Observation 204636: Amandinea punctata (Hoffm.) Coppins & Scheid.

When: 2015-05-13

Collection location: Petenwell Rock, Wisconsin, USA [Click for map]

Who: Andrew Khitsun (Andrew)

Specimen available


Copyright © 2015 Jason Hollinger (jason)
Copyright © 2015 Jason Hollinger (jason)
Copyright © 2016 Jason Hollinger (jason)

Proposed Names

29% (1)
Recognized by sight
79% (3)
Based on microscopic features: spores ~10×5µm, paraphyses strongly capitate, hymenium clear
Based on chemical features: K-

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I changed the name to A.punctata to be in line with CNALH
By: Andrew Khitsun (Andrew)
2018-02-18 13:53:31 AEDT (+1100)
Did you? :)
By: Jason Hollinger (jason)
2016-01-12 13:03:21 AEDT (+1100)

Those two terms, paraplectenchymatous and prosoplectenchymatous, remind me of studying Russian in school — I had to say words like преподавательница (teacher) over and over for days before I could say them naturally! Unfortunately, these two terms don’t have equally simple bisyllabic translations. They refer to the cellular structure of some tissue, often the upper or lower cortex. Paraplect. means made of roundish or squarish or ploygonal (isodiametric) cells. Prosoplect. means made of elongate cells, either parallel or intricately tangled, dense or loose. In this case Pleopsidium is defined first by a vaguely K/I+ ascus stain, and secondarily by a prosoplect. upper cortex. Some Acarospora have the same sort of cortex, but most have a paraplect. cortex. In this case the cells were perfectly round, couldn’t have been more obvious. (I got a lucky section.) Yes, maybe it’s a silly character, but it is very consistent and taxonomically useful, rarely ambiguous. It may even have macroscopic consequences having to do with strength or flexibility or absorbent properties of the cortex, not sure.

When you write “paraplectenchymatous”, do you copy from somewhere and paste? :)
By: Andrew Khitsun (Andrew)
2016-01-12 12:15:46 AEDT (+1100)

I entered the darn word into Google search and didn’t come up with anything meaningful :(

Easterners like Amandinea, westerners Buellia
By: Jason Hollinger (jason)
2016-01-11 17:30:48 AEDT (+1100)

Also, might be worth noting that the yellow thing has a very distinctly paraplectenchymatous upper cortex, making it Acarospora not Pleopsidium.

Something to note, perhaps: the ones that are coming out as Acarospora have very indistinct or irregular apothecia dwarfed by the areoles; whereas Pleopsidium – at least well-developed specimens – have nicely rounded apothecia generally larger than or dominating the surrounding areoles.

I see that B.punctata also exists on MO in its other incarnation: Amandinea puncata
By: Andrew Khitsun (Andrew)
2016-01-11 02:14:11 AEDT (+1100)

Which one is current name? (don’t bother answering – by the time you post it they will move it into different group :)

Created: 2015-05-21 11:19:41 AEST (+1000)
Last modified: 2018-02-18 13:53:32 AEDT (+1100)
Viewed: 150 times, last viewed: 2018-05-01 08:05:58 AEST (+1000)
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