Gill Attachment — types/ symbol meaning
Adnate
Adnate gills are broadly attached to the stipe.
Adnexed
Adnexed gills diminish before being narrowly attached to the stipe.
Decurrent
Decurrent gills run down the stipe below the level of the main part of the gills.
Free
Free gills are not attached to the stipe.
None
Some forms of mushrooms or other fungi do not have gills. These can include mushrooms with pores instead of gills, or fungi with a spore-bearing outer surface, or internal spore mass.
Sinuate
Sinuate gills become suddenly become narrower before being attached to the stipe.
Sinuate decurrent
Sinuate decurrent gills are similar to sinuate gills, except that they then curve down the stipe where they attach.