File:Lactarius petersenii Hesler & A.H. Sm 538128.jpg
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DescriptionLactarius petersenii Hesler & A.H. Sm 538128.jpg |
Lactarius petersenii Hesler & A.H. Sm. Image location: Franklin Parker Preserve, Chatsworth, New Jersey, USA > A scattered group of several fruiting bodies growing in the middle of the blue-blaze trail in mixed woods (pitch pine and oak) of the Speedwell section of FPP. > Injured gills instantly oozed copious pinkish-brown latex; the latex eventually stained the gills brown upon drying. > Odor not entirely unpleasant, but sharp and rather acrid. > Keyed out well and matched the description and pix in the milkcap book. > The wording in the books suggests hemlock as the symbiont, but there surely no hemlock in the NJ Pine Barrens! Microscopy: Amyloid in Melzer’s; [20/1/1/]: L x W = 8.6-10.5 (-11.2) x (6.7-) 7.0-9.3 (-9.8) μm; L x W = 9.5 × 7.7 μm; Q = (1.12-) 1.13-1.33; subglobose (3 spores) to broadly ellipsoid to low range ellipsoid (17 spores); Q = 1.23 Used references: Milk Mushrooms of North America by A.E. Bessette, D.B. Harris and A.R. Bessette
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This file, which was originally posted to
https://mushroomobserver.org/image/show_image/538128, was reviewed on 25 April 2018 by reviewer MB298, 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 | 08:03, 24 April 2018 | 4,320 × 3,240 (4.72 MB) | Leoboudv (talk | contribs) | =={{int:filedesc}}== {{Information |Description='''''Lactarius petersenii''''' Hesler & A.H. Sm. Image location: Franklin Parker Preserve, Chatsworth, New Jersey, USA > A scattered group of several fruiting bodies growing in the middle of the blue-blaze trail in mixed woods (pitch pine and oak) of the Speedwell section of <span class="caps">FPP</span>. > Injured gills instantly oozed copious pinkish-brown latex; the latex eventually stained the gills brown upon drying. > Odor not... |
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Camera manufacturer | Panasonic |
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Camera model | DMC-FH2 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/3.1 |
ISO speed rating | 250 |
Date and time of data generation | 17:05, 13 July 2015 |
Lens focal length | 5 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Ver.1.0 |
File change date and time | 17:05, 13 July 2015 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 17:05, 13 July 2015 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 3.265625 APEX (f/3.1) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 28 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |