Plants of the Gila Wilderness
Presented in Association with the
Western New Mexico University Department
of Natural Sciences
Heterodermia diademata (Taylor) D. D. Awasthi
Cupped Fringe Lichen
Heterodermia diademata is a foliose lichen that is whitish to gray above and whitish below,
with a lower cortex, with stocky white to black rhizines. There are no soredia or isidia, but there may be
a light pruina. The brownish disc of the apothecia is overhung by rounded-lobed
margins. There are eight two-celled brown-colored spores per ascus. Heterodermia diademata grows
mainly on bark, and has a special predilection for gray oak. The photobiont is a single-celled green
alga-- possibly Trebouxia. There are algal cells in the wall of the apothecium (lecanorine apothecium).
Please click on an image for a larger file.
Heterodermia diademata, photo Russ Kleinman & Karen Blisard, Black Range, along Hwy 152,
opposite Lower Gallinas Cmpgrd on gray oak branches, April 13, 2024
Heterodermia diademata, macro of habit, photo Russ Kleinman & Karen Blisard, Black Range, along Hwy 152,
opposite Lower Gallinas Cmpgrd on gray oak branches, April 13, 2024
Heterodermia diademata, macro of habit, photo Russ Kleinman & Karen Blisard, Black Range, along Hwy 152,
opposite Lower Gallinas Cmpgrd on gray oak branches, April 13, 2024
Heterodermia diademata, macro of apotheium, photo Russ Kleinman & Karen Blisard, Black Range, along Hwy 152,
opposite Lower Gallinas Cmpgrd on gray oak branches, April 13, 2024
Heterodermia diademata, macro of habit, photo Russ Kleinman & Karen Blisard, Black Range, along Hwy 152,
opposite Lower Gallinas Cmpgrd on gray oak branches, April 13, 2024
Heterodermia diademata, macro of undersurface and rhizines, photo Russ Kleinman & Karen Blisard, Black Range, along Hwy 152,
opposite Lower Gallinas Cmpgrd on gray oak branches, April 13, 2024
Heterodermia diademata, photomicrograph of cross section of thallus with upper and lower cortex
evident, photo Russ Kleinman & Karen Blisard, Black Range, along Hwy 152,
opposite Lower Gallinas Cmpgrd on gray oak branches, April 13, 2024
Heterodermia diademata, cross section of lecanorine apothecium, photo Russ Kleinman & Karen Blisard, Black Range, along Hwy 152,
opposite Lower Gallinas Cmpgrd on gray oak branches, April 13, 2024
Heterodermia diademata, photomicrograph of 8 2-celled brown spores per ascus, photo Russ Kleinman & Karen Blisard, Black Range, along Hwy 152,
opposite Lower Gallinas Cmpgrd on gray oak branches, April 13, 2024
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