AUSTRALIA, Western Australia, Kununurra, Mulligan’s Lagoon Road, on Echinochloakimberleyensis, 9 Apr. 2008, A.R. McTaggart, V.L. Challinor, A.D.W. Geering, M.D.E. Shivas & R.G. Shivas leg. (holotype: BRIP 51843).

Named after the Kimberley region of northern Western Australia from where it was collected.

Sori in some of the ovaries, often deciduous, globose to ovoid, 3–6 × 2–4 mm, green at first, later brown, smooth, ruptures irregularly to reveal a granular, dark brown mass of spore balls; columella absent. Spore balls subglobose, ovoid, elongate or irregular, 275–100 µm diam, dark brown, composed of up to several hundred spores, separated by moderate pressure. Spore globose, ovoid to irregular, slightly polyhedral, (9–) 9.5–12 (–14.5) × (8–) 8.5–9.5 (–10) μm (xˉ = 10.5 ± 1.2 × 8.9 ± 0.7 μm, n = 50), subhyaline to yellowish brown, attached together by multiple narrow cylindrical protuberances about 2 μm wide and 1–2 μm long; wall with irregular meshes and wings, 0.5 μm thick, smooth.

AUSTRALIA, Western Australia, Kununurra, Mulligan’s Lagoon Road, on E.kimberleyensis, 7 May 2009, A.R. McTaggart, M.J. Ryley, M.D.E. Shivas & R.G. Shivas leg. (BRIP 52498).

Moesziomyceskimberleyensis was shown in the phylogenetic analysis to reside in a well-supported clade sister to M.bullatus. Moesziomyceskimberleyensis is only known from the teleomorph, which forms sori in flowers of E.kimberleyensis, and thereby differs from M.bullatus by host association. Moesziomyceskimberleyensis is only known from one location in Western Australia on E.kimberleyensis, which is an endemic grass in the tropical and subtropical woodlands of northern Australia.