Black morel mushroom (Morchella importuna)
Clean live culture sent in a mini dish or a 2ml Eppendorf tube. The epp tubes are sturdy and good for sending internationally. They seal hermetically. This species is also available on a mini dish - see the Container option when adding to cart.
Morel mycelium looks like cobweb mould and grows just as fast. You'll have a plate colonized in 2-3 days.
Alan Rockefeller says that
> The best morel to grow is probably Morchella importuna due to the good flavor and ease of cultivation. Morchella rufobrunnea is another easy one to grow, but it's not as easy.
Here's a paper about indoor cultivation of M. rufobrunnea: