spore print, spore printing, spore deposit
Referring to mass of spores deposited on some nearby surface
Spore printing can be either naturally occurring or artificially reproduced in most mushrooms.
The spores either drop from the mushroom's spore bearing surface, or are discharged forcibly.
This photo shows a naturally occurring spore print, that is,
a whitish spore deposit on a few of the lower positioned mushroom caps in this group of honey mushrooms.
This photo shows a purplish spore print ( on right side ) after the previously inverted cap has been lifted away.
Artificially producing a spore print provides a means of determining spore color, which very often is a very important step in identifying a mushroom.
This photo shows a whitish spore print from a Laccaria ochropurpurpea ( a very 'purple' gilled mushroom ).
Producing a spore print provides a means of determining spore color which often is surprisingly different than the color one would have expected beforehand.