1,720,988 research outputs found
Four new centric diatoms (Bacillariophyceae) from the Western Ghats, South India
No full textKarthick, B., Kociolek, J.P. (2011): Four new centric diatoms (Bacillariophyceae) from the Western Ghats, South India. Phytotaxa 22 (1): 25-40, DOI: 10.11646/phytotaxa.22.1.2, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.22.1.
Valve Morphology and Ultrastructure of the Enigmatic Diatom Cymbopleura semirecta (Manguin ex Kociolek & Reviers) Bahls
No full textThirouin, Kevin, Kociolek, J.P. (2023): Valve Morphology and Ultrastructure of the Enigmatic Diatom Cymbopleura semirecta (Manguin ex Kociolek & Reviers) Bahls. Phytotaxa 591 (3): 227-233, DOI: 10.11646/phytotaxa.591.3.5, URL: http://dx.doi.org/10.11646/phytotaxa.591.3.
Valve Ultrastructure and Description of a new Luticola D.G.Mann (Bacillariophyceae) species from Colorado, USA
No full textShea, Rachel, Greifenstein, Jeremy, Kociolek, J.P. (2022): Valve Ultrastructure and Description of a new Luticola D.G.Mann (Bacillariophyceae) species from Colorado, USA. Phytotaxa 554 (3): 269-277, DOI: 10.11646/phytotaxa.554.3.
FIGURES 1–14 in Valve Morphology and Ultrastructure of the Enigmatic Diatom Cymbopleura semirecta (Manguin ex Kociolek & Reviers) Bahls
No full textFIGURES 1–14. Light micrographs of Cymbopleura semirecta (Manguin ex Kociolek & Reviers) Bahls size diminution series from the Gilpin County population. Scale = 20 µm for all images.Published as part of Thirouin, Kevin & Kociolek, J.P., 2023, Valve Morphology and Ultrastructure of the Enigmatic Diatom Cymbopleura semirecta (Manguin ex Kociolek & Reviers) Bahls, pp. 227-233 in Phytotaxa 591 (3) on page 229, DOI: 10.11646/phytotaxa.591.3.5, http://zenodo.org/record/780087
FIGURES 64–69 in New and Interesting Diatoms (Bacillariophyta) from Blue Lake Warm Springs, Tooele County, Utah
No full textFIGURES 64–69. LM. Naviculonema stagnora. Valve views showing the size diminution series. Figure 67 is the holotype. Scale bar: 10 µm.Published as part of GRAEFF, C. L., KOCIOLEK, J.P. & RUSHFORTH, S.R., 2013, New and Interesting Diatoms (Bacillariophyta) from Blue Lake Warm Springs, Tooele County, Utah, pp. 1-38 in Phytotaxa 153 (1) on page 14, DOI: 10.11646/phytotaxa.153.1.1, http://zenodo.org/record/510068
FIGURES 15–18 in Valve Morphology and Ultrastructure of the Enigmatic Diatom Cymbopleura semirecta (Manguin ex Kociolek & Reviers) Bahls
No full textFIGURES 15–18. External ultrastructure of Cymbopleura semirecta (Manguin ex Kociolek & Reviers) Bahls. Fig. 15: Entire valve, showing undulate raphe branches. Fig. 16: Central area showing uniseriate, radiate striae and expanded external proximal raphe ends. Figs 17-18: External apices showing dorsally hooked distal raphe fissures and indicating a lack of apical pore fields. Scale: fig. 15 = 40 µm, fig. 16 = 10 µm, fig. 17 = 5 µm, fig. 18 = 5 µmPublished as part of Thirouin, Kevin & Kociolek, J.P., 2023, Valve Morphology and Ultrastructure of the Enigmatic Diatom Cymbopleura semirecta (Manguin ex Kociolek & Reviers) Bahls, pp. 227-233 in Phytotaxa 591 (3) on page 230, DOI: 10.11646/phytotaxa.591.3.5, http://zenodo.org/record/780087
FIGURES 12–15 in Taxonomy and valve ultrastructure of new and interesting freshwater fossil diatoms (Bacillariophyta) of Miocene age from the Espanola Formation of New Mexico, U.S.A. II. Description of a New Grunowia species with comments on the genus
No full textFIGURES 12–15. Grunowia mannii Kociolek & Danz sp. nov. SEM. Valve interior. 12–14. Entire valves, showing differences in valve shape relative to length. Large fibulae and large portules over the raphe canal are evident. 15. View of central nodule showing small, helictoglossa-like center and discontinuous raphe branch. Scale bars = 5 µm (Fig. 12), 4 µm (Fig. 13), 3 µm (Fig. 14), 1 µm (Fig. 15).Published as part of Kociolek, J.P. & Danz, A., 2022, Taxonomy and valve ultrastructure of new and interesting freshwater fossil diatoms (Bacillariophyta) of Miocene age from the Espanola Formation of New Mexico, U.S.A. II. Description of a New Grunowia species with comments on the genus, pp. 295-300 in Phytotaxa 530 (3) on page 297, DOI: 10.11646/phytotaxa.530.3.5, http://zenodo.org/record/583600
FIGURES 9–12. SEM. Cyclotella utahensis. External and girdle views. Fig. 9 in New and Interesting Diatoms (Bacillariophyta) from Blue Lake Warm Springs, Tooele County, Utah
No full textFIGURES 9–12. SEM. Cyclotella utahensis. External and girdle views. Fig. 9, Full valve view showing undulate and mottled valve face. Fig. 10, Full valve view showing external opening of the central fultoportula (white arrow). Fig. 11, Girdle view showing open girdle bands. Fig. 12, External view with nodules and external openings of the marginal fultoportulae (white arrows) and the rimoportula (black arrow). Scale bars: 1 µm.Published as part of GRAEFF, C. L., KOCIOLEK, J.P. & RUSHFORTH, S.R., 2013, New and Interesting Diatoms (Bacillariophyta) from Blue Lake Warm Springs, Tooele County, Utah, pp. 1-38 in Phytotaxa 153 (1) on page 4, DOI: 10.11646/phytotaxa.153.1.1, http://zenodo.org/record/510068
FIGURES 33–37 SEM. Williamsella angusta. Internal views showing valves from five specimens. Fig. 33 in New and Interesting Diatoms (Bacillariophyta) from Blue Lake Warm Springs, Tooele County, Utah
No full textFIGURES 33–37 SEM. Williamsella angusta. Internal views showing valves from five specimens. Fig. 33, Full valve view of a large specimen with subcapitate apices. Fig. 34, Apex showing the raised rimoportula. Fig. 35, Apex showing the linear opening of the rimoportula. Fig. 36, An apex without a rimoportula. Fig. 37, Unpaired striae and shortened striae near the valve center. Scale bars: Fig. 33: 10 µm; Figs. 34–37: 0.5 µm.Published as part of GRAEFF, C. L., KOCIOLEK, J.P. & RUSHFORTH, S.R., 2013, New and Interesting Diatoms (Bacillariophyta) from Blue Lake Warm Springs, Tooele County, Utah, pp. 1-38 in Phytotaxa 153 (1) on page 8, DOI: 10.11646/phytotaxa.153.1.1, http://zenodo.org/record/510068
FIGURES 145–150 in New and Interesting Diatoms (Bacillariophyta) from Blue Lake Warm Springs, Tooele County, Utah
No full textFIGURES 145–150. SEM. Nitzschia vitrea. External views of six specimens. Fig. 145, View of the valve face with interrupted striae. Fig. 146, Girdle view of a valve showing the prominent keel and constriction at the valve center. Fig. 147, Valve view of the apex with the raphe positioned at the top of the keel. Fig. 148, Side view of the apex showing a complete row of areolae closest to the raphe and the hyaline region along the edge of the mantle. Fig. 149, Valve center with continuous raphe. Fig. 150, Broken valve showing the areola openings narrowing on inside of the valve. Scale bars: Figs 145–146: 20 µm; Figs 147–150: 1 µm.Published as part of GRAEFF, C. L., KOCIOLEK, J.P. & RUSHFORTH, S.R., 2013, New and Interesting Diatoms (Bacillariophyta) from Blue Lake Warm Springs, Tooele County, Utah, pp. 1-38 in Phytotaxa 153 (1) on page 30, DOI: 10.11646/phytotaxa.153.1.1, http://zenodo.org/record/510068
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