. Bulletin de la Socit botanique de Genve. Plants; Plants -- Switzerland. Aa Fig. 87. Fig. -88. 52. Cosmarium quadratum Ralfs forma H7//t>/ West. Long. 53,5-65 |j. : lat. 35-39 |x; lat. isth. 22-27 p/. I-V. 53. Cosmarium De Baryi Arch. Long. 95-100 jx; lai. 47-52 ^; lai. isth. 37-39 [x. l-ll-Ill-IV. 54. Cosmarium impressulum Elfv. Long. 30 ix; lai. 25; lat. isth. 10 < [-II. 55. Cosmarium Regnellii Wille forma minima Viret. Exemplaires semblables à ceux du Grimsel. 56. Cosmarium hrre Babenh. Long. 22 [x; lat. 16; lat. isth. 7,5 |x. 1. 57. Cosmarium difficile, Liitkenhiller, Desmid. Alt
. Bulletin de la Socit botanique de Genve. Plants; Plants -- Switzerland. Aa Fig. 87. Fig. -88. 52. Cosmarium quadratum Ralfs forma H7//t>/ West. Long. 53,5-65 |j. : lat. 35-39 |x; lat. isth. 22-27 p/. I-V. 53. Cosmarium De Baryi Arch. Long. 95-100 jx; lai. 47-52 ^; lai. isth. 37-39 [x. l-ll-Ill-IV. 54. Cosmarium impressulum Elfv. Long. 30 ix; lai. 25; lat. isth. 10 < [-II. 55. Cosmarium Regnellii Wille forma minima Viret. Exemplaires semblables à ceux du Grimsel. 56. Cosmarium hrre Babenh. Long. 22 [x; lat. 16; lat. isth. 7,5 |x. 1. 57. Cosmarium difficile, Liitkenhiller, Desmid. Altersees, 1893, p. 551, pi. VIII, fig. 3; West, Brit. Desmid., III, p. (.)6-(J7, pi. LXXIII, iig. 2. (Fig. 88.) Lutkemùlleb, en donnant à ce Cosmarium le qualifi- catif de «difficile», a certainement été très heureux dans son Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Socit botanique de Genve. Genve, [Switzerland] : Socit botanique de Genve
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