FIGURE 5 in Russula (Russulaceae) in western Himalaya 1: Two new species from subg. Russula

FIGURE 5. Russula petersenii sp. nov. (AG 16–1272, Holotype). a–b. Fresh and dissected basidiomata in the field and at base camp; c–d. Radial section through pileipellis showing elements; e–f. Transverse section through lamellae showing pleurocystidia; g. Transverse section through lamellae showing cheilocystidia; h–i. Image of basidiospores under SEM. Scale bars: b = 40 mm; c–g = 10 μm; h–i = 2 μm. Photographs by A. Ghosh.