I recommend getting as many of these as soon as you can! It's also good to collect them in bulk along with their spores to avoid having to revisit areas or recreate the conditions - place down about three or four cultivators in an ideal spot, use some basic compost and linger around. A humidifer, dehydrator, cooler and heater will all be needed to manipulate the environment and meet conditions for each mushroom.

Waking Mushrooms
Stout Funnel - Amplitude +1
Water | Balmy | Drenched | Rain

Flat Stinkhorn - Nobility +1, Odour +1
Grass | Balmy | Normal | Clear

Bothersome Fungus - Umbrage +1, Edacity +1
Mud | Warm | Damp | Clear

Withering Rot - Amplitude -1, Saturation -1
Mud | Chilly | Damp | Clear

Shrinking Cap - Amplitude -1, Odour -1
Stagnant Water | Balmy | Damp | Clear

Pickled Bonnet - Amplitude +1, Saturation +1
Indoors | Mild | Parched | Clear

Raucous Conecap - Odour +1, Ribbit +1
Water | Balmy | Waterlogged | Rain

Grubby Parachute - Nobility -1
Mud | Warm | Wet | Clear

Frosty Jack - Umbrage -1, Edacity +1
Water | Hot | Wet | Clear

Filling Oyster - Edacity -1
Grass | Frozen | Normal | Rain (Snow))

Bulbous Muffler - Ribbit -1
Mud | Cold | Damp | Rain (Snow)


Dream Mushrooms
Squat Amplifier - Nobility x2, Umbrage x2
In mud, balmy, wet, during rain

Towering Expander - Amplitude x2
On grass, warm, normal, no rain

Fool's Mirror - Amplitude x-1, Nobility x-1
In water, chilly, wet, no rain

Bloating Mould - Suppresses Odour, Saturation x2
Indoors, mild, dry, no rain

Stinking Bolete - Suppresses Nobility, Odour Modifier x2
In stagnant water, warm, damp, no rain

Pointed Deceiver - Suppresses amplitude, Saturation x-1
Indoors, mild, normal, no rain

Chattering Bell - Odour x-1, Ribbit x2
On grass, chilly, damp, during rain

False Suppressor - Suppresses Umbrage, Edacity x2
Indoors, chilly, dry, no rain

Velvet Inverter - Ribbit x-1, Edacity x-1
On grass, hot, normal, no rain

Rude Awakening - Minimises Nobility
On grass, hot, damp, in rain

Torrential Prune - Minimises amplitude, maximises saturation
In mud, mild, normal, no rain

Booming Mane - Maximises Odour and Ribbit
In water, mild, damp, no rain

Chill Pill - Minimises Umbrage
Indoors, Chilly, Normal, | Clear

Waking Critters
Dracofly - Salty
Reeds | Daytime | Rain

Speckled Empress - Sweet
Red Lilies | Daytime | Clear

Marshfly - Salty
Lilypads | Dawn | Clear

Pondskater - Bitter
Millipads | Dusk | Clear

Pink Dasher - Sweet
Mahopany Trees | Dawn | Clear

Bush Cricket - Salty
Marsh Shrub | Night | Clear

Orchard Bee - Spicy
Beehives | Day | Clear

Radiant Skipper - Sour
Azure Hearts | Night | Clear

Seven-spotted Lady - Sweet
Marsh Shrubs | Dawn | Clear

Frosted Weevil - Umami
Marsh Shrubs (Muddy areas) | Day | Clear

Icy Gale - Bitter
Croakfeet | Dawn | Clear


Dreaming Critters
Dreamfly - Sour
Reeds | Daytime | Clear

Forgotten Wish - Umami
Dream Orchids (Aquatic flower) | Daytime | Rain

Firefly - Spicy
Lilypads | Night | Clear

Moon Jelly - Slimy
Break up larger jellyfish | Dawn | Clear
but i coulda sworn i've seen these all day even during rain

Swamp Glider - Bitter
Stagnant Rushes (aquatic plant) | Daytime | Rain

Dreamcutter Bee - Umami
Beehives (Kindergarten) | Night | Clear

Purple Watchman - Slimy
Around stone lanterns | Night | Clear

Dream Weaver - Slimy
Climate Control doorways | Night | Clear

Memory Tumbler - Spicy
Memory Works | Daytime | Clear

Spotted Daydream - Sour
Near ancient gateways | Night | Clear

Recommended bugs to use as feed are in bold.