Skr. Vidensk.-Selsk. Christiana, Math.-Naturvidensk. Kl. 7: 230 (1921).

For a detailed description, see Clerc (1987b, 2007) and Purvis et al. (1992). Thallus shrubby to subpendant, with divergent branches, 3–5(–12) cm; base black, often with a “stalk” before branching; main branches elongate, somewhat inflated, secondary branches distinctly constricted at their base; fibrils few or numerous, rather long; papillae numerous; soralia scattered over branches, punctiform at first, and large when mature but remaining discrete; isidiomorphs few, usually seen on the tips of branches and absent on mature soralia. Cortex glossy, thin; medulla thick and loose.