“Morels” (a genus of edible sac fungi) sounds like “morals,” and there have been several puns. “I knew an unscrupulous mushroom farmer….he had no morels” was posted on Twitter on June 4, 2013. “My sister went on a date with a mushroom salesman. Fungi, but he had no morels” was posted on Twitter on January 16, 2015.
 
A riddle was posted on Twitter on April 27, 2015:
 
Q: Why didn’t anyone respect the mushroom farmer?
A: He had no “morels.”
 
 
Wikipedia: Morchella
Morchella, the true morels, is a genus of edible sac fungi closely related to anatomically simpler cup fungi in the order Pezizales (division Ascomycota). These distinctive fungi have a honeycomb appearance, due to the network of ridges with pits composing their cap. Morels are prized by gourmet cooks, particularly in French cuisine. Due to difficulties in cultivation, commercial harvesting of wild morels has become a multimillion-dollar industry in the temperate Northern Hemisphere, in particular North America, Turkey, China, the Himalayas, India, and Pakistan, where these highly prized fungi are found in abundance.
     
Twitter
David Gross‏
@Punmaster
I knew an unscrupulous mushroom farmer….he had no morels.
10:33 PM - 4 Jun 2013
         
Twitter
trev elkin‏
@trevelkin
My sister went on a date with a mushroom salesman. Fungi, but he had no morels. @YawnThePost #duddum-tshhhhh
5:52 PM - 16 Jan 2015
 
Twitter
Tyler Riddle‏
@ThomasTRiddle
Why didn’t anyone respect the mushroom farmer?
He had no “morels”
🍄
9:28 AM - 27 Apr 2015
     
Reddit—Jokes
Why did the man steal mushrooms from the store?
submitted March 8, 2016 by paintedforfilth
Because he had no morels.
 
Twitter
Marty Nelson‏
@alien90230
Then there’s the one about the guy who stole a bunch of mushrooms because he had no morels….
10:54 PM - 15 Mar 2016
 
Twitter
jalb‏
@jalbus
why was the smurf homeless?
cuz he had no morels
9:58 AM - 6 May 2016
 
Vinton Today
I’M SURE HE’S A ‘FUNGI’ AND ALL, BUT HE HAS NO ‘MORELS’
Posted by Kathy Lariviere | May 6, 2016
It’s mushroom season.
     
Twitter
Andy Marlow‏
@_BlueBeard_
I wanted to buy some wild mushrooms from an unscrupulous man but he was out of stock. He had no morels.
5:27 PM - 16 Sep 2016
   
Reddit—Jokes
Did you hear about the sketchy mushroom vendor?
submitted October 18, 2017 by NeverAnon
He has no Morels
   
Reddit—Jokes
Why did the mushroom farmer turn to crime?
submitted December 28, 2017 by ralphsdad
Because he had no morels.
 
Reddit—Dad Jokes
Did you hear about the unscrupulous mushroom hunter? (self.dadjokes)
submitted January 18, 2018 by Krombopulos137
He had no morels.