Observation 15263: Armillaria mellea (Vahl) P. Kumm.
When: 2008-09-18
No herbarium specimen

Notes: Piney Point, 35°12’48.33"N 85°54’14.26"W, el. 524 m

Images

31800
31801
31802
31803
110547
scale bar experimental apparatus
110557
length of a 1cm scale bar in pixels vs. distance from the camera’s sensor to the target, for this camera (images come out of the camera at 3888 pixels wide)
110562
ExifTool Focal Distance vs. measured distance
110565
result: 80cm photo with scale bar 274 pixels long
110585
Plot cm / pixel, instead of pixels / cm. One can probably find some similar triangles and simple geometry lurking here.
110840
110878
scale bar produced by Jason’s script!

Proposed Names

7% (2)
Recognized by sight

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
No one has commented yet.

Created: 2008-12-11 22:50:27 PST (-0800)
Last modified: 2010-10-09 12:26:40 PDT (-0700)
Viewed: 79 times, last viewed: 2016-03-20 23:18:08 PDT (-0700)
Show Log