A lichen
Dermatocarpon moulinsii
Description 6
Thallus: foliose, single-lobed attached by a single umbilicus and with 17-32 wide lobes; upper surface: gray, with epinecral layer consisting of air filled hyphae; upper cortex: 70-100 µm thick, hyaline with outermost part, c. 10 µm, brownish; algal layer: 50-120 µm thick; medulla: 110-220 µm thick, of filmentous hyphae turning red with Melzer's iodine; lower cortex: 50-70 µm thick, with the outermost 10-20 µm brown; lower surface: light to dark brown with rhizinomorphs; rhizinomorphs: consisting of cortex, 30-70 µm thick; Perithecia: broadly obpyriform to globose, with hyaline exciple that is light brown to brown in the uppermost part; asci: clavate or cylindrical, 8-spored; ascospores: simple, hyaline, 10-13 x 5-8 µm; Pycnidia: not found; Spot test: all negative; Secondary metabolites: none detected.; Substrate and ecology: rocks, often growing on mossy rocks in shade; World distribution: Eurasia, North America; Sonoran distribution: Arizona, Sonora, and Chihuahua.; Notes: Dermatocarpon moulinsii is characterized by the rhizinomorphs, which only consist of the lower cortex while the rhizinomorphs of D. schaecthelinii are thicker and have a medullary layer. Dermatocarpon moulinsii furthermore has thinner thallus and generally shorter spores than D. schaechtelinii.
Fuentes y créditos
- (c) Jason Hollinger, algunos derechos reservados (CC BY-SA), https://images.mushroomobserver.org/640/238895.jpg
- (c) Jason Hollinger, algunos derechos reservados (CC BY-SA), https://images.mushroomobserver.org/640/238896.jpg
- (c) National Museum of Natural History Collections, algunos derechos reservados (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10531518
- (c) National Museum of Natural History Collections, algunos derechos reservados (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10531519
- (c) National Museum of Natural History Collections, algunos derechos reservados (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10531520
- (c) Lichen Unlimited: Arizona State University, Tempe., algunos derechos reservados (CC BY-NC-SA), http://eol.org/data_objects/10548816
