The previous page is sending you to https://www.semanticscholar.org/paper/Usnea-cornuta-K%C3%B6rb.-and-Usnea-glabrescens-(Vainio)-Chaker/51d9ba6bfac2ae4957507135a472f303b10c8a74/figure/1.

 If you do not want to visit that page, you can return to the previous page.