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18 results for “Staurastrum”
Figs. 16-27. 16, 17. Staurastrum cosmarioides. var. cosmarioides f in O gênero Staurastrum Meyen ex Ralfs (Zygnemaphyceae, Desmidiaceae) da Área de Proteção Ambiental (APA) Litoral Norte, Bahia, Brasil
Figs. 16-27. 16, 17. Staurastrum cosmarioides. var. cosmarioides f. elevatum; 18, 19. S. crenulatum; 19. vista apical; 20, 21. S. curvimarginatum; 22- 24; S. dilatatum var. dilatatum f. dilatatum; 24. vista apical; 25, 26. S. disputatum var. extensum; 26. vista apical; 27. S. elongatum var. amazonense. Barras = 10 µm.
Figs. 2-15. Figs 2, 3 in O gênero Staurastrum Meyen ex Ralfs (Zygnemaphyceae, Desmidiaceae) da Área de Proteção Ambiental (APA) Litoral Norte, Bahia, Brasil
Figs. 2-15. Figs 2, 3. Staurastrum alternans var. alternans; 3. vista apical; 4-6. S. aureolatum var. ayayaense; 6. vista apical; 7, 8. S. boldtianum; 8. vista apical; 9, 10. S. brachiatum var. brachiatum f. brachiatum; 10. vista apical; 11. S. brebissonii var. brebissonii f. brebissonii; 12. S. capitulum var. tumidiusculum; 13, 14. S. cerastes var. pulchrum; 14. vista apical; 15. S. claviferum var. claviferum. Barras: Figs. 2-6, 9, 10, 12-14 = 10 µm; Figs. 7, 8, 11, 15 = 20 µm.
Fig. 1 in O gênero Staurastrum Meyen ex Ralfs (Zygnemaphyceae, Desmidiaceae) da Área de Proteção Ambiental (APA) Litoral Norte, Bahia, Brasil
Fig. 1. Mapa de localização do Brasil e do estado da Bahia. Em A, destaque para a Área de Proteção Ambiental Litoral Norte (Oliveira et al. 2013).
Figs. 77-94. 77, 78 in O gênero Staurastrum Meyen ex Ralfs (Zygnemaphyceae, Desmidiaceae) da Área de Proteção Ambiental (APA) Litoral Norte, Bahia, Brasil
Figs. 77-94. 77, 78. Staurastrum quadrangulare var. quadrangulare; 78. vista apical; 79, 80. S. quadrangulare var. attenuatum; 80. vista apical; 81, 82. S. quadrangulare var. sanctipaulense; 82. vista apical; 83, 84. S. quadricornutum; 84. vista apical; 85-88. S. quadrispinatum var. spicatum f. furcatum; 87, 88. vista apical; 89-91. S. rotula var. rotula; 91. vista apical; 92-94. S. setigerum var. pectinatum; 94. vista apical. Barras= 10 µm.
FIGURES –. Euastrum subalpinum (114–117), apical view (115), lateral view (116), morphological variability (117); Euastrum subalpinum var. crassum (118–121), apical view (119), lateral view (120), semicell face with wart (arrow) (121); Micrasterias laticeps var. aequilobata (122–123), morphological variability (123); Micrasterias truncata var. pusilla (124–125), median sinus, lobes and lobules – detail (125); Spondylosium pulchellum var. constrictum (126–128), apical view (127), lateral view (128); Staurastrum capitulum (129–132), apical view (130), lateral view (131), cell wall (132); Staurastrum circulare var. americanum (133–135), apical view (134), lateral view (135); Staurastrum cosmarioides (136–138), triangular apical view (137), quadrangular apical view (138); Staurastrum margaritaceum var.alpinum (139–142), apical view (140), cell wall (141), apical view and cell wall (142); Staurastrum orbiculare (143–145), apical view (144), closed basal angles (145); Staurastrum punctulatum (146–147), apical view (147); Staurodesmus controversus (148–149), apical view (149); Staurodesmus convergens (150–151), apical view (151); Staurodesmus croasdaleae (152–153), morphological variability (153). Scale bar 10 µm (114–121, 125–135, 137–151)), 50 µm (122–124, 136, 152–153). in The forgotten world of subaerial desmids (Zygnematophyceae) in the Atlantic Forest, southeast Brazil
FIGURES –. Euastrum subalpinum (114–117), apical view (115), lateral view (116), morphological variability (117); Euastrum subalpinum var. crassum (118–121), apical view (119), lateral view (120), semicell face with wart (arrow) (121); Micrasterias laticeps var. aequilobata (122–123), morphological variability (123); Micrasterias truncata var. pusilla (124–125), median sinus, lobes and lobules – detail (125); Spondylosium pulchellum var. constrictum (126–128), apical view (127), lateral view (128); Staurastrum capitulum (129–132), apical view (130), lateral view (131), cell wall (132); Staurastrum circulare var. americanum (133–135), apical view (134), lateral view (135); Staurastrum cosmarioides (136–138), triangular apical view (137), quadrangular apical view (138); Staurastrum margaritaceum var.alpinum (139–142), apical view (140), cell wall (141), apical view and cell wall (142); Staurastrum orbiculare (143–145), apical view (144), closed basal angles (145); Staurastrum punctulatum (146–147), apical view (147); Staurodesmus controversus (148–149), apical view (149); Staurodesmus convergens (150–151), apical view (151); Staurodesmus croasdaleae (152–153), morphological variability (153). Scale bar 10 µm (114–121, 125–135, 137–151)), 50 µm (122–124, 136, 152–153).
FIGURE 1. A in Staurastrum antarcticum: a new desmid species from a lake in Oasis Larsemann Hills (East Antarctica)
FIGURE 1. A) Map of Antarctica indicating the position of the sampling site in Oasis Larsemann Hills: LH-59 lake, B) Photograph of lake LH-59 (indicated by arrow), C) The sample of algobacterial mat.
FIGURE 3 in Staurastrum antarcticum: a new desmid species from a lake in Oasis Larsemann Hills (East Antarctica)
FIGURE 3. Scanning electron micrographs of four cells of Staurastrum antarcticum sp. nov., illustrating the presence of mucilage pores and mucilage plugs (indicated by arrows) on the cell wall. Scale bar = 2 µm.
FIGURE 2 in Staurastrum antarcticum: a new desmid species from a lake in Oasis Larsemann Hills (East Antarctica)
FIGURE 2. Light microscopical images of Staurastrum antarcticum sp. nov., from Oasis Larsemann Hills (Antarctica). A, C) Vegetative cells in frontal view, B, D) Vegetative cells in apical view. Scale bar = 10 µm.
FIGURES 1–8. 1. Closterium joostenii. 2. Closterium cynthiaforme. 3. Staurastrum subcomptum. 4 in Taxonomic notes on desmids from the Netherlands II, with a description of six new species
FIGURES 1–8. 1. Closterium joostenii. 2. Closterium cynthiaforme. 3. Staurastrum subcomptum. 4. Staurastrum exlooënse. 5. Cosmarium abbreviatiforme. 6. Cosmarium kouwetsii. 7. Zygospore of Cosmarium spierense with adhering gametangial cells. 8. Cosmarium spierense.
FIGURE 2, A–J in Staurastrum pantanale sp. nov. (Zygnematophyceae, Desmidiaceae), a new desmid species from the Brazilian Pantanal
FIGURE 2, A–J: Staurastrum pantanale sp. nov. A–E: LM images. A: Cell division; B: Frontal view; C: Detail of cell wall showing a crenate outline and acuminate isthmus; D: Vertical view and cell wall ornamentation detail; E: Detail of 2-furcate chloroplast toward the process apex; F–J: SEM images: F: Detail of cell wall ornamentation; G: Detail of process with 4 spines at the apex; H: Zygospore with 2–4-furcate processes; I: Zygospore formation; J: Zygospore general view. Scale bars: A–F, I–J = 10 µm; G–H = 5 µm.
FIGURE 1, A–B in Staurastrum pantanale sp. nov. (Zygnematophyceae, Desmidiaceae), a new desmid species from the Brazilian Pantanal
FIGURE 1, A–B. Pond studied, Salitrada Campo Dora: A: General view; B: Detail of submerged and floating macrophytes.
FIGURE 3, A–C in Staurastrum pantanale sp. nov. (Zygnematophyceae, Desmidiaceae), a new desmid species from the Brazilian Pantanal
FIGURE 3, A–C: Staurastrum pantanale sp. nov. A: Frontal view of the cell; B: Vertical view of the cell; C: Zygospore. Scale bars: A–C = 10 µm.
FIGURES 22–29. 22, 23. Staurastrum echinatum. 24, 25 in Taxonomic notes on Dutch desmids VI (Streptophyta, Desmidiales): new species, newly described zygospores
FIGURES 22–29. 22, 23. Staurastrum echinatum. 24, 25. Zygospore of Staurastrum echinatum. 26. Staurastrum brachiatoides. 27. Zygospore of Staurastrum brachiatoides. 28. Staurastrum brachiatum. 29. Zygospore of Staurastrum brachiatum. Scale bars = 10 µm.
Figs. 122-126. 122, 123 in O gênero Staurastrum Meyen ex Ralfs (Zygnemaphyceae, Desmidiaceae) da Área de Proteção Ambiental (APA) Litoral Norte, Bahia, Brasil
Figs. 122-126. 122, 123. Staurastrum vestitum var. subanatinum; 123. vista apical; 124-126. S. wolleanum var. kissimmense; 126. vista apical. Barras = 10 µm.
Figs. 28-44. 28-31. Staurastrum elongatum var. elongatum f in O gênero Staurastrum Meyen ex Ralfs (Zygnemaphyceae, Desmidiaceae) da Área de Proteção Ambiental (APA) Litoral Norte, Bahia, Brasil
Figs. 28-44. 28-31. Staurastrum elongatum var. elongatum f. pentagona; 30, 31. vista apical; 32. S. excavatum; 33. S. gemelliparum; 34. S. ginzbergerii var. ginzbergerii f. undulatum; 35, 36. S. gladiosum var. gladiosum f. curvispinum; 36. vista apical; 37, 38. S. hystrix var. floridense; 38. vista apical; 39, 40. S. inconspicuum. var. inconspicuum f. inconspicuum; 40. vista apical; 41. S. johnsonii var. johnsonii; 42-44. S. laeve var. laeve; 44. vista apical. Barras: Figs. 28-36, 39-44 = 10 µm; Figs. 37, 38 = 20 µm.
Figs. 45-59. 45 in O gênero Staurastrum Meyen ex Ralfs (Zygnemaphyceae, Desmidiaceae) da Área de Proteção Ambiental (APA) Litoral Norte, Bahia, Brasil
Figs. 45-59. 45. Staurastrum leptocladum var. leptocladum; 46, 47. S. longipes var. evolutum f. gracilius; 47. vista apical; 48-51. S. margaritaceum var. margaritaceum f. margaritaceum; 49, 51. vista apical; 52, 53. S. micron var. micron; 53. vista apical; 54-57. S. minnesotense var. minnesotense; 55. detalhe da bainha de mucilagem; 57. vista apical; 58-60. Staurastrum muticum var. muticum; 60. vista apical. Barras = 10 µm.
Figs. 95-121. 95, 96. Staurastrum striolatum var. striolatum f in O gênero Staurastrum Meyen ex Ralfs (Zygnemaphyceae, Desmidiaceae) da Área de Proteção Ambiental (APA) Litoral Norte, Bahia, Brasil
Figs. 95-121. 95, 96. Staurastrum striolatum var. striolatum f. brasileinse; 96. vista apical. 97, 98. S. submanfeldtii var. convergens; 98. vista apical. 99. S. submeriani; 100-102. S. subpygmaeum var. spiniferum;102. vista apical; 103, 104. S. taperinhae;103. vista apical; 105-107. S. teliferum var. groenbladii; Fig. 107. vista apical; 108, 109. S. teliferum var. pecten; 109. vista apical, 110-112. S. tentaculiferum; 112. vista apical; 113, 114. S. trihedrale var. trihedrale; 114. detalhe das pontações da parece celular; 115. S. tetracerum var. tetracerum f. tetracerum; 116. S. tetracerum var. tetracerum f. trigon; 117-119. S. trifidum var. inflexum; 119. vista apical; 120, 121. S. varians var. varians; 121. detalhe da mucilagem. Barras = 10 µm.
Figs. 61-76. 61. S. muticum var. muticum f in O gênero Staurastrum Meyen ex Ralfs (Zygnemaphyceae, Desmidiaceae) da Área de Proteção Ambiental (APA) Litoral Norte, Bahia, Brasil
Figs. 61-76. 61. S. muticum var. muticum f. minus; 62, 63. S. octoverrucosum; 64-66. S. orbiculare var. denticulatum; 66. vista apical; 67, 68. S. pinnatum var. reductum; 68. vista apical; 69, 70. S. pseudosebaldi var. unguiculatum; 70. vista apical; 71, 72. S. pseudotetracerum; 72. vista apical;73, 74. S. punctulatum var. punctulatum f. minor; 74. vista apical; 75, 76. S. pyramidatum; 76. vista apical. Barras = 10 µm.
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