lucens a. cross section of stem (Scale bar: 100 μm, objective lens 4), b. morphological shape.

FIGURE 4. P. berchtoldii a in Synopsis of Potamogetonaceae in Iran with supplements to the Flora Iranica and a new identification key

FIGURE 4. P. berchtoldii a. cross section of stem (Scale bar: 100 μm, objective lens 4), b. morphological shape.

FIGURE 2. P. pusillus a in Synopsis of Potamogetonaceae in Iran with supplements to the Flora Iranica and a new identification key

FIGURE 2. P. pusillus a. cross section of stem (Scale bar: 100 μm, objective lens 4), b. morphological shape.

FIGURE 3. P. friesii a in Synopsis of Potamogetonaceae in Iran with supplements to the Flora Iranica and a new identification key

FIGURE 3. P. friesii a. cross section of stem (Scale bar: 100 μm, objective lens 4), b. morphological shape.

FIGURE 1 in Synopsis of Potamogetonaceae in Iran with supplements to the Flora Iranica and a new identification key

FIGURE 1. Overall distribution of Iranian Potamogeton and related genera. Provinces. 1: East Azerbaijan; 2: West Azerbaijan; 3: Boushehr, 4: Chaharmal and Bakhtiari; 5: Fars; 6: Ghazvin; 7: Gilan; 8: Hamadan, 9: Isfahan; 10: Kermanshah; 11: Kerman; 12: Khorasan; 13: Khuzestan; 14: Kurdistan; 15: Lorestan; 16: Mazandaran; 17: Semnan; 18: Sistan; 19: Tehran, 20: Yazd.

FIGURE 5 in The Ulva flexuosa complex (Ulvaceae, Chlorophyta): an updated identification key with special reference to the freshwater and hyperhaline taxa

FIGURE 5. Habitats and morphology of U. flexuosa subsp. paradoxa (Voucher code: AMU-DH-U0121). A—canal with Ulva thalli on the bottom (arrow) (station No. 38), B—numerous uniseriate branches (arrows), C and D—elongated and conical apical cells (arrows) of uniseriate branches, E—cells arranged in long rows (arrow), F—stained pyrenoids (2–3 in a single cell), G—formation of zoospores in the apical part of the thallus, H—uniseriate branch with elongated and rounded apical cell (arrow), I—branch with rectangular cells (arrow). Photo credits: A–I, A.S. Rybak.

FIGURE 4 in The Ulva flexuosa complex (Ulvaceae, Chlorophyta): an updated identification key with special reference to the freshwater and hyperhaline taxa

FIGURE 4. Habitats and morphology of U. flexuosa subsp. pilifera (Voucher code: AMU-DH-U0122). A—thallus of Ulva (arrow) in the littoral zone of the Jacewo Pond (station No. 39), B—enlarged basal cells (arrows) in the apical part of the thallus, C—slightly conical and rounded apical cells (arrow) of uniseriate branches, D—cells forming a rosette (arrow) around the basal cell of branch, E—cells with 1–4 pyrenoids (arrows) in a single chromatophore, F and G—basal cells (arrows) of branches, H—rounded apical cell (arrow) of a uniseriate branch. Photo credits: A—H, A.S. Rybak.

FIGURE 3 in The Ulva flexuosa complex (Ulvaceae, Chlorophyta): an updated identification key with special reference to the freshwater and hyperhaline taxa

FIGURE 3. Examples of herbarium sheets. A—U. flexuosa subsp. pilifera (Voucher code: AMU-DH-U0004), B—U. flexuosa subsp. paradoxa (Voucher code: AMU-DH-U0121).

FIGURE 1 in The Ulva flexuosa complex (Ulvaceae, Chlorophyta): an updated identification key with special reference to the freshwater and hyperhaline taxa

FIGURE 1. Distribution of Ulva sampling locations in Poland (numbers provided are compatible with numbering of the stations in Table 2).

FIGURE 2 in The Ulva flexuosa complex (Ulvaceae, Chlorophyta): an updated identification key with special reference to the freshwater and hyperhaline taxa

FIGURE 2. Methodology of morphometric measurement. A—single thallus with apical, middle and basal-rhizoidal part (a—length of thallus, b—width of thallus), B–D—single cells (c—length of cell, d—width of cell, e—diameter of pyrenoid, f—width of cell wall), E– H—shape of chromatophores (E—flat chromatophore, F—cup-shaped chromatophore with equal edges ["U"—shaped], G—cup-shaped chromatophore with uneven edges, H—star-shaped chromatophore), I—regular pattern of cells in the thallus (in the form of short parallel rows), J—irregular pattern of the cells, K—cell arrangement around the enlarged basal cell of monoseriate branch, L—monoseriate branch, made up of 7 cells (with circular basal cell and rounded apical cell on the top of the branch), M–R—different shapes of apical cells (M—slightly rounded cell, N—conical cell, O—rounded cell with thin cell wall on the front and coarse sides, P—rounded cell with equal cell walls, R—elongated cell with a thin cell wall on the front and thicker side walls.

FIGURE 4 in Foliar architecture of some members of the tribe Senecioneae (Asteraceae) with a key for identification of the Mexican genera

FIGURE 4. Quaternary veins pattern in Senecioneae. A–Q. Random reticulate. A, Barkleyanthus salicifolius, conspicuous secretory canals (arrow); B, Digitacalia jatrophoides; C, Erechtites valerianifolia, conspicuous secretory canals (arrow); D, Nelsonianthus tapianus; E, Packera coahuilensis; F, Packera sanguisorbae; G, Pentacalia guerrerensis; H, Pippenalia delphinifolia; I, Pittocaulon praecox; J, Psacaliopsis paneroi; K, Psacalium peltigerum; L, Pseudogynoxys haenkei; M, Robinsonecio gerberifolius; N, Roldana michoacana; O, Senecio mulgediifolius; P, Telanthophora grandifolia; Q, Telanthophora liebmanii. R. Regular polygonal reticulate, Villasenoria orcuttii. Bar is 500 μm in A–C, E, G–O, R; 1mm in D, F, P, Q.

FIGURE 5 in Foliar architecture of some members of the tribe Senecioneae (Asteraceae) with a key for identification of the Mexican genera

FIGURE 5. Veinlet endings and dentate margin in Senecioneae leaves. A. Unbranched veinlet ending in unmodified tracheids, Robinsonecio gerberifolius. B. Non-ramified veinlet ending in dilated tracheids, Pentacalia parasitica. C. Once-branched veinlet ending in dilated tracheids, Pseudogynoxys haenkei. D. Conspicuous secretory canals (arrows), Pseudogynoxys chenopodioides. E. Once-branched veinlet ending in vermiform tracheids, secretory canals evident (arrows), Werneria nubigena. F–H. Teeth with tertiary venation, F, Barkleyanthus salicifolius; G, Erechtites valerianifolia; H, Telanthophora liebmanii. I–O. Teeth with quaternary venation, I, Nelsonianthus tapianus; J, Pippenalia delphinifolia; K, Psacalium purpusii; L, Pseudogynoxys haenkei; M, Senecio mulgediifolius; N, Telanthophora grandifolia; O, Villasenoria orcuttii. P–R. Teeth with fifth-order venation, P, Digitacalia jatrophoides; Q, Packera sanguisorbae; R, Roldana angulifolia. Bar is 100 μm in A–D; 500 μm in E, F, L, P, R; 1 mm in G–K, M, O, Q.

FIGURE 2 in Foliar architecture of some members of the tribe Senecioneae (Asteraceae) with a key for identification of the Mexican genera

FIGURE 2. Primary and secondary veins patterns in Senecioneae. A, Craspedodromous, Erechtites valerianifolia. B, Mixed craspedodromous, Roldana candicans. C–E, Festooned semicraspedodromous, C, Packera sanguisorbae; D, Pseudogynoxys chenopodioides; E, Senecio argutus. F, Brochidodromous, Pentacalia parasitica. G, Weak broquidodromous, Telanthophora liebmanii. H, Paralelodromous, Barkleyanthus salicifolius. I–L, Suprabasal actinodromous, I, Digitacalia crypta; J, Nelsonianthus tapianus; K, Pittocaulon praecox; L, Robinsonecio gerberifolius. M, Radiate-palmate, Psacalium peltatum. Bar is 1 cm.

FIGURE 1 in Foliar architecture of some members of the tribe Senecioneae (Asteraceae) with a key for identification of the Mexican genera

FIGURE 1. Lamina shape in Senecioneae. A–H. Elliptic. A, Barkleyanthus salicifolius; B, Erechtites valerianifolia; C, Nelsonianthus epiphyticus; D, Pentacalia venturae; E, Psacalium amplifolium; F, Robinsonecio gerberifolius; G, Roldana hartwegii; H, Senecio callosus. I–L. Ovate. I, Digitacalia jatrophoides; J, Psacalium decompositum; K, Pittocaulon praecox; L, Pseudogynoxys haenkei. M, N. Obovate. M, Villasenoria orcuttii; N, Packera bellidifolia. O–P. Oblong. O, Telanthophora andrieuxii; P, Werneria nubigena. Q, Linear, Tetradymia comosa. R–S. Circular. R, Pippenalia delphinifolia; S, Psacaliopsis paneroi. Bar is 1 cm.

FIGURE 3 in Foliar architecture of some members of the tribe Senecioneae (Asteraceae) with a key for identification of the Mexican genera

FIGURE 3. Orientation of intercostal venation in Senecioneae. A–M. Random reticulate, A, Barkleyanthus salicifolius; B, Nelsonianthus tapianus; C, Telanthophora grandifolia; D, Packera sanguisorbae; E, Pentacalia guerrerensis; F, Pippenalia delphinifolia; G, Pittocaulon praecox; H, Psacaliopsis paneroi; I, Psacalium purpusii; J, Robinsonecio gerberifolius; K, Senecio mulgediifolius; L, Telanthophora liebmanii; M, Tetradymia comosa. N, O, Opposite percurrent, Werneria nubigena. P–T, Regular polygonal reticulate, P, Digitacalia crypta; Q, Erechtites valerianifolia; R, Pseudogynoxys chenopodioides; S, Roldana candicans; T, Villasenoria orcuttii. Bar is 500 μm in A, M; 1 mm B–L, N–T.