"Spores - many seen
KOH 5.5-6.8 x 1.7-28
Pores - 4.5 per mm"
Could not identify the second word of the second line, but it looks like it may begin with "hyal"; sorry!
"hyaline in KOH" - meaning it becomes translucent when treated with potassium hydroxide, a strong base.
Oh wow! I learned a little extra today, thanks 😃