File:2015-08-10 Collemopsidium foveolatum (A.L. Sm.) F. Mohr 545932.jpg
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Description2015-08-10 Collemopsidium foveolatum (A.L. Sm.) F. Mohr 545932.jpg |
Collemopsidium foveolatum (A.L. Sm.) F. Mohr Image location: Lourinhã, Portugal This observation refers to the lichen growing on barnacles that is noticed as black dots over the shell. Following the key in the reference one arrives to the pair of species C. foveolatum and C. sublitorale. They mainly differ by the size of perithecia, though overlaping (0.1-0.2 mm for the former and 0.15 – 0.5 mm for the latter). I estimate that the size of perithecia (involucrellum included) is consistently less than 0.2 mm, which makes C. foveolatum a good choice. I will try to make the microscopy, though the dimensions for the spores of the two species are also similar. Used references: British Flora
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This file, which was originally posted to
https://mushroomobserver.org/image/show_image/545932, was reviewed on 15 May 2018 by reviewer Leoboudv, who confirmed that it was available there under the stated license on that date.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:39, 15 May 2018 | 2,933 × 2,200 (1.84 MB) | Josef Papi (talk | contribs) | =={{int:filedesc}}== {{Information |Description='''''Collemopsidium foveolatum''''' (A.L. Sm.) F. Mohr Image location: Lourinhã, Portugal This observation refers to the lichen growing on barnacles that is noticed as black dots over the shell. Following the key in the reference one arrives to the pair of species [http://mushroomobserver.org/observer/lookup_name/Collemopsidium+foveolatum ''C. foveolatum''] and [http://mushroomobserver.org/observer/lookup_name/Collemopsidium+sublitorale ''C. ... |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | PENTAX RICOH IMAGING |
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Camera model | PENTAX WG-3 GPS |
Exposure time | 1/50 sec (0.02) |
F-number | f/3.1 |
ISO speed rating | 125 |
Date and time of data generation | 15:06, 10 August 2015 |
Lens focal length | 5.5 mm |
Orientation | Normal |
Software used | Microsoft Windows Photo Viewer 6.3.9600.17415 |
File change date and time | 01:34, 12 August 2015 |
Y and C positioning | Co-sited |
Exif version | 2.3 |
Date and time of digitizing | 15:06, 10 August 2015 |
Meaning of each component |
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APEX exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 31 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Macro |
Receiver status | Measurement interoperability |
Direction of image | 84.8 |
GPS tag version | 2.3.0.0 |