Fig. 4From: Resolved phylogeny and biogeography of the root pathogen Armillaria and its gasteroid relative, Guyanagaster a–g Guyanagaster lucianii (BRG 41292 HOLOTYPE). a Exterior showing dark brown peridium and irregularly lobed shape. b Subhypogeous habit. c Longitudinal section of basidioma showing immature gleba, developed columella and elongated stipe. d Maturing gleba. e Basidiospores of immature basidioma. f Basidiospores of mature basidioma. g Mature gleba. Bar = one cm in a, b, c, d and g. Bar = 20 μm in e and f Back to article page