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16-01-2026 00:45

Ethan Crenson

Hi all, On decorticated hardwood from a New York

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

13-01-2026 07:28

Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

15-01-2026 15:55

Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

15-01-2026 10:35

Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

13-01-2026 08:43

Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

07-01-2026 22:22

Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

13-01-2026 09:10

Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

13-01-2026 10:13

Danny Newman Danny Newman

Cordieritidaceae sp. on indet. wood w/ Hypoxylon s

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Terminology?
Viktorie Halasu, 10-10-2018 23:11
Viktorie HalasuHello forum,

I would like to ask how to call correctly a preparate that wasn't cut radially, from margin to centre, but on the secant - a thin section of the surface layer. It has its use e.g. in Scutellinia where you get bigger sample of the hairs and yet the section is thin enough to clearly see the hair roots (if you place it hairs down). Unlike "radius - radial", there doesn't seem to be an adjective from "secant", only adverb. I'm looking for something short to use in image descriptions, like "radial section" vs. "xxxx section". Would "secant section" make any sense to you, or is it a nonsense in english? 

Thank you in advance for any help. 
Viktorie
Stip Helleman, 10-10-2018 23:33
Stip Helleman
Re : Terminology?
Hi Viktorie,

I would use the term "parallel (to / with) the surface" for such a section

regards,

Stip
Chris Yeates, 12-10-2018 03:01
Chris Yeates
Re : Terminology?
Stip's is a good suggestion. I think "tangential section" would also cover what you are intending.

Chris
Viktorie Halasu, 13-10-2018 13:02
Viktorie Halasu
Re : Terminology?
Thank you both.
"Tangential section" is what I've been actually using in my notes, but it's not correct (it's a secant, not tangent). But if nothing better appears, I'll probably use one of your suggestions.

Viktorie 
Martin Bemmann, 13-10-2018 20:33
Martin Bemmann
Re : Terminology?
Hi Viktorie,

I would follow the terminology used also in wood sections. In your case it would be tangential, even if it is in fact a secant in geometry. It describes the direction only of the cut. See this examples:



(cross section = transverse section)

Best regards

Martin
Viktorie Halasu, 13-10-2018 21:15
Viktorie Halasu
Re : Terminology?
Hello Martin,
oh of course, I forgot about wood sectioning, that's a good terminological precedent.
Thank you.
Viktorie