Intro to Crustose Lichen Identification 

Thank you for the video, Its very informative. I've been diving into the subject of lichen so I can properly label and tag some macro photos I've put online and this is a great resource. It took awhile to narrow it down but being able to say its a lobate crustose lichen with round apothecia will help me pretend to be smart.

Hi! :) I'm drawed into the lichen world! I would like to learn more. You mentioned about a book noth america lichens. How can i get it? Maybe there is any chance to get it on pdf file?