Fig. 14From: Enlightening the black and white: species delimitation and UNITE species hypothesis testing in the Russula albonigra species complexRussula ustulata (AV 16–019), hymenium. a Basidia. b Marginal cells. c Basidiospores. d Cystidia near lamellae edges. e Cystidia on lamellae sides. Bar = 10 μm, except for c 5 μmBack to article page