General:
Small to occasionally medium stratified foliose lichens, corticate above and below, lacking soredia and isidia, lobes closely appressed to in part semi-erect, elongate-linear to elongate, averaging to 0.5–1.5 mm wide, thick. Upper surface pale grey to nearly black, bearing white angular markings/maculae. Lower surface tan or black, dull, apparently white-pruinose, lacking rhizines. Medulla white. Photobiont green. Apothecia located over upper surface; spores simple, ellipsoid, colourless, 8 per ascus.

Notes: Brodoa is an arctic-alpine genus containing three species worldwide, though only one of these occurs in B.C. Brodoa was formerly treated within Hypogymnia.

Reactions:
All spot tests negative.

Contents:
Calycin and pulvinic dilactone.

Source:  Lichens of British Columbia

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration By:  Trevor Goward

Synonyms and Alternate Names:
Brodoa intestiniformis (Vill.) Goward
Hypogymnia encausta
Hypogymnia intestiniformis
Hypogymnia oroarctica Krog
Parmelia intestiniformis (Vill.) Ach.