Umbilicaria mammulata 01
描述：
Description: English: Umbilicaria mammulata growing on a rock near the summit of Pratt Mountain (New Ipswich, New Hampshire). Taken on May 20, 2009. Date: 20 May 2009. Source: Own work. Author: J. Carmichael.
Description: English: Umbilicaria mammulata growing on a rock near the summit of Pratt Mountain (New Ipswich, New Hampshire). Taken on May 20, 2009. Date: 20 May 2009. Source: Own work. Author: J. Carmichael.
