New Zealand: "Stewart Island, W of Xmas Village; 18.iii.1969, leg. Horak" (PDD, 27112: holotype; ZT, 69/151: isotype).

Pileus -35 mm diam., campanulate to broadly umbonate; straw-yellow to lemon-yellow; conspicuously innate-fibrillose, smooth around centre, dry, veil remnants absent. Lamellae adnexed, crowded; straw yellow when young turning yellow-brown, edge con colorous. Stipe -30 x -5 mm, cylindrical, base clavate to bulbous, submarginate; yellow, pruinose for whole length; veil remnants absent, dry, becoming hollow, single in groups. Context yellow to yellow-green, turning light orange. Odour spermatic.
Spores 8-10 x 5-6 µm, irregular angular, knobs not pronounced, brown. Basidia 25-33 x 6-7 µm, 4-spored. Cheilo- and pleurocystidia 60-80 x 15-20 µm, thick-walled, encrusted or not, yellow-brown plasmatic pigment in KOH, fusoid. Caulocystidia 50-90 x 10-18 µm, cylindrical to lageniform, mostly thin-walled, occasionally encrusted. Cuticle a cutis of cylindrical hyphae (3-10 µm diam.), membranes encrusted with yellowish pigment. Clamp connections present.

On sand in dunes, under Leptospermum scoparium. New Zealand.

Pileo -35 mm lato, campanulato, stramineo, fibrilloso, sicco. Lamellis adnexis, e stramineo luteo brunneis. Stipite -30 x -5 mm, ad basim bulboso, pileo concolori, apicaliter pruinoso, Odore ingrato. Sporis 8-10 x 5-6 µm, angulato-nodulosis. Cystidiis luteis, metuloideis, incrustatis. Habitato ad arenam sub Leptospermo. Nova Zeiandia. Typus (PDD, 27112).

The yellow colour and the habitat are distinctive for this rare species. To my knowledge there is no other yellow Astrosporina in Australasia.