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abril 25, 2024
07:06 AM AKDT
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@roman_romanov
Perhaps you recognize this one in a tiny freshwater stream
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abril 25, 2024
02:49 AM PDT
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abril 25, 2024
12:52 AM UTC
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abril 24, 2024
09:20 PM CDT
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underwater in fresh water
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abril 24, 2024
08:17 PM EDT
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abril 24, 2024
10:21 PM CST
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abril 24, 2024
02:26 PM EDT
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abril 24, 2024
12:59 PM EDT
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abril 24, 2024
02:52 PM UTC
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abril 24, 2024
04:13 PM CEST
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abril 24, 2024
10:58 AM EDT
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Violet-black cells in gelatinous sheaths at the surface of a layer of gelatinous cyanobacteria, growing on a lost sock in the mud of a flooded abandoned limestone quarry. I'm not certain that these photos are all of the same organism - some are dark violet and some are more strongly just black. The violet capsule absorbs so much light that it is difficult to induce autofluorescence in the chlorophyll of the cell inside. The first picture shows the violet layer beside some Trentepohlia. The various pictures demonstrate the colours in contrast to some of the other species present (Hassallia, Trentepohlia). Cells themselves are 3-6 µm and the capsules are 6-12 µm. The surface violet-black layer covers a deep layer of gelatinous cells inside lamellated mucilaginous sheaths, of different generations, that I now think are another species entirely.
Part of a gelatinous community: https://inaturalist.ca/observations/208411876.
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abril 23, 2024
11:21 PM UTC
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abril 16, 2024
05:34 PM UTC
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This had a really strange slimy and gelatinous texture. It was firm and gummy and did not fall apart when I picked some. Growing in a slow and shaded portion of a small stream
@roman_romanov
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abril 23, 2024
10:38 PM EDT
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abril 24, 2024
01:57 AM EDT
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abril 24, 2024
04:25 PM +07
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agosto 14, 2023
08:24 AM UTC
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abril 24, 2024
06:20 PM CST
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abril 24, 2024
12:09 PM UTC
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abril 23, 2024
12:51 PM CDT
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abril 22, 2024
11:22 PM PDT
Lugar
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abril 23, 2024
08:41 AM BST
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abril 23, 2024
10:51 AM UTC
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abril 23, 2024
03:19 PM MSK
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abril 23, 2024
01:55 PM UTC
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abril 23, 2024
04:13 PM CEST
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abril 23, 2024
03:48 AM UTC
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abril 22, 2024
10:10 PM CDT
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abril 20, 2024
10:17 PM PDT
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Klebsormidium? Parietal bands. In river water-- codominant in large goopy tufts
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abril 21, 2024
07:25 PM UTC
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abril 22, 2024
07:44 PM EDT
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Black Bear Wilderness Area, Seminole County, FL, April 2024. Bioiblitz.
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abril 15, 2023
07:01 PM PDT
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abril 29, 2023
08:53 PM CEST
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abril 2, 2024
07:28 PM UTC
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abril 7, 2024
08:13 PM UTC
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abril 20, 2024
01:16 AM EDT
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abril 22, 2024
12:38 PM CDT
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abril 22, 2024
08:26 PM CEST
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abril 22, 2024
10:19 AM CEST
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abril 22, 2024
11:19 AM CDT
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abril 21, 2024
08:06 PM CDT
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abril 21, 2024
10:56 PM EDT
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abril 22, 2024
09:24 AM CEST
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abril 21, 2024
03:42 PM UTC
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abril 21, 2024
03:53 PM UTC
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abril 21, 2024
05:16 PM UTC
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abril 21, 2024
08:42 AM HST
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abril 21, 2024
08:06 PM UTC
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abril 21, 2024
08:10 PM UTC
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abril 22, 2024
08:18 AM NZST
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On damp sand in shaded area, left out of water by receding lake level
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abril 21, 2024
08:51 PM UTC
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abril 21, 2024
02:04 PM MST
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abril 21, 2024
09:08 PM CEST
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abril 21, 2024
09:36 PM UTC
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abril 21, 2024
09:58 PM UTC
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abril 21, 2024
07:16 PM -03
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abril 21, 2024
03:49 PM EDT
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abril 21, 2024
10:31 AM EDT
Descrição
Cryptomonas (Chilomonas) paramecium Ehrenberg 1832. A bloom from the acidic freshwater kettle pond Chatfield's Hole fed with boiled wheat seeds. Imaged in Nomarski DIC on Olympus BH2S using SPlan 100 1.25 oil objective plus variable phone cropping on Samsung Galaxy S9+. As Jara Kubin points out, the correct name after molecular analyses is Cryptomonas paramecium, the species is a regular member of the genus, but without chlorophyll.
Hoef-Emden, K. & Melkonian, M. (2003). Revision of the genus Cryptomonas (Cryptophyceae): a combination of molecular phylogeny and morphology provides insights into a long-hidden dimorphism. Protist 154: 371-409
Genus: Similar to Cryptomonas in general body form and structure, but colorless; without pyrenoid; "cytopharynx" (gullet) deep, lower half surrounded by granules (ejectisome/trichocyst); one contractile vacuole anterior (Kudo, 1966). Chilomonas does not have chromatophores (pigment-containing structures) and lives by ingesting organic matter.
Species: 20-40 μm long. Posteriorly narrowed; slightly bent 'dorsally'; 30-40 μm long, 10-15 μm wide; widely distributed in stagnant water (Kudo, 1966).
Free-swimming, biflagellate monads, generally obovoid often with a recurved posterior sometimes produced to acutely pointed; not known to produce palmelloid colonies. A longitudinal furrow extends posteriorly from the vestibulum and transforms into a sack-like gullet lined with many rows of ejectosomes. With a single nucleomorph but lacking a chloroplast and pyrenoid; with a prolific accumulation of peripheral starch granules. Periplast with a laminate inner component and a superficial layer of fine fibrillar material. Sexual reproduction is unknown; reproduction being through simple cell division. Cyst formation is unknown.
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abril 21, 2024
08:26 AM UTC
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abril 21, 2024
10:36 AM UTC
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abril 21, 2024
11:58 AM UTC
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abril 21, 2024
02:17 PM BST
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abril 20, 2024
11:12 PM EDT
Descrição
Part of a mixed community of cyanobacteria and lichens that have colonized a sock, embedded in the mud of a flooded abandoned quarry. The filaments of Scytonema are embedded in thick yellow sheaths, 12 to 20 microns wide. The epifluorescence photos reveal the form of the filaments within the sheaths.
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abril 20, 2024
08:59 PM CDT
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abril 20, 2024
06:11 PM CEST
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abril 20, 2024
04:21 PM UTC
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abril 20, 2024
07:51 PM CEST
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abril 20, 2024
01:10 PM CEST
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abril 20, 2024
02:45 PM CEST
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abril 20, 2024
02:20 AM UTC
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abril 19, 2024
10:21 PM EDT
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abril 19, 2024
11:07 PM EDT
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abril 19, 2024
10:59 PM CDT
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abril 19, 2024
03:27 PM CDT
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abril 19, 2024
10:04 PM CEST
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abril 19, 2024
10:32 PM UTC
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abril 20, 2024
01:14 AM CEST
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abril 20, 2024
01:14 AM CEST
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abril 19, 2024
07:10 PM EEST
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abril 19, 2024
04:45 PM UTC
Descrição
Gorgeous, and just as mucilaginous and slimy as the last Batrachosperm I posted. Somewhat less firm, though. And greener.
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abril 19, 2024
04:54 PM UTC
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abril 19, 2024
10:55 AM PDT
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abril 18, 2024
07:15 PM EDT
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abril 19, 2024
12:20 PM AEST
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abril 18, 2024
08:15 PM PDT
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abril 17, 2024
10:23 AM UTC
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abril 19, 2024
09:43 AM UTC
Descrição
In one image can be seen a faint flagellum
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abril 17, 2024
11:17 PM EDT
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abril 17, 2024
08:13 PM UTC
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abril 18, 2024
12:15 AM MSK
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abril 18, 2024
12:15 AM MSK
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abril 17, 2024
09:32 PM UTC
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abril 17, 2024
01:23 PM PDT
Descrição
Cyano? Algae? Lichen? Aquatic-- affixed to river rock forming tubes
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abril 17, 2024
08:54 PM CEST
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abril 16, 2024
05:53 PM UTC
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abril 17, 2024
10:18 AM CST
Descrição
Podemos observar que esta especie tiene Talos filamentosos erectos ramificados.
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abril 17, 2024
03:28 PM UTC
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abril 17, 2024
03:07 PM UTC
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abril 17, 2024
08:56 AM EDT
Descrição
Dense mats in roadside drainage ditch
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abril 16, 2024
11:34 PM UTC