Plants of the Gila Wilderness

Flavopunctelia praesignis is foliose, pale gray- to yellow-green and grows on oaks and other hardwoods in the Gila. There are no soralia or isidia. The undersurface is black and rugose on the interior, with the margins of younger lobes smooth and brown. The medulla shows a color change to red in sodium hypochorite. There are numerous obvious pseudocyphellae (breaks in the cortex with white medullary hyphae showing) on the upper surface. There are also numerous marginal pycnidia on some of the mature lobes.

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Flavopunctelia praesignis, growing on gray oak, photo Russ Kleinman & Karen Blisard, Pinos Altos Range, McMillan Campground, January 22, 2026

Flavopunctelia praesignis, upper surface with obvious pseudocyphellae, photo Russ Kleinman & Karen Blisard, Pinos Altos Range, McMillan Campground, January 22, 2026

Flavopunctelia praesignis, upper surface with marginal black pycnidia, photo Russ Kleinman & Karen Blisard, Pinos Altos Range, McMillan Campground, January 22, 2026

Flavopunctelia praesignis, upper surface with marginal black pycnidia, photo Russ Kleinman & Karen Blisard, Pinos Altos Range, McMillan Campground, January 22, 2026

Flavopunctelia praesignis, upper surface with apothecia, photo Russ Kleinman & Karen Blisard, Pinos Altos Range, McMillan Campground, January 22, 2026

Flavopunctelia praesignis, lower surface, photo Russ Kleinman & Karen Blisard, Pinos Altos Range, McMillan Campground, January 22, 2026

Flavopunctelia praesignis, medulla red in hypochlorite, photo Russ Kleinman & Karen Blisard, Pinos Altos Range, McMillan Campground, January 22, 2026