Observation 107327: Parmotrema subisidiosum (Müll. Arg.) Hale
When: 2009-10-30
Herbarium specimen reported

Notes: HABITAT dry hardwood forest on south-facing slopes of cove; SUBSTRATE Kalmia bark; ASPECT mostly open; NOTES nice specimen on mountain laurel limb between TT and clearcut; THALLUS relatively appressed, yellowish-green to whitish (but not usnic see spot tests), finely reticulate-cracked (conspicuous), fringed with cylindrical isidia sometimes on tiny lobules, short black isidia abundant and occasionally on various parts of lobules and isidia but rarely from tips of isidia, black below, K+y, C-, KC-; MEDULLA white, K+ yellow slowly dark red, C-, KC-.

Images

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20091030-16.jpg
Upper surface, at 10×.
255592
20091030-17.jpg
Isidia and lobules along margin, at 30×.
255593
20091030-18.jpg
Young reticulate cracks and maculae, at 30×.
255594
20091030-19.jpg
Lower surface, at 30×.
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20091030-20.jpg
A few isidia on upper surface, at 30×.
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20091030-21.jpg
Older reticulate cracks and maculae, at 30×.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2012-08-27 17:33:49 PDT (-0700)
Last modified: 2012-08-27 17:33:52 PDT (-0700)
Viewed: 22 times, last viewed: 2016-07-06 01:27:35 PDT (-0700)
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