taxonID	type	description	language	source
3193C2462750549185F08EFACABBD52D.taxon	description	Figs 4, 5	en	Su, Yu-Ting, Xu, Fei, Zhang, Ping, Deng, Peng-Tao, Lai, Meng-Meng, Chen, Zuo-Hong (2025): Morphology, multilocus phylogeny, and toxin analysis reveal two new species of Amanita section Amanita (Amanitaceae) from China. MycoKeys 118: 225-244, DOI: 10.3897/mycokeys.118.141080
3193C2462750549185F08EFACABBD52D.taxon	etymology	Etymology. flavomelleiceps, from flavo = yellow, and melleiceps from Amanita melleiceps, is proposed because this species is similar to Amanita melleiceps but has yellowish, felted volval remnants on the pileus.	en	Su, Yu-Ting, Xu, Fei, Zhang, Ping, Deng, Peng-Tao, Lai, Meng-Meng, Chen, Zuo-Hong (2025): Morphology, multilocus phylogeny, and toxin analysis reveal two new species of Amanita section Amanita (Amanitaceae) from China. MycoKeys 118: 225-244, DOI: 10.3897/mycokeys.118.141080
3193C2462750549185F08EFACABBD52D.taxon	description	Description. Basidioma (Fig. 4). small to medium. Pileus 2.5 – 5 cm diameter, convex to plano-convex, lacking a depression or umbo at center, yellowish (3 A 3 – 5), yellow (4 A 6 – 8), to yellowish brown (5 C 7 – 8), often darker at center and becoming paler towards margin; volval remnants on pileus verrucose to felted, 5 – 7 mm diameter, dirty yellow (3 A 2 – 4), randomly arranged; margin striate (0.37 – 0.41 R); trama white (1 A 1), unchanging. Lamellae free, cream (3 A 1), crowded; lamellulae truncate, plentiful. Stipe 5.5 – 9 cm long × 0.5 – 1 cm diameter, cylindric and slightly tapering upwards, with apex slightly expanded, dirty white (2 B 1) to white (1 A 1), sometimes with yellowish (3 A 2 – 3) tinge, covered with yellowish (3 A 3 – 5) fibrils; hollow in center; basal bulb subglobose, 0.7 – 1.5 cm diameter, white (1 A 1) to dirty white (2 B 1); volval remnants on stipe base floccose to granular and short limbate volva on limit between stipe and basal bulb, yellowish (3 A 3 – 5) to cream (3 A 1). Annulus persistent, subapical to median, yellowish (3 A 2 – 5) to yellow (4 A 5 – 8), membranous. Odor indistinct. Microstructure (Fig. 5). Lamellar trama bilateral. Mediostratum 30 – 50 μm wide, composed of ellipsoid to clavate inflated cells (25 – 120 × 15 – 45 μm); filamentous hyphae fairly abundant, 3 – 7 μm wide; vascular hyphae scarce. Lateral stratum composed of ellipsoid to cylindrical inflated cells (20 – 70 × 15 – 30 μm), diverging at an angle of ca. 30 ° – 40 ° to the mediostratum; filamentous hyphae abundant, 3 – 5 μm wide. Subhymenium (Fig. 5 a) 40 – 60 μm thick, with 2 – 3 layers of subglobose to ellipsoid or irregular cells, 11 – 25 × 9 – 20 μm. Basidia (Fig. 5 a) 40 – 60 × 14 – 16 μm, clavate, 4 - spored; sterigmata 3 – 6 μm long; basal septa lacking clamps. Basidiospores (Fig. 5 b) [110 / 4 / 1] (7.0 –) 8.0 – 10 (– 11.5) × (6.0 –) 7.0 – 9.0 μm, Q = 1.0 – 1.22, Q m = 1.06 ± 0.006, mostly subglobose, sometimes broadly ellipsoid, inamyloid, colorless, thin-walled, smooth; apiculus small. Lamellar edge appearing as a sterile strip up to 40 – 80 μm wide in side view, composed of broadly ellipsoid to long ellipsoid inflated cells (10 – 25 × 8 – 15 μm), single and terminal or in chains of 2 – 3, thin-walled, colorless; filamentous hyphae 2 – 4 μm wide, irregularly arranged or running parallel to lamellar edge. Pileipellis 110 – 180 μm thick; suprapellis up to 60 – 90 μm thick, gelatinized, composed of radially arranged, thin-walled, colorless or sometimes yellow-brown filamentous hyphae 2 – 6 μm wide; subpellis up to 50 – 70 μm thick, composed of radially and compactly arranged, filamentous hyphae 2 – 7 μm wide, yellowish or yellow-brown; vascular hyphae scarce. Volval remnants on pileus (Fig. 5 c) composed of more or less vertically arranged elements; filamentous hyphae scarce, 2 – 7 μm wide, colorless, thin-walled, branching, anastomosing; inflated cells very abundant to dominant, subglobose or ellipsoid to broadly ellipsoid, 26 – 85 × 17 – 55 μm, colorless, thin-walled (≤ 0.05 μm), terminal or in chains of 2 – 3; vascular hyphae scarce. Interior of volval remnants on the stipe base composed of irregularly arranged elements; filamentous hyphae very abundant, 2 – 6 μm wide, colorless, thin-walled, branching, anastomosing; inflated cells scarce, subglobose to broadly ellipsoid (26 – 85 × 17 – 55 μm). Stipe trama composed of longitudinally arranged, clavate terminal cells, 28 – 130 × 12 – 80 μm; filamentous hyphae abundant, 2 – 5 μm wide; vascular hyphae scarce. Annulus dominantly composed of radially arranged elements; filamentous hyphae very abundant, 2 – 5 μm wide, colorless, thin-walled, branching, anastomosing; inflated cells scattered to fairly abundant, fusiform to elongate, 20 – 82 × 12 – 25 μm. Clamps absent in all parts of the basidioma.	en	Su, Yu-Ting, Xu, Fei, Zhang, Ping, Deng, Peng-Tao, Lai, Meng-Meng, Chen, Zuo-Hong (2025): Morphology, multilocus phylogeny, and toxin analysis reveal two new species of Amanita section Amanita (Amanitaceae) from China. MycoKeys 118: 225-244, DOI: 10.3897/mycokeys.118.141080
3193C2462750549185F08EFACABBD52D.taxon	distribution	Distribution. Currently known from southwestern China, but likely occurs more widely in the region with similar vegetation.	en	Su, Yu-Ting, Xu, Fei, Zhang, Ping, Deng, Peng-Tao, Lai, Meng-Meng, Chen, Zuo-Hong (2025): Morphology, multilocus phylogeny, and toxin analysis reveal two new species of Amanita section Amanita (Amanitaceae) from China. MycoKeys 118: 225-244, DOI: 10.3897/mycokeys.118.141080
35031905BDD45EC5A74EB0A1638E8483.taxon	description	Figs 6, 7	en	Su, Yu-Ting, Xu, Fei, Zhang, Ping, Deng, Peng-Tao, Lai, Meng-Meng, Chen, Zuo-Hong (2025): Morphology, multilocus phylogeny, and toxin analysis reveal two new species of Amanita section Amanita (Amanitaceae) from China. MycoKeys 118: 225-244, DOI: 10.3897/mycokeys.118.141080
35031905BDD45EC5A74EB0A1638E8483.taxon	etymology	Etymology. Parvisychnopyramis, from parvi = small and sychnopyramis from Amanita sychnopyramis, is proposed because this species is similar to A. sychnopyramis but has smaller basidioma and basidiospores.	en	Su, Yu-Ting, Xu, Fei, Zhang, Ping, Deng, Peng-Tao, Lai, Meng-Meng, Chen, Zuo-Hong (2025): Morphology, multilocus phylogeny, and toxin analysis reveal two new species of Amanita section Amanita (Amanitaceae) from China. MycoKeys 118: 225-244, DOI: 10.3897/mycokeys.118.141080
35031905BDD45EC5A74EB0A1638E8483.taxon	description	Description. Basidiomata (Fig. 6) Small-sized. Pileus 3 – 4 cm diameter, applanate, center often depressed, light brown (2 B 3 – 5) to brownish (3 C 3 – 4), with a brown center (4 C 5 – 8), becoming pale brownish (2 B 2 – 3) toward margin; margin striate (0.25 – 0.39 R); volval remnants conical to subconical, cream colored (3 A 1) to yellowish (1 B 3 – 4), radially and compactly arranged over the disk but easily removed; trama white (1 A 1), unchanging. Lamellae free, white (1 A 1); lamellulae truncate, evenly distributed. Stipe 7 – 8 cm long × 0.5 – 1 cm diam., dirty white (2 B 1) to white (1 A 1), subcylindrical and slightly tapering upwards, with apex slightly expanded, covered with cream (1 A 2) to yellowish (2 A 2) fibrils, often becoming floccose to patchy near basal bulb; context white (1 A 1), fistulose; basal bulb subglobose to ovate, 0.8 – 1.2 cm diam., volval remnants on stipe base collar-like, or shortly limbate, cream (3 A 1) to yellowish (1 A 3). Annulus present, superior to subapical, pale brownish (2 B 2 – 4) to dirty white (3 A 1), membranous, fragile. Odor indistinct. Microstructure (Fig. 7), Lamellar trama bilateral. Mediostratum 30 – 40 μm wide, composed of abundant ellipsoid to long-ellipsoid inflated cells (20 – 95 × 10 – 40 μm); abundant filamentous hyphae, 2 – 4 μm wide; vascular hyphae scarce. Lateral stratum composed of abundant clavate to long-clavate inflated cells (27 – 65 × 11 – 25 μm), diverging at an angle of ca. 30 ° – 45 ° toward mediostratum; filamentous hyphae abundant, 3 – 5 μm wide. Subhymenium (Fig. 7 a) 25 – 40 μm thick, with 2 – 3 layers of subglobose to ellipsoid or irregular cells, 11 – 27 × 9 – 25 μm. Basidia (Fig. 7 a) 35 – 56 × 11 – 15 μm, clavate, 4 - spored; sterigmata 3 – 6 (– 7) μm long; basal septa lacking clamps. Basidiospores (Fig. 7 b) [100 / 3 / 2] (8.5 –) 9.0 – 11.0 × 8.0 – 10.0 μm, Q = 1.0 – 1.16 (– 1.22), Q m = 1.10 ± 0.08, mostly subglobose and broadly ellipsoid, inamyloid, colorless, thin-walled, smooth; apiculus small. Lamellar edge appearing as a sterile strip, composed of subglobose, broadly ellipsoid to clavate inflated cells (12 – 25 × 7 – 15 μm), single and terminal or in chains of 2 – 3, thin-walled, colorless; filamentous hyphae abundant, 2 – 4 μm wide, irregularly arranged or running more or less parallel to lamellar edge. Pileipellis 100 – 125 μm thick; suprapellis up to 60 – 90 μm thick, gelatinized, composed of radially thin-walled, colorless, filamentous hyphae 2 – 6 μm wide; subpellis up to 50 – 75 μm thick, composed of radially and compactly arranged, filamentous hyphae 2 – 7 μm wide; vascular hyphae scarce. Volval remnants on pileus (Fig. 7 c) composed of ± vertically arranged elements; filamentous hyphae scarce to fairly abundant, 2 – 6 μm wide, colorless, thin-walled, branching, anastomosing; inflated cells very abundant to dominant, subglobose, fusiform to ellipsoid (15 – 62 × 8 – 55 μm), colorless, thin-walled (≤ 0.05 μm), terminal or in chains of 2 – 3; vascular hyphae scarce. Interior of volval remnants on stipe base dominantly composed of longitudinally arranged elements; filamentous hyphae very abundant, 2 – 6 μm wide, colorless, thin-walled, branching, anastomosing; inflated cells fairly abundant, subglobose to broadly ellipsoid or clavate (10 – 81 × 9 – 40 μm). Stipe trama composed of longitudinally arranged, clavate terminal cells, 10 – 171 × 8 – 50 μm; filamentous hyphae scattered to abundant, 2 – 6 μm wide; vascular hyphae scarce. Annulus dominantly composed of subradially arranged elements; filamentous hyphae abundant, 2 – 5 μm wide, colorless, thin-walled, branching, anastomosing; inflated cells fairly abundant, clavate to long ellipsoid (26 – 118 × 23 – 59 μm), colorless, thin-walled; vascular hyphae rare. Clamps absent in all tissues.	en	Su, Yu-Ting, Xu, Fei, Zhang, Ping, Deng, Peng-Tao, Lai, Meng-Meng, Chen, Zuo-Hong (2025): Morphology, multilocus phylogeny, and toxin analysis reveal two new species of Amanita section Amanita (Amanitaceae) from China. MycoKeys 118: 225-244, DOI: 10.3897/mycokeys.118.141080
35031905BDD45EC5A74EB0A1638E8483.taxon	distribution	Distribution. Currently known from southwestern China, but likely occurs more widely in other areas with similar vegetation.	en	Su, Yu-Ting, Xu, Fei, Zhang, Ping, Deng, Peng-Tao, Lai, Meng-Meng, Chen, Zuo-Hong (2025): Morphology, multilocus phylogeny, and toxin analysis reveal two new species of Amanita section Amanita (Amanitaceae) from China. MycoKeys 118: 225-244, DOI: 10.3897/mycokeys.118.141080
