Membership fees pay for meeting space, guest speakers, special events, postage, insurance, Mushroom Festival participation, community education, research projects and more. Members also receive discounts on CMS t-shirts and are kept updated on CMS events through email and through our newsletter. Payments are good for one year membership, with the exception of Horn of Plenty (Life) membership payments.

Annual Membership Options


Do you believe in the mission and work of CMS? Add your commitment to the ranks of those who have become a Lifetime Member. Horn of Plenty Lifetime members are an esteemed part of our CMS community, and we look forward to welcoming you into this special group. Lifetime memberships do not expire. Once your lifetime membership is paid in full, you are forever considered an active CMS member.Horn of Plenty Lifetime Membership…………………………………..$300.00

NOTE:If you want your membership name, address or email to be different from the billing information, please let us know the correct membership information in the ‘Add special instructions to the seller’ section provided during checkout. You will see this option on the ‘review your information’ page. You can also email the information to

  • Cascade Mycological Society is a non-profit under 501(c)(3). (Tax ID 931274419) Donations are tax deductible to the fullest extent allowed under the law.
  • To maintain active membership status, membership dues must be paid annually, with the exception of Horn of Plenty (Life) membership.
  • CMS does not share membership information with any other groups or organizations.
  • Newsletters are published four or five times a year, on a mycologically oriented schedule. Expect them in late summer, fall, winter and spring.


We welcome donations in any amount.

Other Ways to Support CMS

We sell handmade mushroom earrings and a seasonal mushroom cookbook to support our mycology scholarship programs. Visit our store at