Welcome to the California Lichen Society!

California’s State Lichen, Lace Lichen (Ramalina menziesii). Read more about how CALS made California the first to have a state lichen.

2026 California Lichen Society

Annual Meeting & Field Trip!

  • Sat, 24 Jan 2026 from 10:00 AM - 10:00 PM

  • UC System McLaughlin Reserve

Register

CALS members in the news - a lecture coming up in early February by our own CALS board member, Ken Kellman, in Santa Cruz!
Registration for our Annual Meeting is now open! Link in bio! Our annual meeting will be at the McLaughlin Reserve near Lower Lake, California. The main events will be on Saturday, January 24. We will explore the Reserve for lichens during the day,
We are thrilled to announce that the California Lichen Society will be hosting our annual meeting in January. Please make plans to join us for a symbiotically good time of lichenizing, learning, and socializing with other lichen enthusiasts! Everybod
CALS has organized a lichen bioblitz at Salt Point State Park (in Sonoma County) for the weekend of September 6-7, 2025! We are limited to 15 participants, and the goal is for them to be experienced lichen enthusiasts with an interest in collecting
We have organized a short morning excursion to Tilden Park in Berkeley on Saturday, June 7th to explore and collect some lichen specimens and then take them to the Jepson Herbarium at UC Berkeley the same afternoon to try our hands at identifying the
The California Lichen Society offers small grants to support research pertaining to the lichens of California. No geographical constraints are placed on grantees or their associated institutions, as long as their research or activities are connected t
The California Lichen Society’s annual meeting is underway! We are going to try to live stream Dr. Jessi Allen’s keynote address at 8pm tonight—tune in to hear about rare lichen population genomics and conservation! #CALS #californ
Rejoice! Registration is now open for the California Lichen Society's annual meeting and field trip. Register at the link in our bio! The field trip will be from 10 am-3 pm near Los Osos, and the evening session, including a potluck dinner and a re
Save the date!! Mark your calendars! Go buy a hand lens if you don’t already have one. The California Lichen Society Annual Meeting is just around the corner and this year it’s in Paso Robles! Get ready Central California! We’re so
Check it out y’all! Our friends at @onetamalpais are putting on lichen bioblitzes this month. Join and spread the word# #lichen #bioblitz #mttam #onetam #marin #baynature #getoutside @nwlichenologists @baynaturemagazine @lichenscitisci
California Lichen Society aka CALS will be sponsoring another informal lichen keying session at UC Berkeley, to be held in room 3030 of the Valley Life Sciences Building on Saturday, September 7th from 10:00am-2:00pm, again kindly hosted by @klarasc