Austroboletus appendiculatus (CAL 1304, holotype). a-c Fresh basidiomata in the field and base camp. d Hymenophoral trama. e Terminal cells of hyphae of pileipellis. f Cross section through stipitipellis showing anastomosing ridges. g, h Caulocystidia. i Basidiospores. j, k SEM micrograph of basidiospores. Scale bars: a = 100 mm, d = 50 µm, e, g-j = 10 µm, f = 100 µm, k = 5 µm.