Type

"Holotypus: <i>I.D. Cowie 12020</i>, 22 Apr. 2008, Limmen National Park, c. 24 km S of Ranger Station, Northern Territory (AD 246363). Isotypi: DNA (<i>n.v.</i>), B (<i>n.v.</i>)."

Etymology

"from the Latin adjective <i>atratus</i>, dressed in black, derived from <i>ater</i>, black, dark, and the suffix -<i>atus</i>, meaning provided with, alluding to the conspicuous red- to black-lined margins of the sepals."

Type

"Holotypus: <i>I.D. Cowie 12020</i>, 22 Apr. 2008, Limmen National Park, c. 24 km S of Ranger Station, Northern Territory (AD 246363). Isotypi: DNA (<i>n.v.</i>), B (<i>n.v.</i>)."