Species of Russula subgenus Heterophyllidiae (Russulaceae, Basidiomycota) from Dinghushan Biosphere Reserve Author Song, Yu School of Biological Science & Engineering, Shaanxi University of Technology, Hanzhong 723000, China. Shaanxi Province Key Laboratory of Bio-resources, Hanzhong 723000, China. Qinba State Key Laboratory of Biological Resources and Ecological Environment, Hanzhong 723000, China. songyucanada@foxmail.com text European Journal of Taxonomy 2022 2022-06-22 826 1 32 http://dx.doi.org/10.5852/ejt.2022.826.1831 journal article 79789 10.5852/ejt.2022.826.1831 cf0f9fba-20fe-4f61-a987-49fba7cf861a 2118-9773 6686605

Table 3. Detailed morphological comparison of two new taxa with their phylogenetically related species. Morphological characters that can be used to separate species from their relatives are given in bold.

Character	R. dinghuensis	R. subpallidirosea	R. pallidirosea	R. lotus	R. purpureorosea sp. nov.	R. fusiformata sp. nov.
Pileus size (cm)	4–8	3–7	1.5–2.5	3.5–9.5	3–5	6–9
Pileus color	olive green with rusty tone	pale pink with yellowish brown spot	pinkish	pinkish white to purplish pink	pale pinkish purple	lavender blush to rosy brown
Pileus margin	even or incurved	even or incurved	faintly sulcate	slightly striate	even or incurved	crenate
Lamellae	rarely forked	often forking	occasionally forked	occasionally forked	rarely forked	rarely forked
Pileipellis in cresyl blue	metachromatic	metachromatic	–	–	metachromatic	metachromatic
Stipe (mm)	3–6.5 × 0.8–1.2	3.1–6.5 × 0.8–1.3	1.2–2.2 × 0.3–0.5	3–8 × 0.8–1.8	2.5–4 × 0.5–1.8	6–8 × 1.5–2
Spore size (μm)	(5.5–)6–6.9–8.0 (–8.5) × 5.0–6.3–7.0	(5.5–)6–6.7–8.0 (–9.0) × 5.0–5.9– 7.0(–8.0)	6.0–8.5 × 5.0–7.0	(6.5–)7–8(–10) × (5–)6–7(–8)	(6.1–)6.4–7.0-7.7 (–7.8) × (5.3–)5.4– 5.8–6.3(–6.6)	(4.8–)5.6–6.5–7.4 (–7.6) × (4.5–)5.1– 5.7–6.3(–6.7)
Spore ornamentation	isolated or not forming a reticulum	mostly not forming a reticulum	–	disconnected	mostly isolated and not forming a reticulum	mostly isolated and not forming a reticulum
Pleurocystidia (μm)	44–67 × 6–10	35–50 × 5–8	40–55 × 5–7	52–70 × 10–16	32–55–85 × 3.5–7–9	43–50–53 × 7–8–9
Pleurocystidia in SV	dark grey	grey	–	–	negative	negative
Cheilocystidia (μm)	45–52 × 4–6	55–63 × 6–10	40–55 × 5–7	52–70 × 10–16	54–60–95 × 7–8.5–10	36.5–52–78 × 5–9–11
Caulocystidia (μm)	43–76 × 5–6.3	50–83 × 4–6	17–50 × 2–4	–	9–38 × 2.3–7	19–31 × 3–10.5
Pileocystidia (μm)	32–53 × 2.5–5	27–38 × 3–5	17–50 × 2–4	15–60 × 4–8	17–53 × 2.5–9	15.5–64 × 2–10